Physaria parvula |
Physaria pachyphylla |
|
---|---|---|
pygmy bladderpod |
thick-leaf bladderpod |
|
Habit | Perennials; caudex (buried), usually branched, sometimes simple, (cespitose); densely pubescent, trichomes (appressed), 4–7-rayed, rays distinct, furcate or bifurcate near base. | Perennials; caudex usually simple, rarely branched, (loosely mounded, rosette-like growth); densely (silvery or gray) pubescent, trichomes (sessile), 5-rayed, rays bifurcate, slightly fused near base of main rays, (tuberculate throughout, less over umbo). |
Stems | few to several from base, erect, (unbranched, slender), 0.3–1.5(–3) dm. |
several from base, decumbent to prostrate, (well-exserted beyond basal leaves), 0.2–0.5 dm. |
Basal leaves | (tufted, erect); blade linear to very narrowly spatulate, 1–3(–4) cm, margins entire (involute). |
(petiole differentiated from blade); blade (slightly cupped, leathery, nearly 1 mm thick), oblanceolate to orbicular, 1.2–2 cm, margins entire, (apex acute). |
Cauline leaves | similar to basal. |
blade spatulate, similar to basal. |
Racemes | relatively dense. |
dense, (subumbellate). |
Flowers | sepals (greenish yellow), elliptic, 3.5–7 mm; petals spatulate, 5–6 mm, (not clawed). |
sepals (pale yellow), elliptic to oblong, 3.5–4.0 mm, (median pair somewhat thickened apically, cucullate); petals lingulate, 5–6 mm. |
Fruiting pedicels | (ascending, curved or sigmoid), 2–10 mm. |
(ascending, curved), 5–7 mm. |
Fruits | (erect), ovoid (or longer than broad), usually inflated, 4–5 mm, (apex acute, slightly flattened); valves pubescent, trichomes appressed; ovules 4–8 per ovary; style 2–4 mm. |
globose or ellipsoid, slightly inflated (with slight apical constriction), 3–6 mm; valves pubescent, trichomes closely appressed; ovules 8 per ovary; style 1–3 mm (shorter than mature fruit). |
Seeds | flattened, (mucilaginous). |
plump, (oblong). |
2n | = 10, 20. |
|
Physaria parvula |
Physaria pachyphylla |
|
Phenology | Flowering May–Jul. | Flowering Jun–Jul. |
Habitat | Exposed windblown ridges, gravelly hills, open rocky knolls, gravelly hilltops, clay hillsides, granitic sand, reddish soil, sagebrush, mountain scrub, and pinyon-juniper areas | Barren areas of mixed white, pink, or reddish limestone and diatomaceous earth |
Elevation | 1800-2800 m (5900-9200 ft) | 1300-1600 m (4300-5200 ft) |
Distribution |
CO; UT; WY
|
MT |
Discussion | Of conservation concern. Physaria pachyphylla is known from the Pryor Mountain Desert near the Wyoming state line. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 7, p. 657. | FNA vol. 7, p. 656. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Lesquerella parvula, Lesquerella alpina subsp. parvula, Lesquerella alpina var. parvula | |
Name authority | (Greene) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) | O’Kane & Grady: Novon 17: 187, fig. 4. (2007) |
Web links |