Basal leaf blades linear, 1-15 × 0.05-0.3 cm. Cauline leaf blades perfoliate, 2-10 cm diam. Flowers 2-8 mm diam., petals white or pink. 2n = 24, 36, 48. Flowering Mar-Jun. Waste ground, landslides, highway margins, heavily grazed land; 0-2000 m; B.C.; Ariz., Calif., Idaho, Mont., Oreg., Wash.

LEAVES: basal leaves linear to narrowly oblanceolate, 6.3 – 12.8 cm long, 0.15-1 cm wide; cauline leaves connate and perfoliate. FLOWERS: 4 – 14; sepals 1.2 – 2.5 mm long; petals 2.5-3 mm long, pink or white. SYNONYMS: [Claytonia perfoliata var. parviflora (Douglas ex Hook.) Torr.; Montia perfoliata var. parviflora (Douglas ex Hook.) Jeps.; M. perfoliata forma parviflora (Douglas ex Hook.) J. T. Howell]. SEEDS: 1.2-1.5 mm long. 2n = 24, 36, 48. SYNONYMS: [Claytonia perfoliata var. parviflora (Douglas ex Hook.) Torr.; Montia perfoliata var. parviflora (Douglas ex Hook.) Jeps.; M. perfoliata forma parviflora (Douglas ex Hook.) J. T. Howell]. NOTES: Moist areas: Gila, Maricopa, Pinal cos.; 800-1050 m (2600-3500 ft); Mar-May; CA, ID, MT, NV, OR, UT, WA; British Columbia, Can.; Mex. This subspecies may intergrade with other species of the C. perfoliata complex (Miller 2003). REFERENCES: Allison Bair, Marissa Howe, Daniela Roth, Robin Taylor, Tina Ayers, and Robert W. Kiger., 2006, Vascular Plants of Arizona: Portulacaceae. CANOTIA 2(1): 1-22.