Claytonia perfoliata |
Claytonia arctica |
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Indian lettuce, miner's-lettuce, miner's-lettuce spring-beauty, winter purslane |
arctic claytonia, arctic springbeauty |
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Habit | Plants annual, with minute, tuberous bodies; periderm absent. | Plants perennial, with stout to slender, often fusiform, woody caudices; periderm 1–12 mm. | ||||||||
Stems | 5–50 cm. |
1–10 cm. |
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Leaves | basal leaves in suberect to erect, seldom flattened rosettes, petiolate, 1–30 cm, blade often with weak red pigmentation, broadly rhombic to deltate or reniform, 1–7 × 0.5–5(–6) cm, apex obtuse to apiculate, mucro 1–3 mm; cauline leaves sessile, blade perfoliate or cleft or notched, 10 cm diam. or less. |
basal leaves petiolate, often dilated at base, blade spatulate to elliptic, 2–15 × 0.5–1 cm, thinly herbaceous, apex obtuse; cauline leaves sessile, blade elliptic or oval, 0.5–2 × 0.5–1 cm. |
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Inflorescences | 1-bracteate; bract leaflike, 0.5–15 mm. |
ebracteate. |
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Flowers | 3–10 mm; sepals 1.5–4 mm; petals pink or white, 2–5 mm; ovules 3. |
12–20 mm diam.; sepals 6–8 mm; petals yellow or white with yellow blotch at base, 10–12 × 3–8 mm; ovules 6. |
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Seeds | 2–5 mm, shiny and smooth; elaiosome 1–3 mm. |
2–3 mm diam., shiny and smooth to tuberculate; elaiosome 1–2 mm. |
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2n | = 12, 24, 36, 48, 60. |
= 10. |
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Claytonia perfoliata |
Claytonia arctica |
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Phenology | Flowering Jun–Jul. | |||||||||
Habitat | Snow beds in talus, rocks, and gravels | |||||||||
Elevation | 0-2000 m (0-6600 ft) | |||||||||
Distribution |
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; BC; Central America (Guatemala); adventive in Europe; Pacific Islands (New Zealand)
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AK; Russia |
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Discussion | Subspecies 3 (3 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. 472. | FNA vol. 4, p. 467. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Montia perfoliata | |||||||||
Name authority | Donn ex Willdenow: Sp. Pl. 2: 1186. (1798) | Adams: Mém. Soc. Imp. Naturalistes Moscou 5: 94. (1817) | ||||||||
Web links |
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