Physaria purpurea |
Physaria argyraea |
|
---|---|---|
rose bladderpod |
silver bladderpod |
|
Habit | Perennials; caudex simple, (usually woody); densely pubescent, trichomes (sessile or short-stalked), several-rayed, rays simple or furcate, (smooth or tuberculate). | |
Stems | simple from base, erect, (unbranched, sparsely leaved), to 7 dm. |
|
Basal leaves | blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid. |
|
Cauline leaves | (proximal often narrowed to short petiole, distal sessile); blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire. |
|
Racemes | dense or slightly elongated. |
|
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). |
|
Fruiting pedicels | (spreading or recurved, loosely sigmoid), 5–25 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. |
|
Seeds | flattened. |
|
2n | = 18, 36. |
|
Physaria purpurea |
Physaria argyraea |
|
Phenology | Flowering Mar–Oct. | |
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 | |
Elevation | 400-2400 m (1300-7900 ft) | |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora)
|
TX; n Mexico |
Discussion | Subspecies 2 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 7, p. 659. | FNA vol. 7, p. 627. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Vesicaria purpurea, Lesquerella purpurea, Lesquerella purpurea subsp. foliosa, Lesquerella purpurea var. foliosa, P. purpurea var. foliosa | Vesicaria argyraea, Alyssum argyraeum, Lesquerella argyraea |
Name authority | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 321. (2002) |
Web links |