Claytonia rubra |
Claytonia megarhiza |
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cushion miner's-lettuce, erubescent lettuce, erubescent miner's-lettuce, red miners lettuce, red stem spring beauty, red-stem miner's lettuce |
alpine spring-beauty, fell-fields claytonia |
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Habit | Plants annual, sometimes overwintering and biennial, with minute, shortened, tuberous bodies; periderm absent. | Plants perennial, with stout, woody caudices; periderm 5–12 mm. | ||||
Stems | 1–10 cm. |
5–25 cm. |
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Leaves | basal leaves in flattened to suberect rosettes, 0.5–6 cm, blade with strong red pigmentation even in juvenile plants, narrowly rhombic to ovate, spatulate, or trullate, 0.5–1.5 × 0.5–1 cm, apex obtuse; cauline leaves distinct or connate on 1 side or perfoliate, sessile, blade ovate. |
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. |
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Inflorescences | 1-bracteate; bract leaflike, 0.5–15 mm. |
multibracteate; bracts subtending pedicels, apex obtuse. |
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Flowers | 2–5 mm diam.; sepals 1.5–2.5 mm; petals 2–3 mm, pinkish white to white; ovules 3. |
12–20 mm diam; sepals 6–8 mm; petals white, pink, or rose, 5–20 × 3–8 mm; ovules 6. |
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Seeds | 2–3 mm diam., shiny and smooth; elaiosome 1–2 mm. |
2–3 mm diam., shiny and smooth; elaiosome 1 mm or less. |
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2n | = 12, 24, 36. |
= 12, 16, 24, 32, 34, 36. |
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Claytonia rubra |
Claytonia megarhiza |
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Phenology | Flowering May–Aug. | |||||
Habitat | Talus, scree, gravelly slopes | |||||
Elevation | 2000-4000 m (6600-13100 ft) | |||||
Distribution |
CA; CO; ID; MT; NV; OR; SD; UT; WA; WY; BC
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CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 4, p. 473. | FNA vol. 4, p. 469. | ||||
Parent taxa | Portulacaceae > Claytonia | Portulacaceae > Claytonia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Montia rubra | C. arctica var. megarhiza, C. megarhiza var. bellidifolia, C. megarhiza var. nivalis | ||||
Name authority | (Howell) Tidestrom: Contr. U.S. Natl. Herb. 25: 188. (1925) | (A. Gray) Parry ex S. Watson: Smithsonian Misc. Collect 258: 118. (1878) | ||||
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