Coronidium scorpioides

Button Everlasting at Cotter River, ACT

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Identification history

	Coronidium scorpioides	12 Feb 2019	BettyDonWood
	Coronidium scorpioides	11 Feb 2019	KenT

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User's notes

Last image shows what I've interpreted to be leaves that are adaxially scabrous or slightly roughened by persistent short septate hairs or bristles as per the Walsh 2014 key in Muelleria 32.

4 comments

BettyDonWood wrote:

12 Feb 2019

I am inclined to Coronidium sp. Like a lot of Brindy Coronidiums, it has characters to fit a bit of all three - scorpioides, monticola, and gunnianum. Do you have measurements for flower diameter, leaf length, and lesf width?

KenT wrote:

12 Feb 2019

Capitula 25-30mm dia, larger leaves to around 50mm long and 10-12 mm wide. I went by the rough leaf surface as per the Walsh key, but I concede some of that roughness may have arisen from the western NSW soil deposited on the leaf surface during recent rain. I also note that the ACT plant census seems to have decided to ignore the revision by Walsh.

JackieMiles wrote:

13 Feb 2019

I agree with Betty, it seems rather betwixt and between. The very scabrid leaf surface certainly sounds like scorpioides in theory (yet to check a definite specimen of scorp to see this for myself), but could also be rutidolepis (though outside its theoretical range). There don't seem to be many bracts immediately below the involucre, which suggests rutidolepis, not scorpioides. I'll forward the link to NW and see if he has any thoughts on it. I've recently collected some more of these in betweeny sort of plants for him, but I doubt it'll lead to much clarification. The "species" seem to have a bit of a continuum going on between them.

BettyDonWood wrote:

13 Feb 2019

Here is Neville’s reply.
Fortuitously I can actually see the septate bristles on the upper leaf surfaces in one of the photos (image 5/5), so I'd be pretty confident of this being C. scorpioides s.s.
It is high for this sp., but it happens, particularly on the Sthn Tablelands of NSW, less commonly in Vic (but in some of those uppity subalpine woodlands that can carry Themeda etc., around 1000-1200 m)

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