Trifolium arvense is an annual herb, erect, from a taproot, stems to 40 cm tall, branched, softly hairy, stipules to 1 cm, longer than leaf stalks.
Leaves alternate, 3-parted, leaflets narrow, 1-2 cm.
Flower grayish-pink, inflorescence a fuzzy-hairy head 1-3 cm long, cylindrical, with many tiny flowers, calyx lobes bristle-like, hairy, longer than petals; blooms May-Sept.
Fruit a pod enclosed in hairy calyx, seeds yellow, tiny, in fibrous matrix (Levine 1995; Uva et al. 1997).
Wetland status: NL.
Frequency in NYC: Infrequent.
Origin: Eurasia, N. Africa.
Habitat: Open, dry, sandy soil and fill.
Notes: Very often found with Corynphorus canescens (gray hairgrass).