Scirpus polystachyus

Large-head Club-rush at Tinderry, NSW

Scirpus polystachyus at Tinderry, NSW - 19 Mar 2023
Scirpus polystachyus at Tinderry, NSW - 19 Mar 2023
Scirpus polystachyus at Tinderry, NSW - 19 Mar 2023
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Identification history

Scirpus polystachyus 20 Mar 2023 JaneR
Scirpus polystachyus 19 Mar 2023 Tapirlord
Lomandra longifolia 19 Mar 2023 CarbonAI
Bolboschoenus sp. 19 Mar 2023 MattM

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User's notes

Growing on edge of creek.

1 comment

JaneR wrote:
   20 Mar 2023
This might reduce future frustrations:
Most useful (field) characteristic for separating Bolboschoenus fluviatilis (the moist robust Bolboschoenus) and Scirpus polystachys is presence (Bolboschoenus) or absence (Scirpus) of involucral bracts - as distinct from leaves. Yes, there are other characteristics, and also size attributes (size of nut, width of leaf, culm diameter, spikelet length: these help).
Matt's photos show no sign of involucral bracts (immediately below inflorescence) tho admittedly a bit obscured in main photo.
I'm afraid carbonAI has a LONG way to go !

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