Physaria alpestris |
Physaria engelmannii |
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alpine twinpod, Washington twinpod |
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Habit | 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. |
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Flowers | Inflorescence of short, crowded, bractless racemes; pedicles ascending, 10-15 mm. long; sepals 4, the outer pair saccate at the base; petals 4, yellow, spatulate, 8-14 mm. long; stamens 6; style 5-7 mm. long. |
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Fruits | Silicles strongly inflated, developed in pairs, 14-18 mm. long and broad, shallowly cordate at the base, the apical sinus open, 2-3 mm. deep. |
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Physaria alpestris |
Physaria engelmannii |
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Flowering time | April-July | |
Habitat | Open rocky areas, scree and talus slopes, middle to high elevations in the mountains. | |
Distribution | Occurring east of the Cascades crest in Washington, where endemic to Chelan, Kittitas and Yakima counties.
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Origin | Native | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |