Habit: Subshrub; hairs barbed.
Leaf: linear to +- round, entire to toothed; base tapered to cordate.
Inflorescence: raceme, generally terminal; bracts 3 per flower, outer 1 > inner 2.
Flower: sepals +- deciduous; petals free or claws adherent, fused below blades; stamens generally 5, free; ovary +- ovoid, placenta 1, stigma 1.
Fruit: achene, +- ovoid, generally 5-veined or -ribbed, erect.
Seed: 1, 1.5--2.5 mm, +- fusiform, generally smooth.
Chromosomes: 2n=46.
Species In Genus: 5 species: southwestern United States, northwestern Mexico.
Etymology: (Greek: petal claw)
Jepson eFlora Author: Larry Hufford & Barry Prigge
Reference: Davis & Thompson 1967 Madroño 19:1--32
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)Key to Petalonyx
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