Andropogon distachyos

الوصف النباتي

الأوراق

Leaves : Sheaths rounded, glabrous or slightly hairy; ligule short, truncate, long-ciliate; blades linear, green, scabrous on the margins, upper surface variably ciliate; the uppermost leaf often forms a spathiform sheath enclosing the panicle.

الأزهار

Inflorescence & flowers : Panicle typically composed of two robust racemes (5–10 cm), one sessile and one naked at the base for 5–10 mm. Internodes subcuneiform, thick, glabrous on one side and long-hairy on the other. Sessile spikelets hermaphroditic (except occasionally the basal one), broadly lanceolate, pale green or purplish-washed; lower glume bicarinate, glabrous or slightly pubescent, with two short teeth; upper glume shorter, softly ciliate, bidentate with a fine awn (5–6 mm). Sterile lemma hyaline (5–6 mm). Fertile lemma with a slender geniculate awn ca. 2 cm. Pedicelled spikelets narrower, with short awns.

مواسم النبات

الفنلوجية

Phenology : Flowers from March to October.

الانتشار الموثق

Lebanese distribution : Coastal stations at Echelles de Tyr, Iskandérouné, Beirut and surroundings, Zouk Mikhayel, Chekka, Tripoli; lower and middle mountain zones including ‘Abey, Jamhour, ‘Aley, Kahalé, Ghazir, Deir-el-Qamar, Broummana.

Native range : Mediterranean, tropical Africa, Canary Islands, southern Europe, and West Asia

لمحة نباتية

بنية النبات

Life-form & habit : Cespitose grass, 30–75 cm tall; culms erect, simple or branched at the base, with glabrous nodes.

الفصيلة والتصنيف

الاسم العلمي المقبول

Andropogon distachyos

الفصيلة

نجيلية

نباتات من الفصيلة نفسها

Imperata cylindrica

Lolium rigidum

بوص جنوبي

Phragmites australis subsp. australis (Cavanilles) Trinius ex Steudel

مكانس

Piptatherum miliaceum E.Fourn., 1866