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Madrean springbeauty, Rocky Mountain Spring beauty, western springbeauty

lanceleaf spring-beauty, western spring-beauty

Habit Plants perennial, with globose tubers 20–100 mm; periderm 5–10 mm. Plants perennial, with globose tubers 5–20 mm diam.; periderm 1–5 mm.
Stems

2–15 cm.

1–10 cm.

Leaves

basal leaves sometimes absent, petiolate, blade linear to narrowly spatulate, 1–7 × 0.4–2 cm, apex acute to obtuse;

cauline leaves petiolate, blade linear, 2–5 cm, apex acute to obtuse.

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.

Inflorescences

multibracteate, rarely 1-bracteate;

proximalmost bract leaflike, distal bracts reduced to membranous scales.

1-bracteate (rarely with 2 bracts).

Flowers

8–14 mm diam.;

sepals 3–5 mm;

petals pink, rose, or magenta, 8–10 mm;

ovules 6.

8–14 mm diam.;

sepals 4–6 mm;

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

ovules 6.

Seeds

2–3 mm, shiny and smooth;

elaiosome 1–2 mm.

2–2.5 mm diam., shiny and smooth;

elaiosome 1–2 mm.

2n

= 16.

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

Claytonia rosea

Claytonia lanceolata

Phenology Flowering Feb–May. Flowering Apr–Jul.
Habitat Hillsides and mesas of montane ponderosa and Chihuahuan pine and oak belts Sagebrush and montane foothills to alpine areas, particularly where snow persists
Elevation 800-2400 m (2600-7900 ft) 500-3000 m (1600-9800 ft)
Distribution
from FNA
AZ; CO; NM; UT; Mexico
[WildflowerSearch map]
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; SK
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[BONAP county map]
Discussion

Claytonia rosea is morphologically distinct from C. lanceolata based on early cytological and ecological study of the two species by D. K. Halleck and D. Wiens (1966) and the author’s review of type material.

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

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.)

Source FNA vol. 4, p. 472. 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. 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. 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
Synonyms C. lanceolata var. rosea C. caroliniana var. peirsonii, C. lanceolata subsp. chrysantha, C. lanceolata var. idahoensis, C. lanceolata var. peirsonii, C. sessilifolia
Name authority Rydberg: Bull. Torrey Bot. Club 31: 404. (1904) Pursh: Fl. Amer. Sept. 1: 175, plate 3. (1814)
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