Centaurium sp.

Centaury at Tharwa, ACT

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Identification history

	Centaurium sp.	26 Dec 2024	RWPurdie
	Centaurium erythraea	25 Dec 2024	Clarel

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3 comments

RWPurdie wrote:

26 Dec 2024

It's either Centaurium erythraea or C. tenuiflorum, but hard to work out which from the photos.

Clarel wrote:

28 Dec 2024

Thanks very much RWPurdie. I plan another walk and will try for better photos. There was a lot of it.

RWPurdie wrote:

28 Dec 2024

One of the things to look for is whether each plant has a rosette of leaves at its base. The basal rosette is absent or weakly developed in C. tenuiflorum and present and distinct in C. erythraea. The other distinguishing characters are: in C. tenuiflorum, the corolla lobes are 3–5 mm long; the calyx is mostly 6–8 mm long and usually at least two-thirds the length of corolla tube. In C. erythraea, the corolla lobes are 5–6 mm long; the calyx is mostly 4–6 mm long and less than two-thirds the length of corolla tube. So, if possible, take photos of the base of the plants and close-up photos of the flowers side-on.

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Location information

Coordinates 149.051514 -35.533553
Altitude 732.3m
Maps Namadgi National Park
Places Tharwa, ACT

Sighting information

16 - 100 Abundance
20 Dec 2024 09:02 AM Recorded on
Clarel Recorded by
Collections
Clarel Canberra & Southern Tablelands NatureMapr Other Wildflowers & Herbs Plants

Additional information

10cm to 30cm Plant height
True In flower

Species information

Centaurium sp. Scientific name
Centaury Common name
Not Sensitive
Exotic
Minor weed or pest
Up to 1394.77m Recorded at altitude
Machine learning
In flower
External link More information

Record quality

Images or audio
More than one media file
Verified by an expert moderator
Nearby sighting(s) of same species
GPS evidence of location
Description
Additional attributes

Australian Capital Territory

New South Wales

Queensland

Northern Territory

Western Australia

South Australia

Victoria

Tasmania