Common name: Bipinnate Beggar's Ticks
Bidens bipinnata L. APNI*
Description: Almost glabrous woody herb to 1.6 m high.
Leaves toothed or entire, with sparse septate hairs restricted to the veins on the lower surface, pinnatifid, 8–4 cm long, 3–8 cm wide, lobes rhombic to broad-lanceolate; petiole very slightly winged.
Heads 5–10 mm diam., ovoid; outer involucral bracts narrow-lanceolate with ciliate margins; inner bracts membraneous. Ray florets yellow.
Achenes linear, slightly compressed, with a few barbs on the ribs; outer achenes 8–10 mm long, inner achenes 10–18 mm long; pappus bristles 2–3, 2–4 mm long.
Distribution and occurrence: Grows in rock crevices and on alluvial sand; rare, recorded at White Cliffs. Native of S Amer.
NSW subdivisions: *CWS, *NFWP
Other Australian states: *Qld *W.A. *N.T.
Text by J. Everett
Taxon concept: Flora of NSW 3 (1992)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.