Claytonia rosea |
Claytonia megarhiza |
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Madrean springbeauty, Rocky Mountain Spring beauty, western springbeauty |
alpine spring-beauty, fell-fields claytonia |
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Habit | Plants perennial, with globose tubers 20–100 mm; periderm 5–10 mm. | Plants perennial, with stout, woody caudices; periderm 5–12 mm. |
Stems | 2–15 cm. |
5–25 cm. |
Leaves | basal leaves sometimes absent, petiolate, blade linear to narrowly spatulate, 1–7 × 0.4–2 cm, apex acute to obtuse; cauline leaves petiolate, blade linear, 2–5 cm, apex acute to obtuse. |
basal leaves sessile, dilated at base into broad, succulent sheath, blade rhombic to oblanceolate, 2–10 × 0.4–2.8 cm, apex obtuse; cauline leaves sessile, blade oblanceolate, 2–10 × 2–5 mm. |
Inflorescences | multibracteate, rarely 1-bracteate; proximalmost bract leaflike, distal bracts reduced to membranous scales. |
multibracteate; bracts subtending pedicels, apex obtuse. |
Flowers | 8–14 mm diam.; sepals 3–5 mm; petals pink, rose, or magenta, 8–10 mm; ovules 6. |
12–20 mm diam; sepals 6–8 mm; petals white, pink, or rose, 5–20 × 3–8 mm; ovules 6. |
Seeds | 2–3 mm, shiny and smooth; elaiosome 1–2 mm. |
2–3 mm diam., shiny and smooth; elaiosome 1 mm or less. |
2n | = 16. |
= 12, 16, 24, 32, 34, 36. |
Claytonia rosea |
Claytonia megarhiza |
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Phenology | Flowering Feb–May. | Flowering May–Aug. |
Habitat | Hillsides and mesas of montane ponderosa and Chihuahuan pine and oak belts | Talus, scree, gravelly slopes |
Elevation | 800-2400 m (2600-7900 ft) | 2000-4000 m (6600-13100 ft) |
Distribution |
AZ; CO; NM; UT; Mexico
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CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT
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Discussion | Claytonia rosea is morphologically distinct from C. lanceolata based on early cytological and ecological study of the two species by D. K. Halleck and D. Wiens (1966) and the author’s review of type material. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 4, p. 472. | FNA vol. 4, p. 469. |
Parent taxa | Portulacaceae > Claytonia | Portulacaceae > Claytonia |
Sibling taxa | ||
Synonyms | C. lanceolata var. rosea | C. arctica var. megarhiza, C. megarhiza var. bellidifolia, C. megarhiza var. nivalis |
Name authority | Rydberg: Bull. Torrey Bot. Club 31: 404. (1904) | (A. Gray) Parry ex S. Watson: Smithsonian Misc. Collect 258: 118. (1878) |
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