Euchiton involucratus(G.Forst.) Holub

Star-CudweedCommon cudweed

WFO wfo-0000029558 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Euchiton involucratus, photographed by Peter de Lange
fig. a Peter de Lange, CC0 1.0 / 2019-02-09 / obs. 31507546

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 13 botanical countries

Regions where Euchiton involucratus is native: Taiwan, New Guinea, Philippines, Chatham Is., Kermadec Is., New South Wales, New Zealand North, New Zealand South, Norfolk Is., Queensland, South Australia, Tasmania, Victoria TaiwanNew GuineaPhilippinesNew South WalesNew Zealand NorthNew Zealand SouthQueenslandSouth AustraliaTasmaniaVictoria Chatham Is.Kermadec Is.Norfolk Is.
Native distribution of Euchiton involucratus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Chatham Is. CTM AUSTRALASIA
Kermadec Is. KER
New South Wales NSW
New Zealand North NZN
New Zealand South NZS
Norfolk Is. NFK
Queensland QLD
South Australia SOA
Tasmania TAS
Victoria VIC
New Guinea NWG ASIA-TROPICAL
Philippines PHI
Taiwan TAI ASIA-TEMPERATE

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 213 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -1.6 °C 4.2 °C 8.9 °C
Warmest month, mean daily high 15.8 °C 21.9 °C 25.9 °C
Annual rainfall 653 mm 1,004 mm 4,767 mm
Rainfall in the driest quarter 107 mm 180 mm 357 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 213 research-grade observations of Euchiton involucratus that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 13 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Euchiton forsteri Cass.
  • Euchiton involucratus (G.Forst.) Anderb.
  • Euchiton pulchellus Cass.
  • Gnaphalium cephaloideum Willd.
  • Gnaphalium cunninghamii DC.
  • Gnaphalium globosum Hornem.
  • Gnaphalium globosum Desf.
  • Gnaphalium involucratum G.Forst.
  • Gnaphalium involucratum var. planifolium Steetz
  • Gnaphalium involucratum var. simplex DC.
  • Gnaphalium involucratum var. undulatum Steetz
  • Gnaphalium lanatum G.Forst.
  • Gnaphalium lineare Hayata

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.