Rare Plant Identifiers
Latin Name: Amsinckia grandiflora
Common Names: largeflowered fiddleneck
Designations: Federally Endangered, State Endangered (California), Globally Imperiled (G1)
Visit Amsinckia grandiflora on the USDA PLANTS Database by clicking HERE.
Visit Bromus hordeaceus on the USDA PLANTS Database by clicking HERE.
Visit Vulpia myuros on the USDA PLANTS Database by clicking HERE.
In Drop Tower Canyon, California, non-native and native grasses were stronger competitors than rare plants at high densities. Non-native species suppressed rare plant’s reproductive output at low to intermediate densities. Competitors included Bromus hordeaceus and Vulpia myuros. Annual grass mix including Bromus hordeaceus and Vulpia myuros reduced the production of Amsinckia grandiflora inflorences (Carlsen, Menke, and Pavlik 2000)
Carlsen, T.M., Menke, J.W., and Pavlik, B.M. 2000. Reducing competitive suppression of a rare annual forb by restoring native California perennial grasslands. Restoration Ecology. 8, 1:18-29.