Physaria congesta |
Physaria dornii |
|
---|---|---|
Dudley bluffs bladderpod |
Dorn's twinpod, tunp range twinpod |
|
Habit | Perennials; (relatively diminutive, strongly condensed); caudex (buried), simple or branched, (stout, thatched, thickened with persistent leaf bases); densely pubescent, trichomes (appressed, stiff), 4- or 5-rayed, rays fused at center, (mostly bifurcate). | Perennials; (compact); caudex simple, (stout); densely (silvery) pubescent throughout (except style), trichomes several-rayed, rays furcate, fused at base, (umbonate, tuberculate throughout). |
Stems | simple or few from base, decumbent to ascending, (arising laterally from a tight hemispherical tuft of leaves), to 0.15 dm. |
simple from base, erect, (arising from a condensed rosette), to 1 dm. |
Basal leaves | similar to cauline, (erect, surfaces silvery). |
(ascending or erect); blade elliptic to oblanceolate to obovate, (usually curled from middle to apex), (1.5–)5–7 cm (width 12–20 mm), margins entire. |
Cauline leaves | (ascending, subsessile); blade linear-oblanceolate, (0.6–)0.8–1.3(–1.5) cm, margins entire, (apex acute to narrowly obtuse). |
(1–5); blade oblanceolate, 1–2.5 cm, margins entire. |
Racemes | strongly congested, (often sessile or nearly so, lateral to leaves). |
compact (or elongated in fruit, to 1 dm, barely exceeding leaves). |
Flowers | sepals (loosely erect), narrowly oblong, 3–4 mm; petals spatulate, 5–6 mm. |
sepals (erect), oblong to linear or spatulate, 5.5–7 mm; petals spatulate, 10–14 mm, (claw undifferentiated from blade). |
Fruiting pedicels | (erect or ascending, straight to slightly curved), 3–6 mm. |
(divaricate-ascending, slightly curved), 7–18 mm. |
Fruits | ovate, compressed (latiseptate) on margins and apically, 4–5 mm; valves pubescent, trichomes densely appressed; ovules 4 per ovary; style 1–1.5 mm. |
didymous, irregular, highly inflated, 8–11(–18) × 10–15 mm, (papery, basal sinus shallower than the deep apical sinus; valves retaining seeds after dehiscence); replum obovate, not constricted, 1–1.8 mm, apex obtuse, as wide as or wider than fruit; ovules (4–)8(–12) per ovary; style 4–6 mm, (glabrous). |
Seeds | plump. |
flattened, (oblong to elliptic, thin-margined or not). |
Physaria congesta |
Physaria dornii |
|
Phenology | Flowering Apr–May. | Flowering May–Jun. |
Habitat | Barren knolls with pinyon-juniper | Calcareous shale, slopes, ridges |
Elevation | 1800-2100 m (5900-6900 ft) | 1900-2200 m (6200-7200 ft) |
Distribution |
CO |
WY |
Discussion | Of conservation concern. Physaria congesta is found on white, decomposed shale of the Thirteenmile Creek Tongue of the Green River Formation. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 632. | FNA vol. 7, p. 634. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Lesquerella congesta | |
Name authority | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) | Lichvar: Brittonia 35: 150, figs. 1–3. (1983) |
Web links |