Physaria purpurea |
Physaria montana |
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rose bladderpod |
mountain 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, (often enlarged); densely pubescent, trichomes (sessile or short-stalked), 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, prostrate to erect, 0.5–2(–3.5) dm. |
Basal leaves | blade elliptic or obovate to oblong, 4–15 cm, margins entire, dentate, or lyrate-pinnatifid. |
blade suborbicular or obovate to elliptic, (1–)2–5(–7) cm, margins entire, sinuate, or shallowly dentate. |
Cauline leaves | (proximal often narrowed to short petiole, distal sessile); blade broadly elliptic to obovate or rhombic, 0.5–3(–5) cm, margins entire. |
(often secund, proximal shortly petiolate, distal sessile); blade linear to obovate or rhombic, 1–2.5(–4) cm, margins entire or shallowly dentate. |
Racemes | dense or slightly elongated. |
dense, compact, (usually 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, 5–8.5 mm, (lateral pair boat-shaped, saccate, median pair thickened apically, cucullate); petals (yellow to orange, sometimes fading purplish), narrowly spatulate or obovate, (6–)7.5–12 mm, (claw undifferentiated from blade, or gradually narrowed to claw, slightly expanded basally). |
Fruiting pedicels | (spreading or recurved, loosely sigmoid), 5–25 mm. |
(usually sharply sigmoid, rarely nearly divaricate-spreading and straight), 5–15(–20) 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. |
(erect), ellipsoid or ovoid, not or slightly obcompressed, (apex not compressed), (6–)7–12 mm; valves densely pubescent, sometimes sparsely pubescent inside; ovules (8–)12–20(–24) per ovary; style 3–7 mm, (sometimes pubescent). |
Seeds | flattened. |
flattened. |
2n | = 18, 36. |
= 10. |
Physaria purpurea |
Physaria montana |
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Phenology | Flowering Mar–Oct. | Flowering Apr–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 | Banks, rock outcrops, stony slopes and benchlands, from plains into mountains, in sagebrush, open scrub oak, pinyon-juniper woodland, ponderosa pine, Douglas fir on granitic, often gravelly, non-calcareous soils, rarely on calcareous soils |
Elevation | 400-2400 m (1300-7900 ft) | 1000-3300 m (3300-10800 ft) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora)
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AZ; CO; NE; NM; SD; WY
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Discussion | Physaria montana is a rather variable species that in southwestern Colorado morphologically approaches P. rectipes and in eastern Wyoming approaches P. curvipes; it is unusual in the genus for its frequent presence on igneous, non-calcareous soils. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 7, p. 659. | FNA vol. 7, p. 650. |
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 | Vesicaria montana, Alyssum grayanum, Lesquerella montana, Lesquerella montana var. suffruticosa, Lesquerella rosulata |
Name authority | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | (A. Gray) Greene: Fl. Francisc., 249. (1891) |
Web links |