Physaria douglasii |
Physaria parviflora |
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Columbia bladder-pod, Douglas' bladder-pod |
frosty bladderpod, Piceance bladderpod, Picenace bladderpod |
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Habit | Perennials; caudex simple; densely pubescent, trichomes (sessile or nearly so), 4–6(–10)-rayed, rays usually furcate near base, rarely bifurcate, (umbonate, tuberculate throughout). | Perennials; caudex simple or branched; densely (silvery) pubescent, trichomes (irregularly radiate), 6–8-rayed, rays furcate or bifurcate, fused at base. | ||||
Stems | simple from base, erect, (usually unbranched), to 4.5 dm. |
several from base, prostrate to decumbent, (usually unbranched, rarely branched distally), 1–3 dm. |
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Basal leaves | blade suborbicular to elliptic, 2–9.5(–11.5) cm, margins entire, sinuate, coarsely dentate, or almost lyrate-pinnatifid. |
(tufted); blade broadly obovate, 1–2 cm, margins entire or with 1 or 2 broad teeth, (apex rounded to obtuse). |
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Cauline leaves | similar to basal, blade narrowly linear or, sometimes, orbicular. |
blade oblanceolate to nearly oblong, similar to basal, (base cuneate), margins entire. |
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Racemes | loose (lax). |
(secund), loose, (elongated in fruit). |
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Flowers | sepals elliptic or ovate, (2–)3.5–7.5 mm, (cucullate); petals 6–11 mm. |
sepals (yellowish), elliptic to lanceolate, (2–)3–4 mm; petals spatulate, (3.9–)5–7 mm. |
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Fruiting pedicels | (recurved, straight, curved, or sigmoid), 6–20 mm. |
(recurved), 6–8(–12) mm. |
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Fruits | obovoid to subglobose, not inflated (not angustiseptate), 3–6 mm; valves sparsely pubescent, sometimes glabrous inside, trichomes sessile or stalked; ovules 4(–8) per ovary; style (1.6–)3–6 mm. |
(usually pendent), elliptic to subglobose, usually slightly compressed (latiseptate), 3–4 mm; valves densely pubescent, sometimes with scattered trichomes inside; ovules 4 per ovary; style ca. 3 mm. |
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Seeds | flattened. |
somewhat flattened. |
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2n | = 10, 30. |
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Physaria douglasii |
Physaria parviflora |
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Phenology | Flowering Jun–Jul. | |||||
Habitat | Shale of steep slopes, rock crevices, ledges, canyon sides, shale-marlstone | |||||
Elevation | 2100-2700 m (6900-8900 ft) | |||||
Distribution |
ID; MT; OR; WA; BC
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CO
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Physaria parviflora is known from the Parachute Creek Member of the Green River Formation, Rio Blanco County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 7, p. 634. | FNA vol. 7, p. 657. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Lesquerella douglasii | Lesquerella parviflora | ||||
Name authority | (S. Watson) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) | ||||
Web links |
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