Plant: Annual; stem decumbent to ascending, 1-5 dm, ± glandular-hairy Leaves: pinnately compound; lower 3-10 cm, blade > petiole, ovate to oblanceolate in outline, sparsely hairy; leaflets 9-13, deeply dissected, ultimate segments 1-2 mm wide Inflorescence: umbel Flowers: sepals 3-5 mm, tip bristly; petals ± = sepals, red-lavender, base generally purple; stamens 5, alternate 5 scale-like staminodes Fruit: Fruit: segments 5; body 4-7 mm, indehiscent, fusiform, 1-seeded, base sharply pointed, top generally pitted, pit ± round, glabrous, subtended by 1 shallow furrow or not; style column 2-5 cm Misc: Open, disturbed sites, grassland, scrub; < 2000 m.; Feb-May References: W. B. McDougal. Seed plants of Northern Arizona.J.C. Hickman, ed. The Jepson Manual. ASU specimens.