a biennial commonly seen in fields or roadsides, grows 30-70cm in
height. Leaves are 5-10cm in length, of a bi- or tripinnate compound
leaf; leaflets are ovate-like lanceolate, delicately cut in, with
dense short, coarse hairs on upper- and back-sides. Branch ends
emerge small-sized compound umbels and set small white flowers in
them; pedicels are 4-10 in number, and involucral bracts are
slender. 2.5-3.5cm long. Fruit is oval-like long-oblong, with dense
bristles bent in a hook way. Bloom time: May-July.