Hieracium caespitosum  (H. pratense) field hawkweed Asteraceae HICA*; Bx, pb (DeCandido 2001); NY, bl (Stalter and Tang 2002); Q, j, ri; K (DeCandido 2001); R, lp;

   

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Hieracium caespitosum.en.wikipedia.org (Accessed 4/2014).

Hieracium caespitosum is a perennial herb, colonial from rhizomes and short, thick stolons, sap milky, stems 25-90 cm tall, long-hairy, wooly and blackish-glandular hairy above. 

Leaves mostly in a basal rosette, 5-25 cm long, including stalk, 1-3.5 cm wide, long-hairy both sides, flowering stem with 0-2 small leaves. 

Flowers bright yellow, all rays, bracteate base 0.6-0.8 cm tall, blackish-hairy; inflorescence compact, branched, of 5-30 flower heads; blooms and fruits May-Sept. 

Fruit dry, 1-seeded achenes to 0.2 cm long, white plumed, wind dispersed. 

Wetland status: UPL. 

Frequency in NYC: Infrequent. 

Origin: Europe. 

Habitat: Open areas, roadsides, lawns, fields.