Physaria ovalifolia |
Physaria globosa |
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roundleaf bladderpod |
globe 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). | Biennials or perennials; caudex branched, (± woody); densely pubescent, trichomes (sessile), 3–6-rayed, rays distinct and simple or furcate, (in 2 layers, lower layer umbonate, smooth to finely tuberculate, some often with a U-shaped notch). | ||||
Stems | few to several from base, erect or outer decumbent, 0.5–2.5 dm. |
several from base, erect, (arising among leaves of an elongated main axis), to 5 dm (± equal). |
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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. |
(shortly petiolate); blade obovate to oblanceolate, (1.5–)2.5–5(–6) cm, margins entire, sinuate to shallowly toothed, or pinnatifid. |
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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 oblong, 1.3–3(–4) cm, (base cuneate), margins entire or repand to dentate. |
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Racemes | compact, (± subumbellate to densely corymbiform, elongated or not). |
dense. |
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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 obovate, 2.6–4.1 mm, (median pair thickened apically, cucullate); petals (bright yellow), obovate, 3.5–6.5(–7.5) mm, (margins sinuate). |
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Fruiting pedicels | (usually spreading at right angles, sometimes nearly erect, ± straight), 5–15(–20) mm, (stout). |
(usually spreading horizontally, straight), 7–14(–21) 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); globose, often slightly compressed apically, (1–)2–3 mm; valves sparsely pubescent, sometimes pubescent inside, trichomes spreading, 3–5-rayed; ovules 4 per ovary; style 2–3.5(–4) mm. |
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Seeds | flattened. |
flattened or plump, (often outer surface hemispherical, inner surface flattened, or both surfaces rounded). |
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2n | = 14. |
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Physaria ovalifolia |
Physaria globosa |
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Phenology | Flowering Mar–May. | |||||
Habitat | Open rocky areas, shale at cliff bases, open talus, ledges, open cedar glades | |||||
Elevation | 100-300 m (300-1000 ft) | |||||
Distribution |
CO; KS; NE; NM; OK; TX
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IN; KY; TN |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Physaria globosa is possibly introduced in Indiana. A report for Ohio was based on a collection by “Jones,” but that specimen cannot be located. (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. 639. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Lesquerella ovalifolia, Lesquerella engelmannii subsp. ovalifolia | Vesicaria globosa, Alyssum globosum, Alyssum shortii, Lesquerella globosa | ||||
Name authority | (Rydberg) O’Kane & Al-Shehbaz: Novon 12: 326. (2002) | (Desvaux) O’Kane & Al-Shehbaz: Novon 12: 323. (2002) | ||||
Web links |