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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Eremopyrum bonaepartis
HABIT Annual. Culms erect, or decumbent; 10–30 cm long. Leaf-sheath oral hairs lacking. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades flat, or conduplicate, or convolute; 5–10 cm long; 3–4 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex acute.
INFLORESCENCE Inflorescence composed of racemes; exserted. Peduncle pubescent above.
Racemes 1; single; oblong; bilateral; 1.5–4 cm long. Rhachis fragile at the nodes. Spikelet packing broadside to rhachis; crowded. Rhachis internodes oblong; falling with spikelet above.
Spikelets pectinate; solitary. Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 15–20 mm long; falling entire; deciduous with accessory branch structures; readily shedding fertile florets.
GLUMES Glumes similar; shorter than spikelet. Lower glume lanceolate; 7–12 mm long; 1 length of upper glume; coriaceous; 1-keeled; keeled all along; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume surface glabrous, or pilose. Lower glume apex acute. Upper glume lanceolate; 7–12 mm long; 0.75 length of adjacent fertile lemma; coriaceous; 1-keeled; keeled all along; 1 -veined. Upper glume primary vein conspicuous; scabrous. Upper glume lateral veins absent. Upper glume surface glabrous, or pilose. Upper glume apex acute.
FLORETS Fertile lemma lanceolate; 12–15 mm long; coriaceous; keeled; keeled above; 5 -veined. Lemma surface smooth, or scabrous; rough above; glabrous, or pilose. Lemma apex acuminate; muticous, or awned; 1 -awned. Principal lemma awn 0–3 mm long overall. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; ciliate. Ovary with a fleshy appendage below style insertion; pubescent on apex.
FRUIT Caryopsis with adherent pericarp; oblong; sulcate on hilar side; hairy at apex; apex fleshy. Embryo 0.2 length of caryopsis. Hilum linear; 1 length of caryopsis.
DISTRIBUTION Africa: north. Asia-temperate: Soviet Middle Asia, Caucasus, western Asia, Arabia, and China. Asia-tropical: India.
NOTES Triticeae. Fl Iraq.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
