Physaria newberryi |
Physaria valida |
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Newberry twinpod, Newberry's twinpod |
strong bladderpod |
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Habit | Perennials; caudex simple or branched, (branches often covered with persistent leaf bases, cespitose); densely (silvery) pubescent, trichomes rays fused at least 1/2 their length. | Perennials; caudex branched, (thickened); densely pubescent, trichomes (sessile), several-rayed, rays furcate or bifurcate, usually fused toward base, (strongly tuberculate). | ||||
Stems | several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm. |
several from base, erect or outer decumbent, (unbranched), to 2 dm. |
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Basal leaves | (ascending to erect, petiole slender); blade oblanceolate to obovate, 3–8 cm, (base tapering to petiole), margins incised or dentate with broad teeth, (apex acute to obtuse). |
blade elliptic to lanceolate or obovate, 3–8 cm, margins entire. |
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Cauline leaves | blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire. |
(proximal shortly petiolate or sessile, distal sessile); blade elliptic or obovate, to 2 cm, margins entire. |
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Racemes | dense (elongated or not in fruit, 2.5–8.5(–10) cm). |
dense. |
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Flowers | sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate); petals spatulate to narrowly oblanceolate, 7–10(–12) mm. |
sepals narrowly elliptic or oblong, 4.5–5.3 mm, (tapering to the somewhat thickened, cucullate apex, lateral pair subsaccate); petals (bright yellow), lingulate or broadly obovate, 7.5–8.5 mm, (narrowing to broad claw, joining in an arch, margins lacerate). |
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Fruiting pedicels | (divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels). |
(divaricate-ascending to horizontal, straight to loosely curved), to 15 mm. |
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Fruits | didymous, sides curved and angular, highly inflated, 6–16 × 8–12 mm, (papery, apical sinus broad and concave); valves (retaining seeds after dehiscence, distinctly 2-keeled on side away from replum), pubescent, trichomes appressed; replum linear to linear-lanceolate, as wide as or wider than fruit, apex acute; ovules 4–8 per ovary; style 2–9 mm, (usually not exceeding sinus). |
(sessile or substipitate), suborbicular to broadly ovate or ellipsoid, slightly compressed, 6–8 mm; valves pubescent; ovules 12–22 per ovary; style 2–3 mm. |
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Seeds | slightly flattened, (ovate). |
flattened. |
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2n | = 10. |
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Physaria newberryi |
Physaria valida |
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Phenology | Flowering Apr–May. | |||||
Habitat | Limestone soils, steep slopes, roadcuts, open woods | |||||
Elevation | 1900-2200 m (6200-7200 ft) | |||||
Distribution |
AZ; NM; NV; UT
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NM; TX |
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Discussion | Subspecies 2 (2 in the flora). Physaria newberryi, with its unusual fruits, can be confused with 15. P. chambersii. In P. chambersii, the sides of the fruit are flat, the style always exceeds the top, or shoulders, of the fruit, and shoulders form an angle that does not curve in toward the style. In P. newberryi, the sides of the fruit are concave, the styles are shorter than shoulders of the silicle (except in subsp. yesicola), and shoulders of the silicle form a curved, inward arching crown on the fruit. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Physaria valida is known from the Sacramento and White mountains of south central New Mexico, and southward through the Guadalupe Mountains to Hudspeth County, Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 7, p. 652. | FNA vol. 7, p. 664. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | P. didymocarpa var. newberryi | Lesquerella valida, Lesquerella lepidota | ||||
Name authority | A. Gray: in J. C. Ives, Rep. Colorado R. 4: 6. (1861) | (Greene) O’Kane & Al-Shehbaz: Novon 12: 328. (2002) | ||||
Web links |