Kellogg's Spurred Lupine

Lupinus caudatus is a widespread species of wildflower in genus Lupinus from western North America known by the common names tailcup lupin and spurred lupin. It is distinctive for the short spur on its purple-blue flowers, for which it is named. Because of its wide distribution and toxicity it commonly causes poisonings of susceptible livestock such as horses, cattle, and sheep, though it is eaten without harm by wild herbivores like deer and elk. It is generally found from the Coastal Ranges and Sierra Nevada Mountains in the west to the Rocky Mountains in the east.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

Considered toxic. Public sources list it as such; we have not verified this individually. The note covers its whole genus. Quinolizidine alkaloids in seeds of many species Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

• Lupinus argenteus — considered toxic
• Lupinus sericeus — considered toxic
• Lupinus arbustus — considered toxic
• Lupinus meionanthus — considered toxic
• Lupinus obtusilobus — considered toxic
• Lupinus albicaulis — considered toxic

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Lupinus

Species

Lupinus caudatus

More species