Euchiton sphaericus

Star Cudweed at Paddys River, ACT

Euchiton sphaericus at Paddys River, ACT - 15 Jan 2015
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Identification history

Euchiton sphaericus 30 Jan 2015 MichaelMulvaney
Euchiton sphaericus 25 Jan 2015 BettyDonWood
Euchiton involucratus 20 Jan 2015 galah681
Unidentified 20 Jan 2015 galah681

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3 comments

BettyDonWood wrote:
   26 Jan 2015
It is hard to tell from the photo. From your photo, the individual heads in the compound flower head appear to consist of single flowers. it appears to be an annual and it has 5 long floral leaves (Euchiton sphaericus in PlantNET). "Flora of the ACT" states that Euchiton involucratus is stoloniferous, and that there a maximum of 3 floral leaves longer than the compound flower head. Neither reference states how many flowers are in the individual flower head, though PlantNET states that individual flower heads are 1.5-3mm in diameter.
galah681 wrote:
   26 Jan 2015
Having read the 2 descriptions, I am not sure which it is. My original thought was that the leaves were different and sparser than on E. sphaericus, but this is not implied in the Plantnet description!
BettyDonWood wrote:
   26 Jan 2015
Looking at the PlantNET key again, it states that E. involucratus has 3 or more florets per head. I have not been able to blow up your photo enough to say definitely but it it looks more likely that there is only one. The achenes (seeds) would be another way to tell. E. sphaericus - Achenes fusiform, c. 0.7 mm long, brown; pappus bristles 5–8, c. 2 mm long, cohering at base, non-persistent, falling away in groups, barbellate apically. E. involucratus - Achenes minutely papillate. Achenes fusiform, c. 0.6 mm long, pale brown; pappus bristles cohering at the base and non-persistent, falling away together, c. 3 mm long.

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Location information

Sighting information

  • 1 - 3 Abundance
  • 15 Jan 2015 10:25 AM Recorded on
  • galah681 Recorded by

Additional information

  • True In flower

Species information

  • Euchiton sphaericus Scientific name
  • Star Cudweed Common name
  • Not Sensitive
  • Local native
  • Non-Invasive
  • Up to 1366.76m Recorded at altitude
  • 73 images trained Machine learning
  • In flower

Record quality

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  • More than one media file
  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
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  • Description
  • Additional attributes
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