Centipeda crateriformis subsp. compacta N.G.Walsh

Muelleria 15: 60 (2001) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Tufted or loosely mat-forming perennial, sometimes shortly rhizomatous or producing adventitious roots from lower nodes, 20 cm diam., to c. 10 cm high; branches prostrate to suberect, glabrous except for cottony hairs on young growth. Leaves more or less oblong to spathulate, 4–10(–14) mm long, 1–2(–3.5) mm wide, 3–5(–7) toothed toward apex or entire, surfaces resin-dotted. Capitula more or less hemispherical to bowl-shaped at anthesis, 3.5–7 mm diam., solitary, sessile or minutely pedunculate; involucral bracts ovate to obovate, entire or with minutely ruminate membranous margins, 1.5–4 mm long; receptacle flat to very slightly concave or convex; female florets c. 100–200, corollas 0.4–0.7 mm long; bisexual florets (7–)12–22, corollas c. 0.8 mm long. Fruiting heads disintegrating as cypselas mature. Cypselas narrowly obcuneoid, 1.0–1.7 mm long; ribs 4–5, occasionally also with 1–3 less raised ribs, smooth or rarely scabridulous, with antrorse, subappressed, slightly inrolled and apically thickened hairs; intervening faces with sparsely scattered vesicular trichomes and/or resin droplets; apex obtuse extending as a thickened, spongy portion a third of the cypsela length. Flowers most of the year.

Glep, Gold, GGr, LoM, MuM, MSB, RobP, VRiv, Wim. Also WA, SA, NSW. Principally grows on the shores of drying watercourses and in seasonally inundated swamps and depressions in the west, from the Grampians region north.

Created by: Daniel Ohlsen, 2015-09-18
Updated by: Neville Walsh, 2018-11-14
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Distribution map

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Centipeda crateriformis subsp. compacta in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Centipeda crateriformis subsp. compacta in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Goldfields present native
Greater Grampians present native

State distribution

Distribution map
State
Western Australia
South Australia
New South Wales
Victoria