Physaria pycnantha |
Physaria pruinosa |
|
---|---|---|
mountain-view bladderpod |
frosty bladderpod, Pagosa bladderpod |
|
Habit | Perennials; caudex branched, (densely cespitose and forming hemispheric mounds); densely pubescent, trichomes 5-rayed, rays bifurcate near base, fused at base, (strongly tuberculate throughout). | 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 | few to several from base, erect, (usually exceeding basal leaves), 0.3–0.7 dm. |
simple or several from base, decumbent or erect, (unbranched), to 2 dm. |
Basal leaves | blade linear-spatulate, 1.5–4 cm, (base narrowed gradually to petiole), margins entire. |
(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 | blade spatulate, similar to basal. |
(proximal petiolate, distal sessile); blade obovate to rhombic, 0.8–2.3 cm, margins entire or shallowly toothed. |
Racemes | crowded in distal 1/3, (4–10-flowered). |
dense, (somewhat elongated in fruit). |
Flowers | sepals (pale yellow), oblong to elliptic, 3–4 mm, (median pair usually thickened apically, cucullate); petals (sometimes with slight tinge of orange basally), lingulate, 4–6 mm. |
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 | (loosely to strongly sigmoid), 6–10 mm. |
(horizontal to ascending, sigmoid or slightly curved), 8–11 mm, (stout). |
Fruits | ellipsoid, slightly inflated (somewhat latiseptate), 4–5 mm, (apex acute); valves pubescent, trichomes erect, appearing slightly shaggy; ovules 4–8 per ovary; styles 2.5–3 mm, (shorter than mature fruits). |
(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, convex on outer side. |
somewhat flattened. |
Physaria pycnantha |
Physaria pruinosa |
|
Phenology | Flowering late May–Jun(-Jul). | Flowering May–Jun(-Aug). |
Habitat | Dry, windswept knolls of limestone gravel, with other cushion-forming plants | Mancos slate or shale, meadows, gentle slopes, edges of ponderosa pine stands |
Elevation | 1600-2300 m (5200-7500 ft) | 2100-2600 m (6900-8500 ft) |
Distribution |
ID; MT
|
CO; NM |
Discussion | Physaria pycnantha is morphologically similar to 56. P. nelsonii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 7, p. 659. | FNA vol. 7, p. 658. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Lesquerella pruinosa | |
Name authority | Grady & O’Kane: Novon 17: 188, fig. 5. (2007) | (Greene) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) |
Web links |