Claytonia rubra |
Claytonia tuberosa |
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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 |
Beringian Spring beauty, tuberous spring-beauty |
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Habit | Plants annual, sometimes overwintering and biennial, with minute, shortened, tuberous bodies; periderm absent. | Plants perennial, with globose tubers 10–30 mm, rarely rhizomatous; periderm 5–20 mm. | ||||
Stems | 1–10 cm. |
15–25 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 usually absent or few, blade linear, 4–15 × 0.4–0.8 cm; cauline leaves sessile, blade linear to lanceolate, 2–7 × 0.2–0.6 cm, tapered to slender base, apex acute. |
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Inflorescences | 1-bracteate; bract leaflike, 0.5–15 mm. |
1–multibracteate; proximalmost bract leaflike, distal bracts minute, membranous scales. |
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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 4–6 mm; petals white with yellow blotch at base, 6–14 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. |
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2n | = 12, 24, 36. |
= 16, 24, 30. |
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Claytonia rubra |
Claytonia tuberosa |
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Phenology | Flowering May–Aug. | |||||
Habitat | Wet to moist stony tundra slopes | |||||
Elevation | 0-1200 m (0-3900 ft) | |||||
Distribution |
CA; CO; ID; MT; NV; OR; SD; UT; WA; WY; BC
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AK; BC; NT; YT; Asia (Siberia) |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Claytonia czukczorum was included by S. L. Welsh (1974) and E. Hultén (1968) as a variety of C. tuberosa. Based upon the author’s study of type material, it is grouped with C. multiscapa. (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. 475. | ||||
Parent taxa | Portulacaceae > Claytonia | Portulacaceae > Claytonia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Montia rubra | C. caroliniana var. tuberosa | ||||
Name authority | (Howell) Tidestrom: Contr. U.S. Natl. Herb. 25: 188. (1925) | Pallas ex Willdenow: in J. J. Roemer et al., Syst. Veg. 5: 436. (1819) | ||||
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