Slender annual 1-4 dm, branched above; lvs alternate or scattered or the lowest occasionally in whorls of 2-5, linear, 1-2 cm נ1-2(-3) mm; peduncles 2-8 cm; bracts deciduous; racemes very slender, the whole axis to 10 cm, the floriferous or fructiferous part 1-5 cm, becoming interrupted at base; pedicels 0.5 mm; fls white or greenish-white; wings about equaling the fr. Open woods and fields, especially in sandy soil; Me. to n. N.H., Mich., and Mo., s. to Ga., Ala., and Okla. June-Oct. Wings usually 1.3-1.7 mm; plants from S.C. to se. Va., and from Mo., Ark., and Okla., with wings 2-2.6 mm, have been called P. verticillata var. dolichoptera. (P. verticillata var. a.)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.

From Flora of Indiana (1940) by Charles C. Deam

In poor soil on open wooded slopes, in washed fallow fields, and in post oak flats.

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Indiana Coefficient of Conservatism: C = 4

Wetland Indicator Status: FACU