Daucus guttatus Sm., it is an annual herb, erect to spreading, up to 20-30 (-60) cm long, rather flexuouse, slender, sub glabrous or retrorse-hispid, obscurely sulcate. Leaves usually few, 3-pinnate,1.5-8 cm long, lower long-petiolate, upper sub sessile; ultimate segments lanceolate or linear-lanceolate, acute, 2-8 x 1-2 mm, generally entire. Umbels leaf-opposed and terminal, flattish, 6-12-rayed, long-peduncled, peduncles lengthening in fruit. Bracts usually longer than the rays, pinnatisect with many filiform, setaceous or narrowly linear segments, hispidulous, 10-25 (-30) mm long; rays numerous, 5-20 mm long in flowers, increasing and becoming sub erect in fruit; bracteoles various, 3-4 outer setaceous, up to c. 15 x 1-1.5 mm, herbaceous, hispidulous, 2-3 inner linear- acuminate, c. 5 x 1-1.5 mm, ± keeled and membranous-ciliate except for the mid nerve. Flowers white, bisexual, staminate or sterile, those at the center of umbel and umbellules mostly sterile and dark blackish-crimson; pediceIs up to 8 mm in flowers, lengthening in fruit; petals very small, unequal, outer slightly radiant, c. 1-1.5 mm in diam. Fruit narrowly oblong-ellipsoid, 3-5 x 1.5 mm; primary ridges shortly setose with 2 rows of spreading bristles; secondary ridges conspicuously spinose, with 4-5 mm long, single row of glochidiate spines flattened and inconspicuously confluent at the base.
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