Constance'S Rockcress

Description

Boechera constancei-is a species of flowering plant in the-mustard family-known by the common name-Constance's rockcress. It is-endemic-to-California, where it is known only from the northern-Sierra Nevada-of-Plumas-and-Sierra Counties. It is a member of the-serpentine soils-flora. This is a perennial herb growing from a branching, woody-caudex. It produces one or more erect, hairless stems to maximum heights between 15 and 30 centimeters. The caudex is surrounded by a dense basal rosette of stiff, blue-green, lance-shaped leaves up to 3 centimeters long. There may be a few smaller leaves along the stem. The-inflorescence-produces 5 to 10 white mustardlike flowers with protruding-stamens. The fruit is a hanging green-silique-4 or 5 centimeters long which contains round, winged seeds.