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Thinopyrum acutum (DC.) Banfi

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Thinopyrum acutum (DC.) Banfi, Nat. Hist. Sci. 5: 59 (2018)
Thinopyrum acutum (DC.) Banfi

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Exotic
Wild
New Zealand
Political Region

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(DC.) Banfi
DC.
Banfi
2018
59
ICN
species
Thinopyrum acutum

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acutum

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Bluish grey, tufted, rigid perennial, 35-125 cm, sometimes forming large patches from strongly spreading wiry rhizomes. Leaf-sheath glabrous, subcoriaceous, greyish to light brown, auricles 0.5-1-(1.5) mm, submembranous sometimes long hairy. Ligule c. 0.5 mm, scarious. Collar finely hairy. Leaf-blade 5-20 cm, usually tightly inrolled, sometimes flat and up to 7 mm wide, stiff, abaxially smooth, adaxially with prominent close-set scabrid ribs, tip acute, hard, margins scabrid. Culm 25-75 cm, erect, or geniculate below, internodes glabrous. Spike 5-20 × 0.5-1-(2) cm, erect, with spikelets very close-set, but 1-2 lowermost more distant; rachis with a few prickle-teeth on margins. Spikelets 10-20 mm, pale green, oblong or elliptic-oblong, 3-10-flowered, > internodes. Glumes ± equal, disarticulating, 7-12 mm, 5-7-nerved, lanceolate-oblong, obtuse or acute, coriaceous and very tough, scabrid on mid-nerve almost throughout or near tip. Lemma 7.5-11 mm, 5-nerved, coriaceous, lanceolate-oblong, keeled above, smooth apart from a few prickle-teeth on keel near tip, obtuse to subacute, often mucronate, rarely with fine straight awn to 7 mm. Palea ≤ lemma, keels finely, closely ciliate-scabrid, glabrous elsewhere except adaxially hairy apex. Callus c. 0.3 mm, glabrous. Rachilla to 1.5 mm, shortly stiff hairy. Lodicules 1.5 mm, triangular, shortly ciliate. Anthers 5-6 mm. Gynoecium: ovary 0.7-1.0 mm; stigma-styles 2.5-3 mm. Caryopsis 4-6 mm; embryo 0.5 mm.

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Elytrigia pycnantha (Godr.) Á.Löve
Thinopyrum acutum (DC.) Banfi
Thinopyrum acutum (DC.) Banfi
Thinopyrum acutum (DC.) Banfi
Triticum acutum DC.
Thinopyrum acutum (DC.) Banfi
Triticum pycnanthum Godr.
Thinopyrum acutum (DC.) Banfi

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New Zealand
Canterbury Land District
New Zealand
Gisborne Land District
New Zealand
Hawke's Bay Land District
New Zealand
North Auckland Land District
New Zealand
Otago Land District
New Zealand
South Auckland Land District
New Zealand
Wellington Land District
Thinopyrum acutum (DC.) Banfi
New Zealand
Hawke's Bay Land District

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b3bab908-4dba-45df-b9df-02f1668a28a1
scientific name
Names_Plants
20 April 2023
25 May 2023
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