Physaria pruinosa |
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frosty bladderpod, Pagosa bladderpod |
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Habit | 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 or several from base, decumbent or erect, (unbranched), to 2 dm. |
Basal leaves | (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 petiolate, distal sessile); blade obovate to rhombic, 0.8–2.3 cm, margins entire or shallowly toothed. |
Racemes | dense, (somewhat elongated in fruit). |
Flowers | 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 | (horizontal to ascending, sigmoid or slightly curved), 8–11 mm, (stout). |
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 | somewhat flattened. |
Physaria pruinosa |
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Phenology | Flowering May–Jun(-Aug). |
Habitat | Mancos slate or shale, meadows, gentle slopes, edges of ponderosa pine stands |
Elevation | 2100-2600 m (6900-8500 ft) |
Distribution |
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.) |
Source | FNA vol. 7, p. 658. |
Parent taxa | |
Sibling taxa | |
Synonyms | Lesquerella pruinosa |
Name authority | (Greene) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) |
Web links |