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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

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.

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.

Inflorescences

1-bracteate;

bract leaflike, 0.5–15 mm.

1–multibracteate;

proximalmost bract leaflike, distal bracts minute, membranous scales.

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.

Seeds

2–3 mm diam., shiny and smooth;

elaiosome 1–2 mm.

2–3 mm diam., shiny and smooth;

elaiosome 1 mm.

2n

= 12, 24, 36.

= 16, 24, 30.

Claytonia rubra

Claytonia tuberosa

Phenology Flowering May–Aug.
Habitat Wet to moist stony tundra slopes
Elevation 0-1200 m (0-3900 ft)
Distribution
from FNA
CA; CO; ID; MT; NV; OR; SD; UT; WA; WY; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; BC; NT; YT; Asia (Siberia)
[BONAP county map]
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.)

Key
1. Basal leaf blades trullate; cauline leaves distinct or perfoliate
subsp. rubra
1. Basal leaf blades lanceolate, spatulate, rhombic, or ovate; cauline leaves usually connate on only 1 side or perfoliate
subsp. depressa
Source FNA vol. 4, p. 473. FNA vol. 4, p. 475.
Parent taxa Portulacaceae > Claytonia Portulacaceae > Claytonia
Sibling taxa
C. acutifolia, C. arctica, C. arenicola, C. caroliniana, C. cordifolia, C. exigua, C. gypsophiloides, C. lanceolata, C. megarhiza, C. multiscapa, C. nevadensis, C. ogilviensis, C. palustris, C. parviflora, C. perfoliata, C. rosea, C. sarmentosa, C. saxosa, C. scammaniana, C. sibirica, C. tuberosa, C. umbellata, C. virginica, C. washingtoniana
C. acutifolia, C. arctica, C. arenicola, C. caroliniana, C. cordifolia, C. exigua, C. gypsophiloides, C. lanceolata, C. megarhiza, C. multiscapa, C. nevadensis, C. ogilviensis, C. palustris, C. parviflora, C. perfoliata, C. rosea, C. rubra, C. sarmentosa, C. saxosa, C. scammaniana, C. sibirica, C. umbellata, C. virginica, C. washingtoniana
Subordinate taxa
C. rubra subsp. depressa, C. rubra subsp. rubra
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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