Physaria geyeri |
Physaria dornii |
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Geyer's bladderpod, Geyer's twin-pod |
Dorn's twinpod, tunp range twinpod |
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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; (compact); caudex simple, (stout); densely (silvery) pubescent throughout (except style), trichomes several-rayed, rays furcate, fused at base, (umbonate, tuberculate throughout). | ||||
Stems | several from base, decumbent, (arising laterally, unbranched), 1–3 dm. |
simple from base, erect, (arising from a condensed rosette), to 1 dm. |
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Basal leaves | (numerous); (petiole slender, rarely with a few broad teeth); blade obovate, 3–7 cm, margins entire. |
(ascending or erect); blade elliptic to oblanceolate to obovate, (usually curled from middle to apex), (1.5–)5–7 cm (width 12–20 mm), margins entire. |
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Cauline leaves | blade oblanceolate, 1.5–3 cm, margins entire. |
(1–5); blade oblanceolate, 1–2.5 cm, margins entire. |
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Racemes | loose. |
compact (or elongated in fruit, to 1 dm, barely exceeding leaves). |
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Flowers | sepals oblong, 5–7 mm; petals (yellow to purplish), spatulate, 8–12 mm. |
sepals (erect), oblong to linear or spatulate, 5.5–7 mm; petals spatulate, 10–14 mm, (claw undifferentiated from blade). |
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Fruiting pedicels | (ascending or spreading, slightly curved or sigmoid), 1–2 cm. |
(divaricate-ascending, slightly curved), 7–18 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. |
didymous, irregular, highly inflated, 8–11(–18) × 10–15 mm, (papery, basal sinus shallower than the deep apical sinus; valves retaining seeds after dehiscence); replum obovate, not constricted, 1–1.8 mm, apex obtuse, as wide as or wider than fruit; ovules (4–)8(–12) per ovary; style 4–6 mm, (glabrous). |
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Seeds | flattened, (oblong to elliptic, thin-margined or not). |
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Physaria geyeri |
Physaria dornii |
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Phenology | Flowering May–Jun. | |||||
Habitat | Calcareous shale, slopes, ridges | |||||
Elevation | 1900-2200 m (6200-7200 ft) | |||||
Distribution |
ID; MT; OR; WA
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WY |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (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. 634. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Vesicaria geyeri, Coulterina geyeri, Lesquerella geyeri | |||||
Name authority | (Hooker) A. Gray: Gen. Amer. Bor. 1: 162. (1848) | Lichvar: Brittonia 35: 150, figs. 1–3. (1983) | ||||
Web links |