


Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang

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Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang, 59: 686 (2009)
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Biostatus
Nomenclature
Barkworth, S.W.L.Jacobs & H.Q.Zhang
Buchanan
(Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
2009
686
ICN
species
Connorochloa tenuis
Classification
Vernacular names
Synonyms
Descriptions
Prostrate flat, bronze-leaved stoloniferous ope n grass, rooting and shooting from nodes on stolons; branching extravaginal; upper culm internode greatly elongating after anthesis and the long weak culm trails along the ground. Leaf-sheath 5–7 cm, glabrous or sometimes retrorsely pilose. Ligule 0.25–0.3 mm, very finely ciliate. Collar glabrous, curved and thickened. Auricles ± 1 mm or smaller, clasping, with 1–2 long hairs. Leaf-blade 10–15 cm × 2 mm, bronzed, flat sometimes ± involute, abaxially glabrous, smooth, nerves evident, adaxially with short antrorse prickle teeth; margins prickle-toothed. Culm to 2 m, slender, trailing along ground, upper internode elongating after flowering sometimes reaching 1.5 m. Inflorescence 10–15 cm, of up to 15 spikelets. Spikelets 25–40 mm, of 6–8 florets. Glumes 9–15 mm, produced into barbed awn up to 3 mm, 3-nerved, keeled; margins shortly toothed. Lemma 6–10 mm, glabrous except for prickles on central nerve, near bifid apex and on margins below; awn 15–35 mm. Palea 7–10 mm, apex pointed and bifid. Rachilla 1.5–2.5 mm short hairy. Callus 0.5 mm, shortly hair surrounded. Lodicules 1.5– 1.7 mm, linear, irregularly hair tipped. Anthers 2– 3 mm, yellow. Gynoecium: ovary 1.25–1.5 mm; stigma-styles 2–2.5 mm. Caryopsis 4.5–5 mm, embryo 1 mm.
2n = 56
2n = 56
n = 28
2n = 56
2n = 56
2n = 56
2n = 56
2n = 56
Prostrate flat, bronze-leaved stoloniferous open grass, rooting and shooting from nodes on stolons; branching extravaginal; upper culm internode greatly elongating after anthesis and the long weak culm trails along the ground. Leaf-sheath 5-7 cm, glabrous or sometimes retrorsely pilose. Ligule 0.25-0.3 mm, very finely ciliate. Collar glabrous, curved and thickened. Auricles ± 1 mm or smaller, clasping, with 1-2 long hairs. Leaf-blade 10-15 cm × 2 mm, bronzed, flat sometimes ± involute, abaxially glabrous, smooth, ribs evident, adaxially with short antrorse prickle-teeth; margins prickle-toothed. Culm to 2 m, slender, trailing along ground, upper internode elongating after flowering sometimes reaching 1.5 m. Inflorescence 10-15 cm, of up to 15 spikelets. Spikelets 25-40 mm, of 6-8 florets. Glumes 9-15 mm, produced into barbed awn up to 3 mm, 3-nerved, keeled; margins shortly toothed. Lemma 6-10 mm, smooth except for prickles on central nerve, near bifid apex and on margins below; awn 15-35 mm. Palea 7-10 mm, apex pointed and bifid. Rachilla 1.5-2.5 mm, short hairy. Callus 0.5 mm, surrounded by short hairs. Lodicules 1.5-1.7 mm, linear, irregularly hair tipped. Anthers 2-3 mm, yellow. Gynoecium: ovary 1.25-1.5 mm; stigma-styles 2-2.5 mm. Caryopsis 4.5-5 mm; embryo 1 mm. 2n= 56.
Taxonomic concepts
Agropyron scabrum var. tenue Buchanan
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Agropyron scabrum var. tenue Buchanan
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Agropyron scabrum var. tenue Buchanan
Agropyron tenue (Buchanan) Connor
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Agropyron tenue (Buchanan) Connor
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Elymus tenuis (Buchanan) Á.Löve & Connor
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Elymus tenuis (Buchanan) Á.Löve & Connor
Collections
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
New Zealand
Canterbury Land District
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
New Zealand
Marlborough Land District
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
New Zealand
Nelson Land District
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
New Zealand
Otago Land District
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
New Zealand
Southland Land District
Connorochloa tenuis (Buchanan) Barkworth, S.W.L.Jacobs & H.Q.Zhang
New Zealand
Wellington Land District
Identification keys
Metadata
250130f1-bca4-4bb9-84d9-30ed86ddc85a
scientific name
Names_Plants
31 August 2011
31 August 2011