Claytonia megarhiza(synonym of Claytonia megarhiza var. nivalis) |
Claytonia exigua |
|||||
---|---|---|---|---|---|---|
alpine springbeauty |
little spring beauty, pale claytonia, pale spring-beauty, pallid claytonia, serpentine springbeauty |
|||||
Habit | Plants perennial, with stout, woody caudices; periderm 5–12 mm. | Plants annual, with minute, tuberous bodies; periderm absent. | ||||
Stems | 5–25 cm. |
5–10 cm. |
||||
Leaves | 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. |
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 | multibracteate; bracts subtending pedicels, apex obtuse. |
1-bracteate; bract leaflike, 0.5–15 mm. |
||||
Flowers | 12–20 mm diam; sepals 6–8 mm; petals white, pink, or rose, 5–20 × 3–8 mm; ovules 6. |
3–5 mm diam.; sepals 1.5–2.5 mm; petals white or pinkish, 2–5 mm; ovules 3. |
||||
Seeds | 2–3 mm diam., shiny and smooth; elaiosome 1 mm or less. |
0.5–1 mm, tuberculate; elaiosome inserted in wide notch of seed coat, 0.5–1 mm. |
||||
2n | = 12, 16, 24, 32, 34, 36. |
= 16, 32, 48. |
||||
Claytonia megarhiza |
Claytonia exigua |
|||||
Phenology | Flowering May–Aug. | |||||
Habitat | Talus, scree, gravelly slopes | |||||
Elevation | 2000-4000 m (6600-13100 ft) | |||||
Distribution |
CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT |
CA; NV; OR; WA; BC
|
||||
Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|||||
Key |
|
|||||
Source | FNA vol. 4, p. 469. | FNA vol. 4, p. 468. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | C. arctica var. megarhiza, C. megarhiza var. bellidifolia, C. megarhiza var. nivalis | |||||
Name authority | (A. Gray) Parry ex S. Watson: Smithsonian Misc. Collect 258: 118. (1878) | Douglas ex Torrey & A. Gray: Fl. N. Amer. 1: 200. (1838) | ||||
Web links |
|
|