Physaria purpurea |
Physaria oregona |
|
---|---|---|
rose bladderpod |
Oregon twin-pod |
|
Habit | Perennials; caudex simple, (usually woody); densely pubescent, trichomes (sessile or short-stalked), several-rayed, rays simple or furcate, (smooth or tuberculate). | Perennials; caudex simple, (cespitose); (silvery) pubescent throughout, trichomes (stalked), few-rayed, rays furcate or imperfectly so, (tuberculate throughout). |
Stems | simple from base, erect, (unbranched, sparsely leaved), to 7 dm. |
several from base, erect or somewhat decumbent, (unbranched), 1–3.5 dm. |
Basal leaves | blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid. |
(petiole slender, usually incised or with broad teeth along petiole); blade obovate, 4–6 cm, margins entire. |
Cauline leaves | (proximal often narrowed to short petiole, distal sessile); blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire. |
blade oblanceolate or broader, 1.5–2.5 cm, margins entire or sparsely dentate, (apex acute). |
Racemes | dense or slightly elongated. |
somewhat loose, (5–15 cm). |
Flowers | sepals elliptic to ovate, 3.5–6(–7) mm, (median pair usually thickened apically, cucullate); petals (white, often purple-veined, fading purplish), suborbicular to obovate, obdeltate, or cuneate, 4.5–10(–12) mm, (often narrowed to broad claw, apex emarginate, less frequently claw undifferentiated from blade). |
sepals oblong, 5–7 mm; petals (lemon yellow), spatulate, 9–12 mm. |
Fruiting pedicels | (spreading or recurved, loosely sigmoid), 5–25 mm. |
(spreading or ascending, curved, fruits not pendent), 10–20 mm. |
Fruits | (pendent or horizontal, sessile or substipitate), subglobose to broadly ellipsoid, not or slightly inflated, (4–)5–8 mm; valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules 4–8(–12) per ovary; style 1–3(–4) 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 | flattened. |
flattened. |
2n | = 18, 36. |
= 8. |
Physaria purpurea |
Physaria oregona |
|
Phenology | Flowering Mar–Oct. | Flowering Apr–Jun. |
Habitat | Rocky draws, canyons, stony hills, ridges, rock crevices on limestone ledges, lava cliffs, sand and gravel of dry stream beds, rocky slopes, talus, shade of bushes or cactus clumps | Gravelly banks, stream shores, rocky slopes, dry hillsides, serpentine soils |
Elevation | 400-2400 m (1300-7900 ft) | 900-1900 m (3000-6200 ft) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora)
|
ID; OR; WA
|
Source | FNA vol. 7, p. 659. | FNA vol. 7, p. 655. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Vesicaria purpurea, Lesquerella purpurea, Lesquerella purpurea subsp. foliosa, Lesquerella purpurea var. foliosa, P. purpurea var. foliosa | Coulterina oregona, Lesquerella oregona |
Name authority | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | S. Watson: Proc. Amer. Acad. Arts 17: 363. (1882) |
Web links |