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lanceleaf spring-beauty, western spring-beauty

little spring beauty, pale claytonia, pale spring-beauty, pallid claytonia, serpentine springbeauty

Habit Plants perennial, with globose tubers 5–20 mm diam.; periderm 1–5 mm. Plants annual, with minute, tuberous bodies; periderm absent.
Stems

1–10 cm.

5–10 cm.

Leaves

basal leaves 1–6, often absent at flowering, blade linear to lanceolate, 5–40 × 0.2–1.6 cm;

cauline leaves sessile, blade ovate to narrowly lanceolate, 1–6 × 0.5–2 cm.

blades gray, beige, or pink, glaucous;

basal leaf blades linear or spatulate, 1–6 × 0.05–0.5 cm;

cauline leaves sessile, distinct or partially connate into horn shape, blade spatulate, 0.2–4.5 cm, or subperfoliate, blade 0.2–4.5 cm wide.

Inflorescences

1-bracteate (rarely with 2 bracts).

1-bracteate;

bract leaflike, 0.5–15 mm.

Flowers

8–14 mm diam.;

sepals 4–6 mm;

petals white to pink, rose, magenta, yellow, or deep orange, 5–20 mm;

ovules 6.

3–5 mm diam.;

sepals 1.5–2.5 mm;

petals white or pinkish, 2–5 mm;

ovules 3.

Seeds

2–2.5 mm diam., shiny and smooth;

elaiosome 1–2 mm.

0.5–1 mm, tuberculate;

elaiosome inserted in wide notch of seed coat, 0.5–1 mm.

2n

= 12, 16, 24, 32, 36, 44, 48, 52, 64, 74, ca. 90.

= 16, 32, 48.

Claytonia lanceolata

Claytonia exigua

Phenology Flowering Apr–Jul.
Habitat Sagebrush and montane foothills to alpine areas, particularly where snow persists
Elevation 500-3000 m (1600-9800 ft)
Distribution
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; SK
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Some differences of opinion exist regarding the relationships of Claytonia lanceolata and C. rosea. The work of D. K. Halleck and D. Wiens (1966) and J. S. Shelly et al. (1998) provides ample justification for their recognition as distinct species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Cauline leaves distinct or partially connate into horn shape; petals 2-6 mm
subsp. exigua
1. Cauline leaves perfoliate; petals 2-3 mm
subsp. glauca
Source FNA vol. 4, p. 469. FNA vol. 4, p. 468.
Parent taxa Portulacaceae > Claytonia Portulacaceae > Claytonia
Sibling taxa
C. acutifolia, C. arctica, C. arenicola, C. caroliniana, C. cordifolia, C. exigua, C. gypsophiloides, 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. tuberosa, C. umbellata, C. virginica, C. washingtoniana
C. acutifolia, C. arctica, C. arenicola, C. caroliniana, C. cordifolia, 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. tuberosa, C. umbellata, C. virginica, C. washingtoniana
Subordinate taxa
C. exigua subsp. exigua, C. exigua subsp. glauca
Synonyms C. caroliniana var. peirsonii, C. lanceolata subsp. chrysantha, C. lanceolata var. idahoensis, C. lanceolata var. peirsonii, C. sessilifolia
Name authority Pursh: Fl. Amer. Sept. 1: 175, plate 3. (1814) Douglas ex Torrey & A. Gray: Fl. N. Amer. 1: 200. (1838)
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