Lithophragma parviflorum |
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pink woodland star, prairie star, small-flower fringecup, small-flower prairie star, small-flower woodland-star |
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Habit | Plants slender. |
Flowering stems | simple, 20–50 cm. |
Leaves | in basal rosette and cauline, basal mostly 3-lobed, cauline (2–3), 3-foliolate, reduced, similar to basal (except lobes longer); stipules large, decurrent on petiole base, (margins fimbriate); petiole to 6 cm; blade dark green, orbiculate, (base cuneate), surfaces nearly glabrous or sparsely to densely hairy. |
Inflorescences | 2–3, nodding, 4–14-flowered racemes, simple. |
Pedicels | equaling or shorter than hypanthium. |
Flowers | deciduous if unfertilized, not fragrant, horizontal; hypanthium obconic-elongate at anthesis, becoming very elongate in fruit, open at throat, (length 2 times diam.); sepals erect, triangular; petals (exserted), widely spreading, white or pink, often with prominent venation, obovate-rhombic, narrowly clawed, deeply 3-lobed, (usually with prominent sinuses extending 1/2+ to base), 7–16 mm, ultimate margins entire; ovary 1/2+ inferior; styles included in fruit; stigma papillae in narrow subapical band. |
Seeds | 0.5–0.6 mm, wrinkled or smooth. |
2n | = 14, 21, 28, 35. |
Lithophragma parviflorum |
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Phenology | Flowering Mar–Aug. |
Habitat | Coastal bluffs, gravel prairies and rocky meadows, open forests, shrublands, and grasslands, subalpine regions, commonly with Lithophragma glabrum and L. tenellum |
Elevation | 200-3100 m [700-10200 ft] |
Distribution |
CA; CO; ID; MT; NE; NV; OR; SD; UT; WA; WY; AB; BC
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Discussion | Lithophragma parviflorum is easily identified throughout its range, although morphological variation is apparent when comparing specimens from different habitats and elevations in western North America. Some authors treat L. trifoliatum as a variety of L. parviflorum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 80. |
Parent taxa | |
Sibling taxa | |
Synonyms | Tellima parviflora, L. anemonoides, L. austromontanum, Pleurendotria reniformis |
Name authority | (Hooker) Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 584. 1840 (as parviflora) , |
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