Claytonia megarhiza

(A. Gray) Parry ex S. Watson

Smithsonian Misc. Collect 258: 118. 1878.

Common names: Fell-fields claytonia
Endemic
Basionym: Claytonia arctica var. megarhiza A. Gray Amer. J. Sci. Arts, ser. 2, 33: 406. 1862
Synonyms: Claytonia megarhiza var. bellidifolia (Rydberg) C. L. Hitchcock Claytonia megarhiza var. nivalis (English) C. L. Hitchcock
Treatment appears in FNA Volume 4. Treatment on page 469. Mentioned on page 466.
Revision as of 22:01, 5 November 2020 by imported>Volume Importer
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Plants perennial, with stout, woody caudices; periderm 5–12 mm. Stems 5–25 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. Inflorescences multibracteate; bracts subtending pedicels, apex obtuse. Flowers 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 mm or less. 2n = 12, 16, 24, 32, 34, 36.


Phenology: Flowering May–Aug.
Habitat: Talus, scree, gravelly slopes
Elevation: 2000-4000 m

Distribution

V4 933-distribution-map.gif

Alta., B.C., N.W.T., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Claytonia megarhiza"
John M. Miller +
(A. Gray) Parry ex S. Watson +
Claytonia arctica var. megarhiza +
Fell-fields claytonia +
Alta. +, B.C. +, N.W.T. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
2000-4000 m +
Talus, scree, gravelly slopes +
Flowering May–Aug. +
Smithsonian Misc. Collect +
Claytonia megarhiza var. bellidifolia +  and Claytonia megarhiza var. nivalis +
Claytonia megarhiza +
Claytonia +
species +