5.
Claytonia cordifolia
S. Watson, Proc. Amer. Acad. Arts. 17: 365. 1882.
Cordate-leaved spring beauty
Claytonia sibirica
Linnaeus var.
cordifolia
(S. Watson) R. J. Davis;
Montia cordifolia
(S. Watson) Pax & K. Hoffmann
Plants
perennial, rhizomatous; rhizomes 4-8 mm diam.; periderm absent.
Stems
5-30 cm.
Leaves:
basal leaves petiolate, blade ovate to deltate or cordate, 2-7 × 1-5 cm; cauline leaves sessile, blade ovate, 1-4 cm.
Inflorescences
ebracteate.
Flowers
10-15 mm diam.; sepals 4-8 mm; petals white, 8-12 mm; ovules 6.
Seeds
(1-)6, 1-2 mm diam., shiny and smooth; elaiosome 1 mm or less.
2
n
= 10, 20.
Flowering May-Sep. Meadows, seeps; 500-2000 m; B.C.; Calif., Idaho, Mont., Nev., Oreg., Utah, Wash.
