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Tridax procumbens L.
Family Asteraceae
Tridax procumbens L. APNI*

Description: Spreading perennial herb; rooting at nodes; stems striate, hairy.

Leaves lanceolate to ovate, 3–4 cm long, 10–20 mm wide, bright green above, grey-green below, toothed or shallowly lobed.

Peduncles at first short but lengthening when in full flower, up to 30 cm long; heads solitary, axillary and terminal, 10–15 mm diam.; outer involucral bracts each subtending a ray floret, herbaceous, bristly; inner bracts membranous or hyaline, often purple, hairy near apices, subtending outer disc florets. Ray florets 5 or 6, yellow, rarely white, 4–5 mm long; ligules pale yellow, 3-lobed at apex; hairy. Disc florets darker yellow, hairy.

Achenes c. 2 mm long, tapering to the base, covered with long hairs; pappus plumose, c. 6 mm long.


Herbarium
Sheet

Flowering: throughout year.

Distribution and occurrence: Weed of disturbed sites; north from Tweed Heads area.
NSW subdivisions: *NC
Other Australian states: *Qld *W.A. *N.T.
AVH map***

Text by L. Murray
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.
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