Physaria alpestris

General: Perennial herbs from a thick, branched crown, the numerous, erect to decumbent stems 5-15 cm. long; herbage silvery with tiny, appressed stellate hairs.
Leaves: Basal leaves numerous, 4-8 cm. long, the blade entire, oblanceolate or obovate, tapered to a slender petiole at least as long; cauline leaves alternate, reduced, oblanceolate.
Flowers: Inflorescence of short, crowded, bractless racemes; pedicles ascending, 10-15 mm. long; sepals 4, the outer pair saccate at the base; petals.. more