Physaria purpurea |
Physaria pruinosa |
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rose bladderpod |
frosty bladderpod, Pagosa bladderpod |
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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 simple or branched, (covered with persistent leaf bases); densely pubescent, trichomes (sessile or subsessile), 4–7-rayed, rays furcate or bifurcate, (tuberculate throughout). |
Stems | simple from base, erect, (unbranched, sparsely leaved), to 7 dm. |
simple or several from base, decumbent or erect, (unbranched), to 2 dm. |
Basal leaves | blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid. |
(petiole sharply differentiated from blade, slender); blade suborbicular or obovate to rhombic, 4–8 cm, (base abruptly narrowed to petiole), margins entire, sinuate, or shallowly dentate, (abaxial surface densely pubescent, adaxial lightly pubescent). |
Cauline leaves | (proximal often narrowed to short petiole, distal sessile); blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire. |
(proximal petiolate, distal sessile); blade obovate to rhombic, 0.8–2.3 cm, margins entire or shallowly toothed. |
Racemes | dense or slightly elongated. |
dense, (somewhat elongated in fruit). |
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 elliptic or oblong, ca. 6 mm, (lateral pair not saccate or subsaccate, cucullate, median pair thickened apically, cucullate); petals spatulate, ca. 9 mm, (claw expanded at base). |
Fruiting pedicels | (spreading or recurved, loosely sigmoid), 5–25 mm. |
(horizontal to ascending, sigmoid or slightly curved), 8–11 mm, (stout). |
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. |
(sessile or substipitate, often becoming copper-red in age), subglobose or ellipsoid, inflated, 6–9 mm, (firm, glossy); valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules 4–8(–12) per ovary; style 3.5–7 mm. |
Seeds | flattened. |
somewhat flattened. |
2n | = 18, 36. |
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Physaria purpurea |
Physaria pruinosa |
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Phenology | Flowering Mar–Oct. | Flowering May–Jun(-Aug). |
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 | Mancos slate or shale, meadows, gentle slopes, edges of ponderosa pine stands |
Elevation | 400-2400 m (1300-7900 ft) | 2100-2600 m (6900-8500 ft) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora)
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CO; NM |
Discussion | Of conservation concern. The one New Mexico population is near the border with Colorado, in Rio Arriba County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 7, p. 659. | FNA vol. 7, p. 658. |
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 | Lesquerella pruinosa |
Name authority | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | (Greene) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) |
Web links |