Trifolium pratense is a perennial herb, erect usually to 80 cm tall; stems hairy.
Leaves 3-parted, stipules awned, lower leaves long-stalked, upper leaves short-stalked to stalkless, leaflets white-spotted, larger than those of T. repens.
Flowers purple-red, 0.1 cm long, bilaterally symmetrical, pea-flower-shaped, individual flowers stalkless (sessile); flower heads rounded, to 2 cm; blooms May-Aug. Old flower heads often tuning black.
Fruit a dry pod.
Wetland status: FACU-.
Frequency in NYC: Very common.
Habitat: Open, weedy areas, roadsides, on fill, lawn edges.
Notes: Foliage eaten by rabbits and woodchucks, seeds eaten by numerous birds and small mammals (Martin et al. 1951).