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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

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.

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.

Inflorescences

1-bracteate;

bract leaflike, 0.5–15 mm.

multibracteate;

bracts subtending pedicels, apex obtuse.

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.

Seeds

2–3 mm diam., shiny and smooth;

elaiosome 1–2 mm.

2–3 mm diam., shiny and smooth;

elaiosome 1 mm or less.

2n

= 12, 24, 36.

= 12, 16, 24, 32, 34, 36.

Claytonia rubra

Claytonia megarhiza

Phenology Flowering May–Aug.
Habitat Talus, scree, gravelly slopes
Elevation 2000-4000 m (6600-13100 ft)
Distribution
from FNA
CA; CO; ID; MT; NV; OR; SD; UT; WA; WY; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

(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. 469.
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. multiscapa, C. nevadensis, C. ogilviensis, C. palustris, C. parviflora, C. perfoliata, C. rosea, C. rubra, C. sarmentosa, C. saxosa, C. scammaniana, C. sibirica, C. tuberosa, C. umbellata, C. virginica, C. washingtoniana
Subordinate taxa
C. rubra subsp. depressa, C. rubra subsp. rubra
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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