Chionochloa rigida (Raoul) Zotov
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Chionochloa rigida (Raoul) Zotov, New Zealand J. Bot. 1: 96 (1963)
Chionochloa rigida (Raoul) Zotov
Nomenclature
(Raoul) Zotov
Raoul
Zotov
1963
96
ICN
species
Chionochloa rigida
Classification
Vernacular names
Synonyms
Descriptions
Chionochloa rigida (Raoul) Zotov
Tall, stout, golden tussock with hairy fracturing sheaths and narrow, sweeping, long, deciduous leaves which form a dense litter. Sheaths to 30 cm, dark brown below, keeled, intemerves with abundant long and/or short hairs occasionally forming an abaxial ligule, fragmenting into short segments, tuft of hairs at apex to 2 mm. Ligule to 2 mm. Lamina tough, flat or shallowly U-shaped, adaxially usually with dense weft of short or long hairs at base, abundant prickle teeth above; margin thick, long hairy below; falling with part of sheath. Culms to 1.5 m, internodes infrequently long hairy; sheath hairy. Inflorescence open, pulvinate. Spikelets of up to 8 florets. Glumes glabrous, acute or very shortly awned, > nearest lemma lobes; lower to 14 mm, 1-3- nerved, upper to 16 mm 5-7-nerved, very occasionally long hairy on margin below. Lemma with dense hairs on margin and in all intemerves, rarely absent, > sinus. Palea to 8.5 mm. Callus to 1.5 mm, hairs to 3.5 mm. Rachilla to 1.5 mm. Lodicules to 0.75 mm. Gynoecium: ovary to 1 mm, stigma-styles to 3 mm. Caryopsis to 3.5 mm.
Chionochloa rigida (Raoul) Zotov
2n = 42
Chionochloa rigida (Raoul) Zotov
Tall, stout, golden tussock with hairy fracturing sheaths and narrow, sweeping, long, deciduous leaves which form a dense litter. Leaf-sheath to 30 cm, dark brown below, keeled, interribs with abundant long and/or short hairs occasionally forming a contra-ligule, fragmenting into short segments, apical tuft of hairs to 2 mm. Ligule to 2 mm. Leaf-blade tough, flat or shallowly U-shaped, adaxially usually with dense weft of short or long hairs at base, abundant prickle-teeth above; margin thick, long hairy below; falling with part of sheath. Culm to 1.5 m, internodes infrequently long hairy; sheath hairy. Inflorescence open, pulvinate. Spikelets of up to 8 florets. Glumes glabrous, acute or very shortly awned, ≥ nearest lemma lobes; lower to 14 mm, 1-3-nerved, upper to 16 mm, 5-7-nerved, very occasionally long hairy on margin below. Lemma densely hairy on margin and in all internerves, hairs rarely absent, > sinus. Palea to 8.5 mm. Callus to 1.5 mm, hairs to 3.5 mm. Rachilla to 1.5 mm. Lodicules to 0.75 mm. Gynoecium: ovary to 1 mm; stigma-styles to 3 mm. Caryopsis to 3.5 mm. 2n= 42. Fig. 16.
Taxonomic concepts
Chionochloa rigida (Raoul) Zotov
Chionochloa rigida (Raoul) Zotov
Danthonia flavescens Hook.f.
Chionochloa rigida (Raoul) Zotov
Danthonia raoulii Steud.
Chionochloa rigida (Raoul) Zotov
Danthonia raoulii var. flavescens (Hook.f.) Hack.
Chionochloa rigida (Raoul) Zotov
Danthonia rigida Raoul
Chionochloa rigida (Raoul) Zotov
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Identification keys
Metadata
e6fda666-e704-411a-8921-b3baddf56544
scientific name
Names_Plants
1 January 2000
28 February 2007