GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Anthaenantiopsis fiebrigii

HABIT Perennial; caespitose. Rhizomes short. Culms erect; 65–150 cm long. Culm-internodes elliptical in section; 20–30 cm long; distally glabrous. Culm-nodes brown; glabrous. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths 12–27 cm long; glabrous on surface to pubescent; outer margin glabrous, or hairy. Ligule an eciliate membrane; 0.3–1.2 mm long. Leaf-blades linear, or lanceolate; 9–45 cm long; 5–10 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy; hairy adaxially. Leaf-blade margins scabrous. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes. Peduncle 20–60 cm long; glabrous.

Racemes 12; borne along a central axis; distant; erect; unilateral; 1–6.5 cm long. Central inflorescence axis 15–27 cm long; hirsute. Rhachis semiterete; hirsute on surface. Spikelet packing crowded.

Spikelets in pairs, or in threes. Fertile spikelets pedicelled. Pedicels clavate; angular; unequal; ciliate.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; 3–3.6 mm long; 1.2 mm wide; falling entire.

GLUMES Glumes shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.3–1 mm long; 0.1–0.33 length of spikelet; hyaline; 0 -veined. Lower glume lateral veins absent. Lower glume surface hirsute. Upper glume oblong; 2.6–2.8 mm long; 0.9–0.95 length of spikelet; membranous; without keels; 5–7 -veined. Upper glume lateral veins ribbed. Upper glume surface hirsute; with tubercle-based hairs. Upper glume margins ciliate. Upper glume apex obtuse, or acute.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; oblong; 2.8–3.3 mm long; 1 length of spikelet; membranous; 5–7 -veined; ribbed; hirsute. Palea of lower sterile floret 3–3.3 mm long; 1 length of lemma. Fertile lemma elliptic; 2.9–3.3 mm long; 1 mm wide; coriaceous; yellow; shiny; without keel. Lemma margins involute. Lemma apex acute; papillose and pubescent. Palea gaping; 1 length of lemma; coriaceous.

FLOWER Lodicules 2; 0.3 mm long; truncate. Anthers 3; 2.3–2.4 mm long.

DISTRIBUTION South America: western South America and southern South America.

NOTES Paniceae. Fl Paraguay 1997.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.