Bromus sewerzowii

HABIT Annual. Culms geniculately ascending; 30–70 cm long. Culm-nodes pubescent. Ligule an eciliate membrane. Leaf-blades flat, or conduplicate, or involute; 7–15 cm long; 3–4 mm wide. Leaf-blade surface scabrous; pubescent; hairy on both sides. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle. Peduncle pubescent above.

Panicle open; oblong; interrupted; dense; 5–10 cm long; 3–4 cm wide.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels ciliate.

FERTILE SPIKELETS Spikelets comprising 6–10 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 15–20 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; shorter than spikelet. Lower glume elliptic; 5–7 mm long; 0.75–0.9 length of upper glume; membranous; without keels; 3–5 -veined. Lower glume apex acuminate. Upper glume elliptic; 6–8 mm long; 0.66–0.75 length of adjacent fertile lemma; membranous; without keels; 5–7 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 9–11 mm long; chartaceous; without keel; 5–7 -veined. Lemma surface smooth, or scaberulous; pubescent; hairy above. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; 3–4 mm long overall. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3. Ovary with a fleshy appendage above style insertion; pubescent on apex.

FRUIT Caryopsis with adherent pericarp; hairy at apex; apex fleshy. Hilum linear.

DISTRIBUTION Asia-temperate: Soviet Middle Asia, western Asia, and China.

NOTES Bromeae. Fl Iran 1995.

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