Physaria alpestris |
Physaria pendula |
|
---|---|---|
alpine twin-pod, Washington bladder-pod, Washington twin-pod |
Snake Range bladderpod |
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Habit | Perennials; caudex usually simple, rarely branched, (cespitose); (silvery) pubescent throughout, trichomes several-rayed, rays (1- or) 2-bifurcate, (low-umbonate, tubercles relatively few, small). | Perennials; caudex simple; densely pubescent, trichomes 5–7-rayed, rays bifurcate or trifurcate. |
Stems | several from base, decumbent to ascending, (unbranched), 0.5–1.5 dm. |
several from base, erect or outer usually decumbent toward base, (from below a terminal tuft of mostly erect leaves, unbranched), 1–2 dm. |
Basal leaves | (petiole slender); blade obovate, 3–5 cm (width 10–20 mm, base tapering abruptly to petiole), margins entire, (apex rarely slightly acute). |
blade ovate to elliptic, 2–4 cm, (base gradually narrowed to petiole), margins entire, (surfaces densely pubescent with trichome layers). |
Cauline leaves | blade oblanceolate, 0.5–1.5 cm (width 3–5 mm), margins entire. |
(remote, proximal shortly petiolate); blade spatulate to oblanceolate, similar to basal, (base often cuneate), margins entire. |
Racemes | subcorymbose. |
elongated. |
Flowers | sepals oblong, 8–10 mm; petals spatulate, 12–14 mm. |
sepals linear-oblong, 5–7 mm, (lateral pair subsaccate); petals (erect), lingulate, 8–10 mm, (claw barely differentiated from blade). |
Fruiting pedicels | (divaricate, straight), 5–10 mm. |
(recurved), 7–10 mm. |
Fruits | didymous, mostly highly inflated (strongly flattened at least in 1/2 toward replum), 14–18 × 14–18 mm, (papery, basal sinus slightly notched, apical open, shallow); valves (retaining seeds after dehiscence), evenly pubescent; replum lanceolate, 7–10 mm, width 1.5–2.5 mm, as wide as or wider than fruit, apex acute to acuminate; ovules 8–10 per ovary; style 5–7 mm. |
(usually pendent, sessile), subglobose, slightly flattened (angustiseptate), 4–5 mm; valves densely pubescent, trichomes somewhat spreading; ovules 8–12 per ovary; style 4–5 mm. |
Seeds | flattened, (2–3 mm). |
plump, (mucilaginous when wetted). |
2n | = 48–52, 52, 64, 67–70. |
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Physaria alpestris |
Physaria pendula |
|
Phenology | Flowering May–Jun. | Flowering May–Jun. |
Habitat | Alpine scree, rocky ridges, talus slopes, volcanic sands and gravel, serpentine gravel, granitic slopes, mountain shrub, subalpine fir, and whitebark pine communities | Limestone gravel and cobbles, typically with junipers |
Elevation | (700-)1300-2400 m ((2300-)4300-7900 ft) | 1700-2100 m (5600-6900 ft) |
Distribution |
WA
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NV |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 7, p. 624. | FNA vol. 7, p. 657. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Lesquerella alpestris | Lesquerella pendula |
Name authority | Suksdorf: W. Amer. Sci. 15: 58. (1906) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) |
Web links |