Citation: Gaertner, Fruct. 2:372 (1791).

Synonymy: Crepis barbara L., Sp. Pl. 805 (1753); T. umbellata Bertol., Rar. Lig. pl. 1:13 (1803). , Crepis barbata

Common name: Tolpis, yellow hawkweed.

Description:
Annual 12-50 cm high; stems ascending, smooth, pubescent at the base; basal leaves oblanceolate to narrowly lanceolate, narrowed basally, acute, serrate to entire, usually 2-8 cm long, 0.8-1.8 cm wide, in a rosette, sometimes smaller and soon withering, pubescent to scabrous; cauline leaves few, narrowly elliptic to linear, never auriculate.

Inflorescence cymose, with 1 or 2 branches arising below and overtopping each terminal capitulum, rarely unbranched in depauperate plants; peduncles slightly inflated with several subulate bracteoles just below the capitulum; capitula c. 15 mm diam.; outer involucral bracts accrescent, 6-10 mm long, pubescent basally, minutely denticulate; inner bracts narrowly lanceolate, 4-7 mm long, pubescent; outer florets 14-20; ligules 4-5 mm long, yellow.

Achenes cylindric, slightly curved, c. 1.5 mm long; pappus c. 0.3 mm long; inner florets numerous; ligules 2-3 mm long, yellow or reddish-purple; achenes cuneate, 1-1.5 mm long, black; pappus including 2-5 barbellate bristles to 3.5 mm long.

Distribution:  Weed of roadsides and other modified sites. S.Aust.: MU, SL.   W.Aust.; N.S.W.; Vic.; Tas.   Native to southern Europe. Conservation status: naturalised Flowering time: mainly Oct. — Feb.

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: The name T. umbellata has been applied to a variant of T. barbara with relatively small capitula and all the florets pale-yellow; it occurs scattered through populations of T. barbara in Europe and Australia.

Author: Not yet available