Physaria geyeri |
Physaria pinetorum |
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Geyer's bladderpod, Geyer's twin-pod |
White Mountain bladderpod |
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Habit | Perennials; caudex usually simple, (cespitose); (silvery) pubescent throughout, trichomes (sessile), 6–8-rayed, rays mostly furcate, (tuberculate to nearly smooth). | Perennials; caudex simple or branched; densely pubescent, trichomes (sessile or short-stalked), 6–8-rayed, rays furcate or bifurcate, (tuberculate, less so on outer layers). | ||||
Stems | several from base, decumbent, (arising laterally, unbranched), 1–3 dm. |
simple or few from base, ascending to erect, (0.5–)1–2(–3.5) dm. |
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Basal leaves | (numerous); (petiole slender, rarely with a few broad teeth); blade obovate, 3–7 cm, margins entire. |
(petiole tapering to blade); blade rhombic to elliptic and irregularly angular, sometimes spatulate to oblanceolate, 1.5–7.5(–10) cm, margins entire. |
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Cauline leaves | blade oblanceolate, 1.5–3 cm, margins entire. |
(not or loosely overlapping, petiolate or distal sessile); blade spatulate to oblanceolate, 1–4 cm, margins entire. |
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Racemes | loose. |
crowded, elongated. |
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Flowers | sepals oblong, 5–7 mm; petals (yellow to purplish), spatulate, 8–12 mm. |
sepals ovate, oblong, or elliptic 4–7.5 mm, (median pair thickened apically, cucullate); petals spatulate or broadly cuneate, 6–13 mm, (claw slightly expanded at base). |
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Fruiting pedicels | (ascending or spreading, slightly curved or sigmoid), 1–2 cm. |
(ascending, curved or sigmoid), 6–12(–20) mm. |
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Fruits | 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. |
(substipitate), globose or obovoid to ellipsoid, sometimes slightly obcompressed, 4–9 mm; valves (not retaining seeds after dehiscence), glabrous throughout; replum as wide as or wider than fruit; ovules 4–24 per ovary; style (2–)4–7 mm. |
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Seeds | flattened. |
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2n | = 10. |
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Physaria geyeri |
Physaria pinetorum |
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Phenology | Flowering Apr–Jul. | |||||
Habitat | Scrub oak, pinyon-juniper woodland, open ponderosa pine forests, these sometimes mixed with Douglas fir, white pine, white fir, Engelmann spruce, or Gambel oak, on limestone-derived or otherwise basic soils, often in rock crevices | |||||
Elevation | 1400-2900 (-3400) m (4600-9500 (-11200) ft) | |||||
Distribution |
ID; MT; OR; WA
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AZ; NM
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Physaria pinetorum with reduced forms are found at high elevations; in disturbed, moist soils plants can become quite large, as in the Manzano Mountains. Densely cespitose plants with crowded racemes not exceeding the basal leaves are found at the crest (3200–3400 m) of the Sandia Mountains, New Mexico. These probably represent an undescribed taxon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 7, p. 638. | FNA vol. 7, p. 658. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Vesicaria geyeri, Coulterina geyeri, Lesquerella geyeri | Lesquerella pinetorum | ||||
Name authority | (Hooker) A. Gray: Gen. Amer. Bor. 1: 162. (1848) | (Wooton & Standley) O’Kane & Al-Shehbaz: Novon 12: 327. (2002) | ||||
Web links |