Centipeda nidiformis N.G.Walsh

Muelleria 15: 51 (2001) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Decumbent to ascending cottony annual, spreading to c. 15 cm diam. and/or 15 cm high, adventitious roots not or rarely produced; branches densely white-cottony at least on young growth. Leaves more or less spathulate, 3–10 mm long, 1–5 mm wide, usually with very slender petiole-like bases that are often almost as long as (occasionally longer than) the broader part of the lamina, shallowly (often obtusely) toothed or subentire; surfaces light to densely cottony, with (often indistinct) scattered resin droplets. Capitula more or less globular at anthesis, 2.5–5 mm diam., solitary, sessile; involucral bracts obovate with erose membranous margins, 1–1.6 mm long, usually densely cottony; receptacle depressed-hemispherical; female florets c. (50–)110–230, corollas 0.35–0.5 mm long; bisexual florets (6–)9–11, corollas 0.6–0.7 mm long. Fruiting heads readily disintegrating when mature on still-growing plants. Cypselas obcuneate, 0.8–1.1 mm long; ribs 4(–6), with short, subappressed hairs; intervening faces concave with 1 or 2 lines of vesicular trichomes; apex depressed-truncate. Flowers mostly Jan.–Apr.

Gold, GGr, MuF, MuM, MSB, NIS, RobP, VRiv, Wim. Also WA, NT, SA, Qld, NSW. Scattered throughout the Murray Basin and around the Grampians along the margins of watercourses on clay or clay-loam soils.

The leaves of Centipeda nidiformis are generally diagnostic, usually having relatively long, ‘pseudopetiolate’ bases, which distinguishes it from similar species such as C. minima. For relationships see C. pleiocephala.

Created by: Daniel Ohlsen, 2015-09-18
Updated by: Val Stajsic, 2019-07-31
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
family Asteraceae
genus Centipeda
Higher taxa

Victoria

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

State distribution

Distribution map
State
Western Australia
Northern Territory
South Australia
Queensland
New South Wales
Victoria