Physaria floribunda |
Physaria mcvaughiana |
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point-tip twinpod |
Mcvaugh's bladderpod |
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Habit | Perennials; caudex branched, (cespitose); (silvery) pubescent throughout, trichomes several-rayed, rays mostly furcate, (arms of unequal lengths, finely tuberculate). | 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 | several from base, erect or lateral decumbent, (unbranched), 1–2 dm. |
few to several from base, erect or outer ones decumbent, 0.5–4 dm. |
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Basal leaves | (petiole usually winged); blade broadly oblanceolate, 3–8 cm, margins usually dentate or pinnatifid, rarely subentire, (terminal lobe acute or obtuse, not rounded). |
(long-petiolate); blade elliptic to obovate or rhombic, 2–6(–9) cm, margins entire. |
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Cauline leaves | blade spatulate to linear-oblanceolate, 1–3 cm, margins usually entire, rarely toothed, (apex acute). |
(sessile or shortly petiolate); blade oblanceolate to spatulate, 1–3 cm, (proximal broader), margins entire. |
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Racemes | loose (and greatly elongated in fruit) to congested. |
dense, (relatively short). |
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Flowers | sepals linear-oblong, 5–7 mm; petals spatulate, 9–11 mm. |
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 | (recurved), 6–15 mm. |
(erect to spreading, ascending, or (proximal) horizontal, straight to slightly curved, sometimes loosely sigmoid), 6–12(–20) mm. |
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Fruits | (usually pendent on arching pedicels, less frequently widely divergent), irregular in shape, (base obtuse or slightly cordate, apex deeply and broadly notched), not strongly inflated, 8–11 × 8–12 mm, (papery); valves retaining seeds after dehiscence; replum linear-oblong, constricted, 2.5–4 mm, as wide as or wider than fruit, apex obtuse; ovules 4 per ovary; style 5–8 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 floribunda |
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; NM
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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. 637. | FNA vol. 7, p. 650. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Lesquerella mcvaughiana | |||||
Name authority | Rydberg: Bull. Torrey Bot. Club 28: 279. (1901) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 325. (2002) | ||||
Web links |