Prostrate or ascending annual 1-3 dm; lvs oblong to commonly ovate or even rotund, 1-2 cm, obtuse, crenately serrate, broadly obtuse to rounded or truncate at base, short- petiolate; pedicels 6-10 mm, elongating to 15 mm in fr; sep ovate or lance-ovate, 3.5-5 mm at anthesis, minutely ciliate, in fr somewhat longer and 3-nerved; fls usually whitish, 4-8 mm wide; style ca 1 mm, not exceeding the sinus of the fr; fr evidently reticulate-veiny, sparsely glandular-pubescent, 4-6 נ3-4 mm, its lobes parallel, the sinus narrow, extending ca one-third of the way to the base; 2n=28. Native of Eurasia, now established in fields, lawns, and roadsides from Nf. and N. Engl. to N.Y. and Pa., w. to Mich.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
