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Austrostipa nullanulla (J.Everett & S.W.L.Jacobs) S.W.L.Jacobs & J.Everett
Family Poaceae
Common name: Club Spear-grass

Austrostipa nullanulla (J.Everett & S.W.L.Jacobs) S.W.L.Jacobs & J.Everett APNI*

Synonyms: Stipa nullanulla J.Everett & S.W.L.Jacobs APNI*

Description: Small, caespitose perennial to 0.5 m high.

Leaves with ligule membranous, 1–10 mm long, laciniate, with woolly cilia; blade usually rolled, rigid, 2–3 mm wide, upper surface strongly ribbed, margins strongly scabrous.

Panicle delicate and spreading, 13–19 cm long. Spikelets narrowly gaping at maturity, widely gaping after floret disarticulation, 9–11 mm long (excluding awn). Glumes subequal, acute to shortly acuminate. Lemma 5–6 mm long, smooth, with an antrorsely scabrous neck, dark brown with yellow nerves; coma sparse, 1–1.5 mm long in 2 tufts; lobes absent. Callus straight, silky. Awn gently twice bent, 5–7 cm long. Palea subequal to the lemma.

Flowering: Flowers in response to rain.

Distribution and occurrence: Occurs in South Far Western Plains (N.S.W.); also Victoria and South Australia.

Restricted to gypseous rises; palatable to sheep and rabbits and now confined to protected sites.
NSW subdivisions: SFWP
Other Australian states: S.A. Vic.
Threatened species: NSW BCA: Endangered
AVH map***

Text by SWL Jacobs and J Everett 1993 (as Stipa)
Taxon concept: Flora NSW vol 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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