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Amphibromus pithogastrus S.W.L.Jacobs & Lapinpuro
Family Poaceae
Common name: Plump Swamp Wallaby-grass

Amphibromus pithogastrus S.W.L.Jacobs & Lapinpuro APNI*

Synonyms: Amphibromus sp. A APNI*

Description: Tufted perennial to 1 m high, occasionally with corm-like swellings on lower nodes; culms erect, terete to flattened, 1–2 mm wide, glabrous, 2- or 3-noded.

Leaves with sheath glabrous, ribbed; ligule acute, 2–5 mm long; blade 1.5–5 mm wide, glabrous to minutely scabrous, deeply ribbed on upper surface.

Panicle erect, contracted, to 25 cm long. Spikelets 8–15 mm long with 2–6 bisexual florets. Glumes unequal, green, with broad straw-coloured margins; lower 3–5-nerved, upper 5–7-nerved. Lemmas papillose, 5.6–7.5 mm long, 7-nerved, swollen; apex 4-toothed; awn arising 25–45% of the lemma length from the lemma tip, bent and twisted, 9–16 mm long. Palea 55–70% the length of the lemma, glabrous.


Type
Specimen

Flowering: in response to rain or flooding.

Distribution and occurrence: Grows in seasonally swampy areas.
NSW subdivisions: NT, CT, ST, SWS
Other Australian states: Vic.
AVH map***

Text by S. W. L. Jacobs & S. M. Hastings
Taxon concept: Flora of NSW 4 (1993)


APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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