Centipeda crateriformis N.G.Walsh APNI*
Description: Annual or perennial, commonly several branched from base, glabrescent to cotton-pubescent.
Leaves narrow-obovate to spathulate, toothed or rarely entire, rein dotted on both surfaces, concolourous.
Inflorescence a single sessile or minutely pedunculate head, sometimes terminal on ultimate branches, not leaf-opposed. Flower heads bowl or cup-shaped or sub-globular, domed or flat-topped; involucral bracts ovate to obovate.
Fruiting heads firm to hard, persistent to some degree; bracts spreading. Achenes linear or narrow-obcunoid, obtuse at apex, smooth or scabridulous, 4- or 5-angled with prominent ribs at the angles, vesicular trichomes sparsely scattered over faces of achenes and antrorse, subappressed hairs confined to the ribs.
Distribution and occurrence:
NSW subdivisions: SWS, NWP, SWP, NFWP, SFWP
Other Australian states: Qld Vic. S.A. W.A. N.T.
Text by Louisa Murray
Taxon concept: Walsh, N (2001) Revision of Centipeda. Muelleria Vol 15 ; 33-64
| ||Key to the subspecies|| |
|1||Decumbent to erect annuals, never producing adventitious roots; ripening fruit heads very hard and not readily disintegrating, 3.5–7 mm diam., inland areas of Australia||subsp. crateriformis|
|Prostrate to decumbent annuals or perennials, often producing adventitious roots or sometimes rhizomatous; ripe fruiting heads 2.5–5 mm diam., southern Australia (not Tasmania)||subsp. compacta|
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