Euchiton sphaericus (Willd.) Anderb.

Star Cudweed

Opera Bot. 104: 167 (1991) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Erect (rarely ascending or procumbent), simple to many-branched annual, 2–100 cm high. Leaves all or mostly cauline, obovate, oblanceolate or c. linear, 1–12 cm long, 2–15 mm wide, upper surface green and glabrous to greyish-cobwebbed, lower surface whitish with appressed cottony hairs, margins often undulate. Inflorescence a terminal, hemispherical cluster, often with axillary (sometimes pedunculate) clusters, 0.5–2.5 cm diam., subtended by 4–10 leaves, the longest usually c. twice as long as the diameter of the cluster. Capitula of terminal cluster very numerous, narrowly ovoid or c. cylindric; inner bracts narrowly oblong, 3.5–4 mm long, acute, hyaline or with a narrow crimson band or blotch below the straw-coloured tip; bisexual floret 1. Cypselas sparsely hairy, c. 0.7 mm long. Flowers mostly Sep.–Dec.

Brid, CVU, DunT, EGL, EGU, GipP, Glep, Gold, GGr, HFE, HNF, HSF, LoM, MonT, MuF, MuM, MSB, NIS, OtP, OtR, RobP, SnM, Strz, VAlp, VRiv, VVP, WaP, WPro, Wim. All States. New Zealand, South-east Asia. Except in high-altitude areas, a very common and widespread species, occurring on a wide variety of substrates, e.g. mallee and coastal sands, clayey floodplain areas, and often colonizing disturbed ground.

There are several distinctive variants in the State, some possibly warranting taxonomic recognition. Plants of sandy soils in the far north-west have relatively broad obovate leaves and may be under 3 cm high when mature. A variant apparently largely confined to the Murray River floodplain in the Riverina has almost linear leaves that are grey-cottony on the upper surface, and inflorescences that often include numerous, axillary clusters; such plants bear a superficial resemblance to introduced, spicate cudweeds (Gamochaeta) or the native Gnaphalium polycaulon.

Source: Walsh, N.G. (1999). Euchiton. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2017-01-27
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
family Asteraceae
genus Euchiton
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Euchiton sphaericus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Euchiton sphaericus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Bridgewater present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Wilsons Promontory present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Otway Ranges present native
Strzelecki Ranges present native
Monaro Tablelands present native
Highlands-Far East present native
Victorian Alps present native
Snowy Mountains present native

State distribution

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