Physaria multiceps |
Physaria oregona |
|
---|---|---|
manyhead bladderpod |
Oregon twin-pod |
|
Habit | 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). | Perennials; caudex simple, (cespitose); (silvery) pubescent throughout, trichomes (stalked), few-rayed, rays furcate or imperfectly so, (tuberculate throughout). |
Stems | several from base, prostrate, (slender, sparsely pubescent), 0.5–2 dm. |
several from base, erect or somewhat decumbent, (unbranched), 1–3.5 dm. |
Basal leaves | blade obovate to narrowly elliptic, 1.5–6 cm, margins usually entire, rarely shallowly dentate, (surfaces densely pubescent, often silvery). |
(petiole slender, usually incised or with broad teeth along petiole); blade obovate, 4–6 cm, margins entire. |
Cauline leaves | blade oblanceolate to spatulate, 0.5–1 cm, margins entire, (surfaces often sparsely pubescent). |
blade oblanceolate or broader, 1.5–2.5 cm, margins entire or sparsely dentate, (apex acute). |
Racemes | (narrow), loose, (elongated in fruit). |
somewhat loose, (5–15 cm). |
Flowers | 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). |
sepals oblong, 5–7 mm; petals (lemon yellow), spatulate, 9–12 mm. |
Fruiting pedicels | (ascending to somewhat spreading, straight to slightly curved), 4–8(–12) mm. |
(spreading or ascending, curved, fruits not pendent), 10–20 mm. |
Fruits | 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. |
didymous, obreniform, moderately inflated, angustispetate, (8–)10–12(–15) × 10–14(–16) mm, (papery, not keeled, basal sinus absent, apical sinus broad and open); valves (retaining seeds after dehiscence, rounded or irregular), loosely pubescent, trichomes spreading; replum broadly lanceolate, as wide as or wider than fruit, apex acute; ovules 8 per ovary; style 1–2 mm. |
Seeds | plump. |
flattened. |
2n | = 8. |
|
Physaria multiceps |
Physaria oregona |
|
Phenology | Flowering May–Jul. | Flowering Apr–Jun. |
Habitat | Douglas-fir or spruce woodlands, limestone ridges, damp open slopes, soil pockets among rocks, crevices of rocks, decomposed calcareous rocks | Gravelly banks, stream shores, rocky slopes, dry hillsides, serpentine soils |
Elevation | 2400-2900 m (7900-9500 ft) | 900-1900 m (3000-6200 ft) |
Distribution |
ID; UT; WY |
ID; OR; WA
|
Source | FNA vol. 7, p. 651. | FNA vol. 7, p. 655. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Lesquerella multiceps | Coulterina oregona, Lesquerella oregona |
Name authority | (Maguire) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) | S. Watson: Proc. Amer. Acad. Arts 17: 363. (1882) |
Web links |