Hieracium venosum is a perennial herb, sap milky, stems 20-80 cm tall, usually hairless.
Leaves mostly basal, 3-16 cm long, including stalk, 0.8-5 cm wide, elliptic to widest above middle, midrib and veins reddish-purple, very conspicuous, blade often purplish on underside, long-hairy along margin and near base; stem leaves 0-3, small.
Flowers yellow, all rays, 15-40 per head, bracteate base of flower heads 0.7-1 cm long; blooms May-July.
Fruit dry, 1-seeded achenes, 0.3-0.4 cm narrow near top.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Origin: Native.
Habitat: Open, dry woods. Usually on banks where leaves do not accumulate.