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FNA | Family List | FNA Vol. 4 | Portulacaceae | Claytonia

6. Claytonia exigua Douglas ex Torrey & A. Gray, Fl. N. Amer. 1: 200. 1838.

Pale claytonia

Plants annual, with minute, tuberous bodies; periderm absent. Stems 5-10 cm. Leaves: 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 1-bracteate; bract leaflike, 0.5-15 mm. Flowers 3-5 mm diam.; sepals 1.5-2.5 mm; petals white or pinkish, 2-5 mm; ovules 3. Seeds 0.5-1 mm, tuberculate; elaiosome inserted in wide notch of seed coat, 0.5-1 mm. 2n = 16, 32, 48.

Subspecies 2 (2 in the flora): w North America.


1 Cauline leaves distinct or partially connate into horn shape; petals 2-6 mm...   6a subsp. exigua
+ Cauline leaves perfoliate; petals 2-3 mm...   6b subsp. glauca


 

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