Common name: Brazilian Button Flower
Centratherum punctatum Cass. APNI* Synonyms: Centratherum punctatum subsp. punctatum Cass. APNI*
Description: Sprawling to erect annual herb, 0.5–1 m high, divaricate-branched, woody at base; stems slightly ridged, densely hairy.
Leaves obovate, 2–6 cm long, 6–20 mm wide, apex acute, with 10–18 pairs of acute teeth, lamina glabrous to sparsely hairy, gland-dotted; petiolate.
Heads hemispherical to globose, 20–25 mm diameter; involucral bracts oblong to lanceolate, with spreading, ± purplish, scarious, tips ciliate to fimbriate, outer bracts 12–25 mm long, inner 5–7 mm long, glandular. Florets mauve to purple.
Achenes ± cylindrical, glabrous; pappus bristles not persistent.
Flowering: summer–autumn.
Distribution and occurrence: Native of South America. Grows in pasture.
NSW subdivisions: *NC
Other Australian states: *Qld
Text by M. F. Porteners
Taxon concept:
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.
|
