Physaria ovalifolia |
Physaria mcvaughiana |
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roundleaf bladderpod |
Mcvaugh's bladderpod |
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Habit | Perennials; caudex simple or branched, (thickened by persistent leaf bases); densely pubescent (foliage usually scabrous), trichomes (sessile or short-stalked), several-rayed, rays furcate near base, (usually strongly umbonate, roughly tuberculate, less so over umbo). | Perennials; caudex simple or branched, (sometimes enlarged); densely pubescent, trichomes (sessile), several-rayed, rays fused (webbed) most of their length, (umbonate, peltate, tuberculate throughout). | ||||
Stems | few to several from base, erect or outer decumbent, 0.5–2.5 dm. |
few to several from base, erect or outer ones decumbent, 0.5–4 dm. |
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Basal leaves | blade suborbicular to elliptic or ovate or deltate, 0.5–2(–6.5) cm, margins entire or shallowly dentate. |
(long-petiolate); blade elliptic to obovate or rhombic, 2–6(–9) cm, margins entire. |
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Cauline leaves | (proximal shortly petiolate, distal usually sessile); blade narrowly elliptic or obovate, (0.5–)1–2.5(–4) cm, margins entire. |
(sessile or shortly petiolate); blade oblanceolate to spatulate, 1–3 cm, (proximal broader), margins entire. |
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Racemes | compact, (± subumbellate to densely corymbiform, elongated or not). |
dense, (relatively short). |
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Flowers | sepals ± elliptic, 4.5–7(–8.5) mm, (median pair thickened apically); petals (sometimes white), suborbicular to obovate or obdeltate, 6.5–15 mm, (base narrowing to broad claw, apex sometimes emarginated). |
sepals elliptic or narrowly oblong, 4–5.4 mm, (tapered to apex); petals (white, base and claw yellow, conspicuously purple-veined), usually broadly obovate or rhombic, 6–10 mm, (± equal to blade, tapering to slender claw). |
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Fruiting pedicels | (usually spreading at right angles, sometimes nearly erect, ± straight), 5–15(–20) mm, (stout). |
(erect to spreading, ascending, or (proximal) horizontal, straight to slightly curved, sometimes loosely sigmoid), 6–12(–20) mm. |
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Fruits | (sessile or shortly stipitate, less than 1 mm), subglobose to broadly ellipsoid, inflated or slightly compressed (terete or subterete), (4–)5–8(–9) mm; valves (not retaining seeds after dehiscence), glabrous; replum as wide as or wider than fruit; ovules 8–16 per ovary; style 4–8(–9) mm. |
(sessile or substipitate, often reddish magenta), usually ovoid to subglobose, inflated, 4–6(–7) mm; valves (not retaining seeds after dehiscence), glabrous; replum as wide as or wider than fruit; septum perforate; ovules 8–12 per ovary; style 1.5–4 mm. |
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Seeds | flattened. |
somewhat flattened. |
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2n | = 12. |
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Physaria ovalifolia |
Physaria mcvaughiana |
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Phenology | Flowering mid Mar–Apr(-Aug). | |||||
Habitat | Stream bed gravels, rocky limestone slopes and hills, canyon bottoms and slopes, limestone rubble | |||||
Elevation | 1200-1600 m (3900-5200 ft) | |||||
Distribution |
CO; KS; NE; NM; OK; TX
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TX; Mexico (Coahuila) |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 7, p. 655. | FNA vol. 7, p. 650. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Lesquerella ovalifolia, Lesquerella engelmannii subsp. ovalifolia | Lesquerella mcvaughiana | ||||
Name authority | (Rydberg) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) | ||||
Web links |