- Mammillaria camptotricha — likely to require a low level of donation
- Mammillaria candida — likely to require a low level of donation
- Mammillaria capensis — likely to require a low level of donation
- Mammillaria carmenae — likely to require a low level of donation
- Mammillaria carnea — likely to require a low level of donation
- Mammillaria carretii — likely to require a low level of donation
- Mammillaria centralifera — likely to require a low level of donation
- Mammillaria cerralboa — likely to require a low level of donation
- Mammillaria coahuilensis — likely to require a low level of donation
- Mammillaria columbiana — likely to require a low level of donation
- Mammillaria compressa — likely to require a low level of donation
- Mammillaria conspicua — likely to require a low level of donation
- Mammillaria crinita — likely to require a low level of donation
- Mammillaria crucigera — likely to require a low level of donation
- Mammillaria decipiens — likely to require a low level of donation
- Mammillaria deherdtiana — likely to require a low level of donation
- Mammillaria densispina — likely to require a low level of donation
- Mammillaria deserti — likely to require a low level of donation
- Mammillaria diabloa — likely to require a low level of donation
- Mammillaria dioica — likely to require a low level of donation
- Mammillaria discolor — likely to require a low level of donation
- Mammillaria dixanthocentron — likely to require a low level of donation
- Mammillaria duoformis — likely to require a low level of donation
- Mammillaria duwei — likely to require a low level of donation
- Mammillaria ekmanii — likely to require a low level of donation
- Mammillaria elongata — likely to require a low level of donation
- Mammillaria eriacantha — likely to require a low level of donation
- Mammillaria erythrosperma — likely to require a low level of donation
- Mammillaria evermanniana — likely to require a low level of donation
- Mammillaria fera — likely to require a low level of donation
- Mammillaria fittkaui — likely to require a low level of donation
- Mammillaria flavicentra — likely to require a low level of donation
- Mammillaria formosa — likely to require a low level of donation
- Mammillaria fraileana — likely to require a low level of donation
- Mammillaria gasseriana — likely to require a low level of donation
- Mammillaria geminispina — likely to require a low level of donation
- Mammillaria gigantea — likely to require a low level of donation
- Mammillaria glassii — likely to require a low level of donation
- Mammillaria glochidiata — likely to require a low level of donation
- Mammillaria goodridgei — likely to require a low level of donation
- Mammillaria goodridgii — likely to require a low level of donation
- Mammillaria grahamii — likely to require a low level of donation
- Mammillaria grusonii — likely to require a low level of donation
- Mammillaria guelzowiana — likely to require a low level of donation
- Mammillaria guerreronis — likely to require a low level of donation
- Mammillaria guillauminiana — likely to require a low level of donation
- Mammillaria haageana — likely to require a low level of donation
- Mammillaria hahniana — likely to require a low level of donation
- Mammillaria halbingeri — likely to require a low level of donation
- Mammillaria halei — likely to require a low level of donation
- Mammillaria hamata — likely to require a low level of donation
- Mammillaria hernandezii — likely to require a low level of donation
- Mammillaria herrerae — likely to require a low level of donation
- Mammillaria heyderi — likely to require a low level of donation
- Mammillaria homisphaerica — likely to require a low level of donation
- Mammillaria hubert-muelleri — likely to require a low level of donation
- Mammillaria huitzilopochtli — likely to require a low level of donation
- Mammillaria humboldtii — likely to require a low level of donation
- Mammillaria hutchisoniana — likely to require a low level of donation
- Mammillaria insularis — likely to require a low level of donation
- Mammillaria jaliscana — likely to require a low level of donation
- Mammillaria johnstonii — likely to require a low level of donation
- Mammillaria karwinskiana — likely to require a low level of donation
- Mammillaria kewii — likely to require a low level of donation
- Mammillaria klissingiana — likely to require a low level of donation
- Mammillaria knippeliana — likely to require a low level of donation
- Mammillaria kraehenbuehlii — likely to require a low level of donation
- Mammillaria lasiacantha — likely to require a low level of donation
- Mammillaria laui — likely to require a low level of donation
- Mammillaria lenta — likely to require a low level of donation
- Mammillaria leucantha — likely to require a low level of donation
- Mammillaria limonensis — likely to require a low level of donation
- Mammillaria linaresensis — likely to require a low level of donation
- Mammillaria lindsayi — likely to require a low level of donation
- Mammillaria lindseyi — likely to require a low level of donation
- Mammillaria lloydii — likely to require a low level of donation
- Mammillaria longiflora — likely to require a low level of donation
- Mammillaria longimamma — likely to require a low level of donation
- Mammillaria loricata — likely to require a low level of donation
- Mammillaria luethyi — likely to require a low level of donation
- Mammillaria magnifica — likely to require a low level of donation
- Mammillaria magnimamma — likely to require a low level of donation
- Mammillaria mainiae — likely to require a low level of donation
- Mammillaria mammillaris — likely to require a low level of donation
- Mammillaria marcosii — likely to require a low level of donation
- Mammillaria marksiana — likely to require a low level of donation
- Mammillaria mathildae — likely to require a low level of donation
- Mammillaria matudae — likely to require a low level of donation
- Mammillaria mazatlanensis — likely to require a low level of donation
- Mammillaria meiacantha — likely to require a low level of donation
- Mammillaria melaleuca — likely to require a low level of donation
- Mammillaria melanocentra — likely to require a low level of donation
- Mammillaria mercadensis — likely to require a low level of donation
- Mammillaria meyranii — likely to require a low level of donation
- Mammillaria microhelia — likely to require a low level of donation
- Mammillaria mieheana — likely to require a low level of donation
- Mammillaria moelleriana — likely to require a low level of donation
- Mammillaria morganiana — likely to require a low level of donation
- Mammillaria muehlenpfordtii — likely to require a low level of donation
- Mammillaria multiceps — likely to require a low level of donation
- Mammillaria multidigitata — likely to require a low level of donation
- Mammillaria mystax — likely to require a low level of donation
- Mammillaria nana — likely to require a low level of donation
- Mammillaria napina — likely to require a low level of donation
- Mammillaria nazasensis — likely to require a low level of donation
- Mammillaria neopalmeri — likely to require a low level of donation
- Mammillaria nivosa — likely to require a low level of donation
- Mammillaria nunezii — likely to require a low level of donation
- Mammillaria orcuttii — likely to require a low level of donation
- Mammillaria oteroi — likely to require a low level of donation
- Mammillaria pacifica — likely to require a low level of donation
- Mammillaria painteri — likely to require a low level of donation
- Mammillaria parkinsonii — likely to require a low level of donation
- Mammillaria patonii — likely to require a low level of donation
- Mammillaria pectinifera — likely to require a low level of donation
- Mammillaria peninsularis — likely to require a low level of donation
- Mammillaria pennispinosa — likely to require a low level of donation
- Mammillaria perbella — likely to require a low level of donation
- Mammillaria perezdelarosae — likely to require a low level of donation
- Mammillaria petrophila — likely to require a low level of donation
- Mammillaria petterssonii — likely to require a low level of donation
- Mammillaria phitauiana — likely to require a low level of donation
- Mammillaria picta — likely to require a low level of donation
- Mammillaria pilispina — likely to require a low level of donation
- Mammillaria pleschnickii — likely to require a low level of donation
- Mammillaria plumosa — likely to require a low level of donation
- Mammillaria polyedra — likely to require a low level of donation
- Mammillaria polythele — likely to require a low level of donation
- Mammillaria pondii — likely to require a low level of donation
- Mammillaria poselgeri — likely to require a low level of donation
- Mammillaria pottsii — likely to require a low level of donation
- Mammillaria pringlei — likely to require a low level of donation
- Mammillaria prolifera — likely to require a low level of donation
- Mammillaria pumila — likely to require a low level of donation
- Mammillaria rekoi — likely to require a low level of donation
- Mammillaria rettigiana — likely to require a low level of donation
- Mammillaria rhodantha — likely to require a low level of donation
- Mammillaria rhodocentra — likely to require a low level of donation
- Mammillaria roseoalba — likely to require a low level of donation
- Mammillaria saboae — likely to require a low level of donation
- Mammillaria sanchez-mejoradae — likely to require a low level of donation
- Mammillaria sartorii — likely to require a low level of donation
- Mammillaria schiedeana — likely to require a low level of donation
- Mammillaria schumannii — likely to require a low level of donation
- Mammillaria schwarzii — likely to require a low level of donation
- Mammillaria scrippsiana — likely to require a low level of donation
- Mammillaria sempervivi — likely to require a low level of donation
- Mammillaria senilis — likely to require a low level of donation
- Mammillaria sinistrohamata — likely to require a low level of donation
- Mammillaria solisioides — likely to require a low level of donation
- Mammillaria sonorensis — likely to require a low level of donation
- Mammillaria sphacelata — likely to require a low level of donation
- Mammillaria sphaerica — likely to require a low level of donation
- Mammillaria spinosissima — likely to require a low level of donation
- Mammillaria standleyi — likely to require a low level of donation
- Mammillaria stella-de-tacubaya — likely to require a low level of donation
- Mammillaria supertexta — likely to require a low level of donation
- Mammillaria surculosa — likely to require a low level of donation
- Mammillaria tayloriorum — likely to require a low level of donation
- Mammillaria tetrancistra — likely to require a low level of donation
- Mammillaria tezontle — likely to require a low level of donation
- Mammillaria theresae — likely to require a low level of donation
- Mammillaria thornberi — likely to require a low level of donation
- Mammillaria tonalensis — likely to require a low level of donation
- Mammillaria uncinata — likely to require a low level of donation
- Mammillaria varieaculeata — likely to require a low level of donation
- Mammillaria vetula — likely to require a low level of donation
- Mammillaria viperina — likely to require a low level of donation
- Mammillaria viridiflora — likely to require a low level of donation
- Mammillaria voburnensis — likely to require a low level of donation
- Mammillaria wagneriana — likely to require a low level of donation
- Mammillaria weingartiana — likely to require a low level of donation
- Mammillaria wiesingeri — likely to require a low level of donation
- Mammillaria wildii — likely to require a low level of donation
- Mammillaria winterae — likely to require a low level of donation
- Mammillaria wrightii — likely to require a low level of donation
- Mammillaria xaltianguensis — likely to require a low level of donation
- Mammillaria zacatecasensis — likely to require a low level of donation
- Mammillaria zeilmanniana — likely to require a low level of donation
- Mammillaria zephyranthoides — likely to require a low level of donation
- Mammillaria zublerae — likely to require a low level of donation
- Matucana aurantiaca — likely to require a low level of donation
- Matucana aureiflora — likely to require a low level of donation
- Matucana formosa — likely to require a low level of donation
- Matucana haynei — likely to require a low level of donation
- Matucana huagalensis — likely to require a low level of donation
- Matucana intertexta — likely to require a low level of donation
- Matucana krahnii — likely to require a low level of donation
- Matucana madisoniorum — likely to require a low level of donation
- Matucana oreodoxa — likely to require a low level of donation
- Matucana paucicostata — likely to require a low level of donation
- Matucana polzii — likely to require a low level of donation
- Matucana pujupatii — likely to require a low level of donation
- Matucana ritteri — likely to require a low level of donation
- Matucana tuberculata — likely to require a low level of donation
- Matucana weberbaueri — likely to require a low level of donation
- Melocactus albicephalus — likely to require a low level of donation
- Melocactus andinus — likely to require a low level of donation
- Melocactus azureus — likely to require a low level of donation
- Melocactus bahiensis — likely to require a low level of donation
- Melocactus bellavistensis — likely to require a low level of donation
- Melocactus braunii — likely to require a low level of donation
- Melocactus brederooianus — likely to require a low level of donation
- Melocactus broadwayi — likely to require a low level of donation
- Melocactus caroli-linnaei — likely to require a low level of donation
- Melocactus concinnus — likely to require a low level of donation
- Melocactus conoideus — likely to require a low level of donation
- Melocactus curvispinus — likely to require a low level of donation
- Melocactus deinacanthus — likely to require a low level of donation
- Melocactus ernestii — likely to require a low level of donation
- Melocactus estevesii — likely to require a low level of donation
- Melocactus ferreophilus — likely to require a low level of donation
- Melocactus glaucescens — likely to require a low level of donation
- Melocactus goniodacanthus — likely to require a low level of donation
- Melocactus harlowii — likely to require a low level of donation
- Melocactus horridus — likely to require a low level of donation
- Melocactus inconcinnus — likely to require a low level of donation
- Melocactus intortus — likely to require a low level of donation
- Melocactus lanssensianus — likely to require a low level of donation
- Melocactus lemairei — likely to require a low level of donation
- Melocactus levitestatus — likely to require a low level of donation
- Melocactus macracanthos — likely to require a low level of donation
- Melocactus matanzanus — likely to require a low level of donation
- Melocactus mazelianus — likely to require a low level of donation
- Melocactus melacactoides — likely to require a low level of donation
- Melocactus neryi — likely to require a low level of donation
- Melocactus oreas — likely to require a low level of donation
- Melocactus pachyacanthus — likely to require a low level of donation
- Melocactus paucispinus — likely to require a low level of donation
- Melocactus peruvianus — likely to require a low level of donation
- Melocactus praerupticola — likely to require a low level of donation
- Melocactus rotifer — likely to require a low level of donation
- Melocactus rotula — likely to require a low level of donation
- Melocactus salvadorensis — likely to require a low level of donation
- Melocactus schatzlii — likely to require a low level of donation
- Melocactus sergipensis — likely to require a low level of donation
- Melocactus smithii — likely to require a low level of donation
- Melocactus stramineus — likely to require a low level of donation
- Melocactus violaceus — likely to require a low level of donation
- Melocactus zehntneri — likely to require a low level of donation
- Micranthocereus albicephalus — likely to require a low level of donation
- Micranthocereus auriazureus — likely to require a low level of donation
- Micranthocereus densiflorus — likely to require a low level of donation
- Micranthocereus dolichospermaticus — likely to require a low level of donation
- Micranthocereus estevesii — likely to require a low level of donation
- Micranthocereus oliveirae — likely to require a low level of donation
- Micranthocereus polyanthus — likely to require a low level of donation
- Micranthocereus purpureus — likely to require a low level of donation
- Micranthocereus streckeri — likely to require a low level of donation
- Micranthocereus violaciflorus — likely to require a low level of donation
- Micropuntia pulchella — likely to require a low level of donation
- Mila caespitosa — likely to require a low level of donation
- Mila naleana — likely to require a low level of donation
- Miqueliopuntia miquelii — likely to require a low level of donation
- Monvillea spegazzinii — likely to require a low level of donation
- Myrtgerocactus lindsayi — likely to require a low level of donation
- Myrtillocactus bensonii — likely to require a low level of donation
- Myrtillocactus cochal — likely to require a low level of donation
- Myrtillocactus eichlamii — likely to require a low level of donation
- Myrtillocactus geometrizan — likely to require a low level of donation
- Myrtillocactus geometrizans — likely to require a low level of donation
- Myrtillocactus schenckii — likely to require a low level of donation
- Neobuxbaumia euphorbioides — likely to require a low level of donation
- Neobuxbaumia laui — likely to require a low level of donation
- Neobuxbaumia macrocephala — likely to require a low level of donation
- Neobuxbaumia mezcalaensis — likely to require a low level of donation
- Neobuxbaumia multiareolata — likely to require a low level of donation
- Neobuxbaumia polylopha — likely to require a low level of donation
- Neobuxbaumia sanchez-mejoradae — likely to require a low level of donation
- Neobuxbaumia scoparia — likely to require a low level of donation
- Neobuxbaumia squamulosa — likely to require a low level of donation
- Neobuxbaumia tetetzo — likely to require a low level of donation
- Neolloydia conoidea — likely to require a low level of donation
- Neolloydia matehualensis — likely to require a low level of donation
- Neoraimondia arequipensis — likely to require a low level of donation
- Neoraimondia aticensis — likely to require a low level of donation
- Neoraimondia herzogiana — likely to require a low level of donation
- Neowerdermannia chilensis — likely to require a low level of donation
- Neowerdermannia vorwerkii — likely to require a low level of donation
- Nopalea cochenillifera — likely to require a low level of donation
- Notocactus tephracanthus — likely to require a low level of donation
- Nyctocereus serpentinus — likely to require a low level of donation
- Obregonia denegrii — likely to require a low level of donation
- Opuntia abjecta — likely to require a low level of donation
- Opuntia acaulis — likely to require a low level of donation
- Opuntia aequatorialis — likely to require a low level of donation
- Opuntia albicans — likely to require a low level of donation
- Opuntia albicarpa — likely to require a low level of donation
- Opuntia alko-tuna — likely to require a low level of donation
- Opuntia anacantha — likely to require a low level of donation
- Opuntia arcei — likely to require a low level of donation
- Opuntia arechavaletae — likely to require a low level of donation
- Opuntia arenaria — likely to require a low level of donation
- Opuntia assumptionis — likely to require a low level of donation
- Opuntia atrispina — likely to require a low level of donation
- Opuntia auberi — likely to require a low level of donation
- Opuntia aurantiaca — likely to require a low level of donation
- Opuntia aurea — likely to require a low level of donation
- Opuntia aureispina — likely to require a low level of donation
- Opuntia austrina — likely to require a low level of donation
- Opuntia bahamana — likely to require a low level of donation
- Opuntia bakeri — likely to require a low level of donation
- Opuntia basilaris — likely to require a low level of donation
- Opuntia bella — likely to require a low level of donation
- Opuntia bisetosa — likely to require a low level of donation
- Opuntia boldinghii — likely to require a low level of donation
- Opuntia bonaerensis — likely to require a low level of donation
- Opuntia bonplandii — likely to require a low level of donation
- Opuntia borinquensis — likely to require a low level of donation
- Opuntia bravoana — likely to require a low level of donation
- Opuntia buchii — likely to require a low level of donation
- Opuntia camanchica — likely to require a low level of donation
- Opuntia caracassana — likely to require a low level of donation
- Opuntia carstenii — likely to require a low level of donation
- Opuntia cespitosa — likely to require a low level of donation
- Opuntia chaffeyi — likely to require a low level of donation
- Opuntia chihuahuaensis — likely to require a low level of donation
- Opuntia chisosensis — likely to require a low level of donation
- Opuntia chlorotica — likely to require a low level of donation
- Opuntia chuquisacana — likely to require a low level of donation
- Opuntia cochabambensis — likely to require a low level of donation
- Opuntia colubrina — likely to require a low level of donation
- Opuntia columbiana — likely to require a low level of donation
- Opuntia conjugens — likely to require a low level of donation
- Opuntia crassa — likely to require a low level of donation
- Opuntia crystalena — likely to require a low level of donation
- Opuntia cubensis — likely to require a low level of donation
- Opuntia cymochila — likely to require a low level of donation
- Opuntia deamii — likely to require a low level of donation
- Opuntia decumbens — likely to require a low level of donation
- Opuntia dejecta — likely to require a low level of donation
- Opuntia delaetiana — likely to require a low level of donation
- Opuntia demissa — likely to require a low level of donation
- Opuntia depressa — likely to require a low level of donation
- Opuntia dillenii — likely to require a low level of donation
- Opuntia discolor — likely to require a low level of donation
- Opuntia drummondii — likely to require a low level of donation
- Opuntia durangensis — likely to require a low level of donation
- Opuntia echinacea — likely to require a low level of donation
- Opuntia echios — likely to require a low level of donation
- Opuntia edwardsii — likely to require a low level of donation
- Opuntia eichlamii — likely to require a low level of donation
- Opuntia ekmanii — likely to require a low level of donation
- Opuntia elata — likely to require a low level of donation
- Opuntia elatior — likely to require a low level of donation
- Opuntia elizondoana — likely to require a low level of donation
- Opuntia ellisiana — likely to require a low level of donation
- Opuntia engelmannii — likely to require a low level of donation
- Opuntia erinacea — likely to require a low level of donation
- Opuntia excelsa — likely to require a low level of donation
- Opuntia ficus-barbarica — likely to require a low level of donation
- Opuntia ficus-indica — likely to require a low level of donation
- Opuntia fragilis — likely to require a low level of donation
- Opuntia fuliginosa — likely to require a low level of donation
- Opuntia galapageia — likely to require a low level of donation
- Opuntia gallegiana — likely to require a low level of donation
- Opuntia gaumeri — likely to require a low level of donation
- Opuntia gosseliniana — likely to require a low level of donation
- Opuntia greggii — likely to require a low level of donation
- Opuntia guatemalensis — likely to require a low level of donation
- Opuntia guilanchi — likely to require a low level of donation
- Opuntia helleri — likely to require a low level of donation
- Opuntia hondurensis — likely to require a low level of donation
- Opuntia howeyi — likely to require a low level of donation
- Opuntia huajuapensis — likely to require a low level of donation
- Opuntia hualapensis — likely to require a low level of donation
- Opuntia humifusa — likely to require a low level of donation
- Opuntia hybr — likely to require a low level of donation
- Opuntia hyptiacantha — likely to require a low level of donation
- Opuntia hystricina — likely to require a low level of donation
- Opuntia inaperta — likely to require a low level of donation
- Opuntia jamaicensis — likely to require a low level of donation
- Opuntia joconostle — likely to require a low level of donation
- Opuntia karwinskiana — likely to require a low level of donation
- Opuntia keyensis — likely to require a low level of donation
- Opuntia lagunae — likely to require a low level of donation
- Opuntia lanceolata — likely to require a low level of donation
- Opuntia lasiacantha — likely to require a low level of donation
- Opuntia leucotricha — likely to require a low level of donation
- Opuntia lilae — likely to require a low level of donation
- Opuntia littoralis — likely to require a low level of donation
- Opuntia longispina — likely to require a low level of donation
- Opuntia lucayana — likely to require a low level of donation
- Opuntia lutea — likely to require a low level of donation
- Opuntia macbridei — likely to require a low level of donation
- Opuntia macrarthra — likely to require a low level of donation
- Opuntia macrocentra — likely to require a low level of donation
- Opuntia macrorhiza — likely to require a low level of donation
- Opuntia magnifica — likely to require a low level of donation
- Opuntia martiniana — likely to require a low level of donation
- Opuntia matudae — likely to require a low level of donation
- Opuntia maxima — likely to require a low level of donation
- Opuntia megacantha — likely to require a low level of donation
- Opuntia megapotamica — likely to require a low level of donation
- Opuntia megarhiza — likely to require a low level of donation
- Opuntia megasperma — likely to require a low level of donation
- Opuntia mesacantha — likely to require a low level of donation
- Opuntia microdasys — likely to require a low level of donation
- Opuntia militaris — likely to require a low level of donation
- Opuntia monacantha — likely to require a low level of donation
- Opuntia nemoralis — likely to require a low level of donation
- Opuntia nicholii — likely to require a low level of donation
- Opuntia nuda — likely to require a low level of donation
- Opuntia occidentalis — likely to require a low level of donation
- Opuntia oligacantha — likely to require a low level of donation
- Opuntia orbiculata — likely to require a low level of donation
- Opuntia oricola — likely to require a low level of donation
- Opuntia pachyrrhiza — likely to require a low level of donation
- Opuntia pailana — likely to require a low level of donation
- Opuntia palmadora — likely to require a low level of donation
- Opuntia parviclada — likely to require a low level of donation
- Opuntia penicilligera — likely to require a low level of donation
- Opuntia phaeacantha — likely to require a low level of donation
- Opuntia pilifera — likely to require a low level of donation
- Opuntia pinkavae — likely to require a low level of donation
- Opuntia pittieri — likely to require a low level of donation
- Opuntia platycantha — likely to require a low level of donation
- Opuntia pollardii — likely to require a low level of donation
- Opuntia polyacantha — likely to require a low level of donation
- Opuntia pottsii — likely to require a low level of donation
- Opuntia puberula — likely to require a low level of donation
- Opuntia pubescens — likely to require a low level of donation
- Opuntia pumila — likely to require a low level of donation
- Opuntia pusilla — likely to require a low level of donation
- Opuntia pycnantha — likely to require a low level of donation
- Opuntia quimilo — likely to require a low level of donation
- Opuntia quitensis — likely to require a low level of donation
- Opuntia rastrera — likely to require a low level of donation
- Opuntia repens — likely to require a low level of donation
- Opuntia retrorsa — likely to require a low level of donation
- Opuntia robinsonii — likely to require a low level of donation
- Opuntia robusta — likely to require a low level of donation
- Opuntia rooneyi — likely to require a low level of donation
- Opuntia rubescens — likely to require a low level of donation
- Opuntia rufida — likely to require a low level of donation
- Opuntia sanguinea — likely to require a low level of donation
- Opuntia santa-rita — likely to require a low level of donation
- Opuntia scheeri — likely to require a low level of donation
- Opuntia schickendantzii — likely to require a low level of donation
- Opuntia schumannii — likely to require a low level of donation
- Opuntia setigera — likely to require a low level of donation
- Opuntia setispina — likely to require a low level of donation
- Opuntia soederstromiana — likely to require a low level of donation
- Opuntia spinosibacca — likely to require a low level of donation
- Opuntia spinulifera — likely to require a low level of donation
- Opuntia stenarthra — likely to require a low level of donation
- Opuntia stenopetala — likely to require a low level of donation
- Opuntia streptacantha — likely to require a low level of donation
- Opuntia stricta — likely to require a low level of donation
- Opuntia strigil — likely to require a low level of donation
- Opuntia subgen — likely to require a low level of donation
- Opuntia sulphurea — likely to require a low level of donation
- Opuntia tapona — likely to require a low level of donation
- Opuntia tayapayensis — likely to require a low level of donation
- Opuntia taylorii — likely to require a low level of donation
- Opuntia tehuacana — likely to require a low level of donation
- Opuntia tehuantepecana — likely to require a low level of donation
- Opuntia tezontepecana — likely to require a low level of donation
- Opuntia thruberi — likely to require a low level of donation
- Opuntia tomentosa — likely to require a low level of donation
- Opuntia tortispina — likely to require a low level of donation
- Opuntia triacantha — likely to require a low level of donation
- Opuntia valida — likely to require a low level of donation
- Opuntia vaseyi — likely to require a low level of donation
- Opuntia velutina — likely to require a low level of donation
- Opuntia ventanensis — likely to require a low level of donation
- Opuntia wilcoxii — likely to require a low level of donation
- Opuntia wootonii — likely to require a low level of donation
- Oreocereus celsianus — likely to require a low level of donation
- Oreocereus doelzianus — likely to require a low level of donation
- Oreocereus hempelianus — likely to require a low level of donation
- Oreocereus leucotrichus — likely to require a low level of donation
- Oreocereus pseudofossulatus — likely to require a low level of donation
- Oreocereus trollii — likely to require a low level of donation
- Oroya borchersii — likely to require a low level of donation
- Oroya peruviana — likely to require a low level of donation
- Ortegocactus macdougallii — likely to require a low level of donation
- Pacherocactus orcuttii — likely to require a low level of donation
- Pachycereus fulviceps — likely to require a low level of donation
- Pachycereus grandis — likely to require a low level of donation
- Pachycereus lipidanthus — likely to require a low level of donation
- Pachycereus militaris — likely to require a low level of donation
- Pachycereus pecten-aboriginum — likely to require a low level of donation
- Pachycereus pringlei — likely to require a low level of donation
- Pachycereus tepamo — likely to require a low level of donation
- Pachycereus weberi — likely to require a low level of donation
- Parodia alacriportana — likely to require a low level of donation
- Parodia allosiphon — likely to require a low level of donation
- Parodia arnostiana — likely to require a low level of donation
- Parodia aureicentra — likely to require a low level of donation
- Parodia ayopayana — likely to require a low level of donation
- Parodia buenekeri — likely to require a low level of donation
- Parodia buiningii — likely to require a low level of donation
- Parodia carambeiensis — likely to require a low level of donation
- Parodia chrysacanthion — likely to require a low level of donation
- Parodia columnaris — likely to require a low level of donation
- Parodia comarapana — likely to require a low level of donation
- Parodia commutans — likely to require a low level of donation
- Parodia concinna — likely to require a low level of donation
- Parodia crassigibba — likely to require a low level of donation