Euphorbia dallachyana

Mat Spurge, Caustic Weed at Watson, ACT

Euphorbia dallachyana at Watson, ACT - 28 Jan 2016
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Identification history

Euphorbia drummondii 18 Sep 2016 waltraud
Euphorbia sp. 18 Sep 2016 waltraud
Euphorbia dallachyana 29 Jan 2016 waltraud

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User's notes

syn. Chamaesyce drummondii

5 comments

waltraud wrote:
   19 Sep 2016
I think this is the Sun Spurge, Euphorbia drummondii, previously Chamaesyce drummondii. I couldn't find either name in the drop-down list.
waltraud wrote:
   19 Sep 2016
I checked the other registrations under the name E dallachyana; I think they need to be changed to E. drummondii.
waltraud wrote:
   19 Sep 2016
PlantNet lists
Chamaesyce drummondii (Boiss.) D.C.Hassall APNI*
Synonyms: Euphorbia drummondii, in part APNI*
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Chamaesyce~drummondii
ACT Census lists
Euphorbia drummondii
BettyDonWood wrote:
   19 Sep 2016
Unless you have good closeups of the fruiting bodies showing whether they have a fringe or not, it is impossible to decide between these two species. Here ia the section of the key in PlantNet, which still calls them Chamaesyce.
Capsule with a fringed receptacle appendage appressed to base; seed faces more or less smoothChamaesyce dallachyana
Capsule without a fringed receptacle appendage; seed faces wrinkled Chamaesyce drummondii
waltraud wrote:
   19 Sep 2016
Thanks Betty
I didn't check the fruits I must admit. The plants are quite common so it shouldn't be a problem to collect a fruiting specimen for a final id. From memory S. Sharp id-ed the species as E. drummondii at a VegWatch session back in Nov 2013. The ACT Census lists E. drummondii but not E. dallachyana.

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Location information

Sighting information

Species information

  • Euphorbia dallachyana Scientific name
  • Mat Spurge, Caustic Weed Common name
  • Not Sensitive
  • Local native
  • Non-invasive or negligible
  • Up to 1011m Recorded at altitude
  • Machine learning
  • In flower
  • External link More information
  • Synonyms

    Chamaesyce drummondii Chamaesyce dallachyana Euphorbia drummondii

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  • Nearby sighting(s) of same species
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  • Additional attributes
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