Physaria purpurea |
Physaria eburniflora |
|
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rose bladderpod |
Devils Gate twinpod |
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Habit | Perennials; caudex simple, (usually woody); densely pubescent, trichomes (sessile or short-stalked), several-rayed, rays simple or furcate, (smooth or tuberculate). | Perennials; caudex usually simple; densely pubescent, trichomes (sessile), rays often furcate, fused toward base, (nearly smooth). |
Stems | simple from base, erect, (unbranched, sparsely leaved), to 7 dm. |
simple from base, prostrate, (arising lateral to rosette), 0.1–0.5 dm. |
Basal leaves | blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid. |
blade suborbicular, (1–)2.5(–3) cm, (base abruptly narrowed to petiole), margins entire, (flat), (surfaces densely silvery pubescent, trichomes in multiple layers, appressed). |
Cauline leaves | (proximal often narrowed to short petiole, distal sessile); blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire. |
(2–4); blade oblanceolate, ca. 1 cm, (base cuneate), margins entire, (apex acute). |
Racemes | dense or slightly elongated. |
condensed. |
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 (erect, purplish to greenish), linear-oblong or boat-shaped, 5.5–6.5 mm, (lateral pair more saccate than median); petals (white), spatulate, 9–12 mm, (claw undifferentiated from blade). |
Fruiting pedicels | (spreading or recurved, loosely sigmoid), 5–25 mm. |
(divaricate-ascending, nearly straight), 6–10 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. |
strongly didymous, irregular in shape and size, (base slightly cordate, apex with a deep closed sinus), strongly to somewhat inflated, 6–8 × 6–8 mm (± bladderlike, papery); valves (retaining seeds after dehiscence), pubescent; replum elliptic to obovate, not constricted, as wide as or wider than fruit, apex obtuse; ovules 4–8 per ovary; style 4–5 mm, (sparsely pubescent or glabrous). |
Seeds | flattened. |
plump. |
2n | = 18, 36. |
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Physaria purpurea |
Physaria eburniflora |
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Phenology | Flowering Mar–Oct. | Flowering May–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 | Limestone hills, red soil, rocky calcareous slopes, clay depressions, granite and marble detritus |
Elevation | 400-2400 m (1300-7900 ft) | 1800-3000 m (5900-9800 ft) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora)
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WY |
Source | FNA vol. 7, p. 659. | FNA vol. 7, p. 635. |
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 | |
Name authority | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | Rollins: Brittonia 33: 333. (1981) |
Web links |