Distinguishing Acuña cactus, a federally endangered species, from its close relatives using genetic information

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Shannon Fehlberg, Desert Botanical Garden The Acuña cactus, Echinomastus erectocentrus var. acunensis, is an endangered species with a restricted distribution in the Sonoran Desert in southern Arizona and northern Sonora, Mexico. Population-level genetic analyses for this species are lacking, and taxonomic boundaries between E. erectocentrus var. acunensis and its close relatives E. erectocentrus var. erectocentrus […]

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