Cassytha melanthaR.Br.

WFO wfo-0000589798 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Cassytha melantha, photographed by Kym Nicolson
fig. a Kym Nicolson, CC BY 4.0 / 2022-05-02 / obs. 194253701

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 5 botanical countries

Regions where Cassytha melantha is native: New South Wales, South Australia, Tasmania, Victoria, Western Australia New South WalesSouth AustraliaTasmaniaVictoriaWestern Australia
Native distribution of Cassytha melantha, 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.
RegionTDWG codeContinent
New South Wales NSW AUSTRALASIA
South Australia SOA
Tasmania TAS
Victoria VIC
Western Australia WAU

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.

Flowering 38 in flower of 112 examined

Proportion of examined Cassytha melantha in flower, by month
Month In flower Examined Share 95% interval
Jan 0 7 0% 0% to 35%
Feb 0 4 too few examined
Mar 0 2 too few examined
Apr 0 0 too few examined
May 1 1 too few examined
Jun 3 8 38% 14% to 69%
Jul 5 12 42% 19% to 68%
Aug 9 14 64% 39% to 84%
Sep 20 31 65% 47% to 79%
Oct 0 20 0% 0% to 16%
Nov 0 10 0% 0% to 28%
Dec 0 3 too few examined

Peak flowering in Sep. Each bar is the share of Cassytha melantha observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 38 of 112 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 1 synonym

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.

  • Cassytha robusta Meisn.

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. 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.