Claytonia tuberosa
in J. J. Roemer et al., Syst. Veg. 5: 436. 1819.
Plants perennial, with globose tubers 10–30 mm, rarely rhizomatous; periderm 5–20 mm. Stems 15–25 cm. Leaves: basal leaves usually absent or few, blade linear, 4–15 × 0.4–0.8 cm; cauline leaves sessile, blade linear to lanceolate, 2–7 × 0.2–0.6 cm, tapered to slender base, apex acute. Inflorescences 1–multibracteate; proximalmost bract leaflike, distal bracts minute, membranous scales. Flowers 12–20 mm diam.; sepals 4–6 mm; petals white with yellow blotch at base, 6–14 mm; ovules 6. Seeds 2–3 mm diam., shiny and smooth; elaiosome 1 mm. 2n = 16, 24, 30.
Phenology: Flowering May–Aug.
Habitat: Wet to moist stony tundra slopes
Elevation: 0-1200 m
Distribution
B.C., N.W.T., Yukon, Alaska, Asia (Siberia)
Discussion
Claytonia czukczorum was included by S. L. Welsh (1974) and E. Hultén (1968) as a variety of C. tuberosa. Based upon the author’s study of type material, it is grouped with C. multiscapa.
Selected References
None.