Physaria newberryi |
Physaria garrettii |
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Newberry twinpod, Newberry's twinpod |
Garrett's 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 simple or branched; densely pubescent, trichomes (sessile), 4–7-rayed, rays furcate or bifurcate, (smooth or, rarely, finely tuberculate). | ||||
Stems | several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm. |
simple or several from base, spreading, (unbranched, sparsely pubescent), to 1.5 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 narrowly elliptic or obovate, 1–3(–4) cm, margins entire or nearly so. |
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Cauline leaves | blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire. |
(sessile or shortly petiolate); blade narrowly obovate or oblanceolate, 0.4–1.2 cm, margins entire. |
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Racemes | dense (elongated or not in fruit, 2.5–8.5(–10) cm). |
loose, (few-flowered). |
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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 linear, lanceolate, or elliptic, 3.5–6.5 mm, (median pair thickened apically, cucullate); petals oblanceolate, 5.5–9(–10) mm. |
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Fruiting pedicels | (divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels). |
(spreading, straight or slightly curved), 4–7 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). |
globose or subglobose, not or slightly compressed, 3.5–4.3 mm; valves densely pubescent, trichomes spreading, 3–6-rayed, (appearing shaggy); ovules 4–8 per ovary; style 4.5–7 mm. |
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Seeds | slightly flattened, (ovate). |
slightly flattened, (suborbicular). |
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Physaria newberryi |
Physaria garrettii |
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Phenology | Flowering Jun–Aug. | |||||
Habitat | Rock crevices, rocky slopes, ridges | |||||
Elevation | 3000-3700 m (9800-12100 ft) | |||||
Distribution |
AZ; NM; NV; UT
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UT |
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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.) |
Of conservation concern. Physaria garrettii is known from the area of the Wasatch Mountains. (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. 638. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | P. didymocarpa var. newberryi | Lesquerella garrettii | ||||
Name authority | A. Gray: in J. C. Ives, Rep. Colorado R. 4: 6. (1861) | (Payson) O’Kane & Al-Shehbaz: Novon 12: 323. (2002) | ||||
Web links |