| Taxon | Fritillaria biflora var. biflora |
| group | Monocots |
| Family | Liliaceae |
| Family common name(s) | lily; lilywort; lilyworts |
| Genus common name(s) | fritillaria; fritillary; mission-bells; mission bells; missionbells; checker-lily; checker lily; checkerlily; checkered lily; rice-root; rice root; riceroot; rice-roots; rice roots |
| Species common name(s) | California chocolate-lily; California chocolate lily; black fritillary; two-flower chocolate-lily; two flower chocolate lily; two-flowered fritillary; two flowered fritillary |
| |
| Common name(s) specific to synonym; taxon noted in brackets | Roderick's fritillary [Fritillaria roderickii]; Roderick fritillary [Fritillaria roderickii] |
| Common name(s) generally applied to other taxa or multiple taxa | chocolate-lily, chocolate lily, chocolate lilies are applied to multiple Fritillaria taxa; black lily is applied to taxa in multiple families |
| |
| Notes | Roderick is a proper name, so upper case preferable; Rodericks is an error |
| Synonymy: The Jepson Manual (1993), FNA, PLANTS, etc | Fritillaria roderickii W. Knight |
