Physaria parviflora |
Physaria multiceps |
|
---|---|---|
frosty bladderpod, Piceance bladderpod, Picenace bladderpod |
manyhead bladderpod |
|
Habit | Perennials; caudex simple or branched; densely (silvery) pubescent, trichomes (irregularly radiate), 6–8-rayed, rays furcate or bifurcate, fused at base. | Perennials; caudex (buried), branched, (not thickened); densely pubescent, trichomes (sessile or short-stalked), 5–8-rayed, rays furcate or bifurcate, (umbonate, rough to finely tuberculate throughout). |
Stems | several from base, prostrate to decumbent, (usually unbranched, rarely branched distally), 1–3 dm. |
several from base, prostrate, (slender, sparsely pubescent), 0.5–2 dm. |
Basal leaves | (tufted); blade broadly obovate, 1–2 cm, margins entire or with 1 or 2 broad teeth, (apex rounded to obtuse). |
blade obovate to narrowly elliptic, 1.5–6 cm, margins usually entire, rarely shallowly dentate, (surfaces densely pubescent, often silvery). |
Cauline leaves | blade oblanceolate to nearly oblong, similar to basal, (base cuneate), margins entire. |
blade oblanceolate to spatulate, 0.5–1 cm, margins entire, (surfaces often sparsely pubescent). |
Racemes | (secund), loose, (elongated in fruit). |
(narrow), loose, (elongated in fruit). |
Flowers | sepals (yellowish), elliptic to lanceolate, (2–)3–4 mm; petals spatulate, (3.9–)5–7 mm. |
sepals (greenish brown, sometimes magenta), linear or elliptic, 4.3–6(–7.5) mm, (median pair thickened apically, cucullate); petals (frequently pink or magenta in distal 1/3–1/2), spatulate to oblanceolate, 6–10(–12) mm, (claw undifferentiated from blade). |
Fruiting pedicels | (recurved), 6–8(–12) mm. |
(ascending to somewhat spreading, straight to slightly curved), 4–8(–12) mm. |
Fruits | (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. |
broadly ovoid to suborbicular, inflated, (terete or, often, slightly angustiseptate), 3–6mm; valves sparsely pubescent; ovules usually 4, rarely 6–8 per ovary; style 3–6.5 mm. |
Seeds | somewhat flattened. |
plump. |
Physaria parviflora |
Physaria multiceps |
|
Phenology | Flowering Jun–Jul. | Flowering May–Jul. |
Habitat | Shale of steep slopes, rock crevices, ledges, canyon sides, shale-marlstone | Douglas-fir or spruce woodlands, limestone ridges, damp open slopes, soil pockets among rocks, crevices of rocks, decomposed calcareous rocks |
Elevation | 2100-2700 m (6900-8900 ft) | 2400-2900 m (7900-9500 ft) |
Distribution |
CO
|
ID; UT; WY |
Discussion | 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.) |
|
Source | FNA vol. 7, p. 657. | FNA vol. 7, p. 651. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Lesquerella parviflora | Lesquerella multiceps |
Name authority | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) | (Maguire) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) |
Web links |