Show Lower Taxa
Claytonia exigua
Fl. N. Amer. 1: 200. 1838.
Common names: Pale claytonia
Revision as of 17:32, 18 September 2019 by FNA>Volume Importer
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.
Distribution
w North America.
Discussion
Subspecies 2 (2 in the flora).
Selected References
None.
Key
| 1 | Cauline leaves distinct or partially connate into horn shape; petals 2-6 mm | Claytonia exigua subsp. exigua |
| 1 | Cauline leaves perfoliate; petals 2-3 mm | Claytonia exigua subsp. glauca |