Lupinus elmeri
 Lupinus elmeri is an uncommon species of lupine known by the common names Elmer's lupine and South Fork Mountain lupine. It is endemic to California where it is known only from a few scattered occurrences in the northernmost slopes of the North Coast Ranges. This is an erect perennial herb with a thick reddish stem and green hairy herbage. It reaches a maximum height near 90 centimetres (35 in). Each palmate leaf is made up of 6 to 10 leaflets up to 6 centimetres (2.4 in) long.