Golden barrel cactus (Echinocactus grusonii)
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Species: Echinocactus grusonii
Common Name: Golden barrel cactus
Status: Critically Endangered, IUCN Red List
Artist: Ingrid Finnan
Artist Home Country: United States
Medium: Oil on paper
Only about 250 plants of this Mexican cactus, which grows on volcanic rock, remain in the wild. It is, however, one of the most widely cultivated cacti, found around the world in greenhouses and gardens.
A specimen of Golden barrel cactus (Echinocactus grusonii) from the museum's herbarium collection: