Ariocarpus trigonus (Star Rock), also known as Ariocarpus retusus subsp. trigonus is a slow-growing geophytic cactus with a solitary …
Browsing: trigonus
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Epithet: trigonus
Meaning: Trigonal; three-angled; having three angles
Derivation: A Latin adjective
Pronunciation: try-GOH-nus
While the generic name must be unique, two or more genera often share the same specific epithet. Moreover, the same epithet can be used for subspecies, varieties, and forms within a species. Here is a list of plants that share this epithet.