Physaria parvula |
Physaria fendleri |
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pygmy bladderpod |
Fendler bladderpod, Fendler's bladderpod |
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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 branched, (sometimes woody at base); densely (silvery) pubescent, trichomes (sessile or short-stalked), several-rayed, rays not furcate, fused (webbed) ca. 1/2 their length, (tuberculate throughout or tubercles scarce or absent over center). |
Stems | few to several from base, erect, (unbranched, slender), 0.3–1.5(–3) dm. |
several from base, erect or laterally decumbent, (usually unbranched), (0.3–)0.5–2.5(–4) dm. |
Basal leaves | (tufted, erect); blade linear to very narrowly spatulate, 1–3(–4) cm, margins entire (involute). |
blade linear to somewhat elliptic, 1–4(–8) cm, margins entire or coarsely dentate. |
Cauline leaves | similar to basal. |
(shortly petiolate); blade usually linear to narrowly oblanceolate, rarely elliptic to rhombic, 0.5–2.5 cm, (base narrowing to petiole), margins entire or remotely dentate (sometimes involute). |
Racemes | relatively dense. |
loose to somewhat dense. |
Flowers | sepals (greenish yellow), elliptic, 3.5–7 mm; petals spatulate, 5–6 mm, (not clawed). |
sepals elliptic to oblong, 5–8 mm, (lateral pair not saccate, median pair often thickened apically, ± cucullate); petals (usually orange or orange-yellow at junction of blade and claw, sometimes also with orange guidelines), obdeltate to obovate, 8–12 mm, (claw relatively short). |
Fruiting pedicels | (ascending, curved or sigmoid), 2–10 mm. |
(divaricate-spreading to erect, usually straight or slightly curved, occasionally sigmoid), 8–20(–40) 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, broadly ellipsoid, or ovoid, not or slightly inflated, 5–8 mm, (firm, apex usually acute); valves (not retaining seeds after dehiscence, often reddish in age), glabrous throughout; replum as wide as or wider than fruit; ovules (12–)20–32(–40) per ovary; style (2–)3–6 mm. |
Seeds | flattened, (mucilaginous). |
flattened. |
2n | = 10, 20. |
= 12, 14, 24. |
Physaria parvula |
Physaria fendleri |
|
Phenology | Flowering May–Jul. | Flowering Mar–May. |
Habitat | Exposed windblown ridges, gravelly hills, open rocky knolls, gravelly hilltops, clay hillsides, granitic sand, reddish soil, sagebrush, mountain scrub, and pinyon-juniper areas | Limestone outcrops, gypseous hills, gravels, sandy washes, rocky slopes, bluffs, shallow drainage areas, plains and desert shrub areas |
Elevation | 1800-2800 m (5900-9200 ft) | 100-2000 m (300-6600 ft) |
Distribution |
CO; UT; WY
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AZ; CO; KS; NM; OK; TX; UT; Mexico (Chihuahua, Coahuila, Nuevo León)
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Discussion | In dry areas, Physaria fendleri may flower following suitable rains at any time of the year. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 7, p. 657. | FNA vol. 7, p. 636. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Lesquerella parvula, Lesquerella alpina subsp. parvula, Lesquerella alpina var. parvula | Vesicaria fendleri, Alyssum fendleri, Alyssum stenophyllum, Lesquerella fendleri, Lesquerella foliacea, Lesquerella praecox, Lesquerella stenophylla, Vesicaria stenophylla, Vesicaria stenophylla var. diffusa, Vesicaria stenophylla var. humilis, Vesicaria stenophylla var. procera |
Name authority | (Greene) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 323. (2002) |
Web links |