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Digitaria ischaemum (Schreb.) Muhl.

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Digitaria ischaemum (Schreb.) Muhl. (1817)
Digitaria ischaemum (Schreb.) Muhl.

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Exotic
Wild
New Zealand
Political Region

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(Schreb.) Muhl.
Schreb.
Muhl.
1817
ICN
species
Digitaria ischaemum

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ischaemum

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Digitaria ischaemum (Schreb.) Muhl.

Summer annuals, forming loose or compact dark purple-green tufts. Leaf-sheath submembranous, striate, glabrous or rarely with a few hairs on margins, light green, folded. Ligule 1-1.5-(2) mm, membranous, glabrous, ± truncate, erose. Leaf-blade 3-6 cm × 3-5 mm, lanceolate, ± rounded at base, glabrous; margins minutely scabrid throughout with a few long hairs near ligule. Culm 7-20-(30) cm, slender, geniculate-ascending, spreading or prostrate, internodes glabrous. Racemes 2-4-(5), 2.5-10 cm, subdigitate, very slender, spreading at maturity; rachis flat, 0.5-1 mm wide, narrowly winged, sparsely long-hairy at base, margins finely scabrid; pedicels ± 3-angled, rarely flattened, sparsely, finely prickle-toothed. Spikelets c. 2 mm, close-set in pairs or triplets, shortly, unequally pedicelled, elliptic or oblong-elliptic, hairs minute, numerous, swollen-tipped. Lower glume 0, or a minute scarious rim, upper c. 2 mm, ≈ spikelet, submembranous, 3-(5)-nerved, internerves with bands of dense short fine hairs. Lower floret: lemma = spikelet, submembranous, 5-nerved, nerves glabrous, outer internerves sparsely to densely fine-hairy; palea minute. Upper floret: lemma = spikelet, dark chestnut-brown, glabrous, acute, margins wide, hyaline, enfolding palea; palea of similar texture to lemma, margins widened below to enfold caryopsis; anthers 0.4-0.7 mm; stigmas purple; caryopsis c. 1.5 × 0.8 mm, oblong.

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Digitaria ischaemum (Schreb.) Muhl.
Digitaria ischaemum (Schreb.) Muhl.

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Digitaria ischaemum (Schreb.) Muhl.
New Zealand
Canterbury Land District
Digitaria ischaemum (Schreb.) Muhl.
New Zealand
Marlborough Land District
Digitaria ischaemum (Schreb.) Muhl.
New Zealand
North Auckland Land District
Digitaria ischaemum (Schreb.) Muhl.
New Zealand
Otago Land District
Digitaria ischaemum (Schreb.) Muhl.
New Zealand
South Auckland Land District
Digitaria ischaemum (Schreb.) Muhl.
New Zealand
Wellington Land District

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7eff7985-5640-4862-84c2-0b2a178f96b0
scientific name
Names_Plants
1 January 2000
17 February 2016
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