Prasophyllum sphacelatum at Namadgi National Park

1 Subalpine leek orchid at Namadgi National Park

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Identification history

Prasophyllum sphacelatum	9 Feb 2021	DerekC
Prasophyllum sp.	6 Feb 2021	MattM
Prasophyllum sphacelatum	20 Dec 2020	MattM

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Author's notes

Only 4-5 flowering plants, but several more leaves present. Early flowering time (December) and somewhat withered leaf tip suggests P. sphacelatum. Given the similarities between P. sphacelatum and P. tadgellianum, I would appreciate a double check for the ID.

3 comments

DerekC wrote:

9 Feb 2021

Matt I would confirm P.sphacelatum for the following reasons. P. tadgellianum flowers are more crowded where these are more evenly spaced and the the petals of tadgellianum are relatively shorter to the sepals. The Callus of sphacelatum is wrinkled as is this one where tadgellianum Callus is smooth and again the labellum relative smaller and narrower. I am happy this is P. sphacelatum.

MattM wrote:

9 Feb 2021

Ok. I will defer to your judgement. I haven't seen enough of either species to be confident of the ID.

DerekC wrote:

9 Feb 2021

I am not sure I am either but using David's new book I feel a little more confident. There is a very interesting photo of P. tadgellianum and descriptions I am relying on. I have been having similar difficulties but feel I understand better now, but could well be wrong.

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Location information

Maps Namadgi National Park
Places Cotter River, ACT

Species information

Sensitive
Rare or uncommon Native
Non-Invasive

Sighting information

4 - 15 Abundance
20 Dec 2020 03:35 PM Recorded on
MattM Recorded by

Additional information

10cm to 30cm Plant height
True In flower

Record quality

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