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Streptanthus tortuosus is a species of flowering plant in the mustard family known by the common names shieldleaf and shieldplant. Flowers occur at intervals along the upper stem, and there is usually a leaflike bract below them. Each flower has an urn-shaped calyx of sepals in shades of purple or greenish yellow with four petals emerging from the tip.
It is native to the mountains of northern and central California, its distribution extending just into Oregon and Nevada. It grows in rocky and sandy areas in forests and woodland habitat.
Spotted on Jul 9, 2013
Submitted on Aug 25, 2013