Physaria gracilis |
Physaria geyeri |
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spreading bladderpod |
Geyer's bladderpod, Geyer's twin-pod |
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Habit | Annuals or biennials; (delicate, wiry); with a fine taproot; pubescent, trichomes (sessile or subsessile), 4–7-rayed, rays distinct, usually furcate, occasionally bifurcate, (smooth to somewhat tuberculate). | Perennials; caudex usually simple, (cespitose); (silvery) pubescent throughout, trichomes (sessile), 6–8-rayed, rays mostly furcate, (tuberculate to nearly smooth). | ||||||||
Stems | simple to several from base, erect, often outer decumbent, (unbranched or branched distally), 1–7 dm. |
several from base, decumbent, (arising laterally, unbranched), 1–3 dm. |
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Basal leaves | blade oblanceolate to elliptic, 1.5–8(–11.5) cm, margins lyrate-pinnatifid to dentate or repand, (abaxial surface densely pubescent, adaxial sparsely pubescent). |
(numerous); (petiole slender, rarely with a few broad teeth); blade obovate, 3–7 cm, margins entire. |
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Cauline leaves | (proximal petiolate, distal sessile); blade oblanceolate to oblong, 1–7 cm, margins dentate to repand. |
blade oblanceolate, 1.5–3 cm, margins entire. |
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Racemes | loose, (elongated). |
loose. |
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Flowers | sepals elliptic or broadly ovate, 3–6.5(–8) mm, (median pair slightly thickened apically, cucullate); petals (yellow to orange), broadly obovate, 6–11 mm, (narrowing gradually to short claw). |
sepals oblong, 5–7 mm; petals (yellow to purplish), spatulate, 8–12 mm. |
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Fruiting pedicels | (usually divaricate-spreading, sometimes horizontal or shallowly recurved, straight or slightly curved), (7–)10–20(–25) mm, (slender or stout). |
(ascending or spreading, slightly curved or sigmoid), 1–2 cm. |
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Fruits | (stipitate or subsessile, gynophore 1–2 mm), globose, subglobose, obpyriform, or obovoid, not or slightly inflated, 3–9 mm; valves (not retaining seeds after dehiscence), glabrous throughout or sparsely pubescent inside; replum as wide as or wider than fruit; ovules 8–20(–28) per ovary; style 2–4.5 mm. |
obcordate, angustiseptate, somewhat inflated, (not bladdery), 5–7 × 6–9 mm, (papery, basal sinus absent, apical sinus broad and open); valves (retaining seeds after dehiscence), loosely pubescent, trichomes spreading; replum ovate, 5–7 mm, as wide as or wider than fruit, apex acute or obtuse; ovules 4–6 per ovary; style 5–7 mm. |
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Seeds | slightly flattened. |
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Physaria gracilis |
Physaria geyeri |
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Distribution |
AL; IA; IL; KS; LA; MO; MS; OK; TN; TX
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ID; MT; OR; WA
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. 641. | FNA vol. 7, p. 638. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Vesicaria gracilis, Alyssum gracile, Lesquerella gracilis | Vesicaria geyeri, Coulterina geyeri, Lesquerella geyeri | ||||||||
Name authority | (Hooker) O’Kane & Al-Shehbaz: Novon 12: 323. (2002) | (Hooker) A. Gray: Gen. Amer. Bor. 1: 162. (1848) | ||||||||
Web links |