Centaurea calcitrapa
Star Thistle at Pialligo, ACT
Identify this sighting
| Centaurea calcitrapa | BettyDonWood | 1 Feb 2016 | |
| Unverified | SilkeSma | 1 Feb 2016 |
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User's notes
I think this might be Centaurea calcitrapa. There are quite a few of them on the western nature strip next to the bike path- perhaps introduced with road building material?
2 comments
2 Feb 2016
Silke it has been present in Canberra for some time. I have seen it emerge on the floodplain of Jerrabomberra Wetlands in an area disturbed for powerline work, so not sure that seeds may already have been present in the Majura Valley.
2 Feb 2016
I collected a Herbarium specimen CANB 865442.1 from Mugga Mugga in 2013. This used to be a declared noxious weed but like most weeds there are not many specimens in the Herbarium.
Location information
- Coordinates 149.180807-35.292430
- Places Pialligo, ACT
Sighting information
- 16 - 100 Abundance
- 30 Jan 2016 03:20 PM Recorded on
- SilkeSma Recorded by
Collections
Species information
- Centaurea calcitrapa Scientific name
- Star Thistle Common name
- Not Sensitive
- Exotic
- Medium weed or pest
- Up to 826m Recorded at altitude
Seasonal activity
-
In flower
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