Claytonia megarhiza(synonym of Claytonia megarhiza var. nivalis) |
Claytonia cordifolia |
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alpine springbeauty |
broad leaf springbeauty, cordate-leaf spring beauty, heart-leaf spring-beauty |
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Habit | Plants perennial, with stout, woody caudices; periderm 5–12 mm. | Plants perennial, rhizomatous; rhizomes 4–8 mm diam.; periderm absent. |
Stems | 5–25 cm. |
5–30 cm. |
Leaves | 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. |
basal leaves petiolate, blade ovate to deltate or cordate, 2–7 × 1–5 cm; cauline leaves sessile, blade ovate, 1–4 cm. |
Inflorescences | multibracteate; bracts subtending pedicels, apex obtuse. |
ebracteate. |
Flowers | 12–20 mm diam; sepals 6–8 mm; petals white, pink, or rose, 5–20 × 3–8 mm; ovules 6. |
10–15 mm diam.; sepals 4–8 mm; petals white, 8–12 mm; ovules 6. |
Seeds | 2–3 mm diam., shiny and smooth; elaiosome 1 mm or less. |
(1–)6, 1–2 mm diam., shiny and smooth; elaiosome 1 mm or less. |
2n | = 12, 16, 24, 32, 34, 36. |
= 10, 20. |
Claytonia megarhiza |
Claytonia cordifolia |
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Phenology | Flowering May–Aug. | Flowering May–Sep. |
Habitat | Talus, scree, gravelly slopes | Meadows, seeps |
Elevation | 2000-4000 m (6600-13100 ft) | 500-2000 m (1600-6600 ft) |
Distribution |
CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT |
CA; ID; MT; NV; OR; UT; WA; BC
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Source | FNA vol. 4, p. 469. | FNA vol. 4. |
Parent taxa | Portulacaceae > Claytonia | Portulacaceae > Claytonia |
Sibling taxa | ||
Synonyms | C. arctica var. megarhiza, C. megarhiza var. bellidifolia, C. megarhiza var. nivalis | C. sibirica var. cordifolia, Montia cordifolia |
Name authority | (A. Gray) Parry ex S. Watson: Smithsonian Misc. Collect 258: 118. (1878) | S. Watson: Proc. Amer. Acad. Arts 17: 365. (1882) |
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