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Published In: Species Plantarum 2: 894. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Flower/Fruit: Fl. Per.: May-August.
Type: Type: Described from Sweden, Herb. Linn. 1016.15 (LINN !).
Habitat: Probably an introduced species, grown as an ornamental in Pakistan.
Distribution: Distribution: Throughout Europe (except extreme North), Turkey, Soviet Union (except Siberia), Iran; Introduced in N & S America, Australia, and New Zealand.
Map Location: C-6 Peshawar Dist.: Islamia College, Peshawar, Hassan Din 121 (RAW).

 

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Annual or biennial, sparingly to densely hairy, decumbent or erect, up to 50 (-80) cm tall herb. Leaves ovate-oblong, 1.5 – 5 cm long, 0.5 – 1.5 cm wide, 1-3-pinnatisect into ± hairy, linear-oblong or linear-lanceolate to elliptic, acute-mucronate ultimate segments. Peduncles slender, not or slightly to distinctly upwardly thickened in fruit. Capitula radiate, 1 – 4 cm across. Phyllaries oblong or oblong-obovate, outer acute, inner subacute to obtuse, hyaline to pale-brown scarious margined, hairy. Receptacle convex to elongated and conical especially in fruit, 2 – 10 x 2 – 3 mm, ± contracted, acute or attenuate to the tip. Phyllaries mostly lanceolate to oblanceolate, nearly as long as disc-florets, ± stiff acuminate apically, subpersistent. Ray-florets 12 – 15, fertile, corolla tube glabrous, ligules oblong-elliptic, 3.5 – 17 x 2.5 – 5 mm, white, deciduous. Disc-florets yellow, occasionally purplish-tinged, 2.5 – 3.5 mm long, basally not or very slightly inflated, glabrous. Cypselas obconical, 2 – 2.5 mm long, squarish in cross section, smooth, usually 10-ribbed, ribs thickened, obtuse, apex with a thickened undulating rim or a short lacerate hyaline auricle.
 
 
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