Amaranthus retroflexus

الوصف النباتي

Bracteoles : Rigid, 4 – 6 mm long, clearly surpassing the flowers and ending in a sharp, spine-like awn.

الأوراق

Leaves : Long-petiolate, oval-to-rhomboid, with prominent mid-ribs; slightly hairy along the veins on the underside.

الأزهار

Flowers : Pentamerous; sepals linear-cuneate, widening towards the top, membranous, whitish, truncate or slightly notched.، Inflorescence : Axillary glomerules coalesce into short, thick, densely packed spikes; the upper spikes form a stout, congested terminal panicle that tapers towards the tip.

الثمار والبذور

Fruit : Elliptic, laterally compressed pyxidium with a longitudinally wrinkled lid; seed black and shiny.

مواسم النبات

الفنلوجية

Flowering period : Summer to autumn (June – October).

الانتشار الموثق

Distribution in Lebanon & Syria : Widespread—from the coastal plain (Beirut, Saïda, Tripoli, Nahr el-Kelb) through foothill villages (Bikfaya, Deir el-Qamar) to the mid-mountain belt (Dimane, Ehden, ʿAïn Zehalta, Khan Sannine, Taʿnaïl, Ksara, Terbol) and scattered localities in western and southern Syria (Latakia, Slenfé, Houreiré, Quneitra, Soueida, Chahba).

Native range : Sub-cosmopolitan weed; originally native to North America, now naturalised throughout the Mediterranean region.

لمحة نباتية

بنية النبات

Life-form & habit : Tall, coarse annual that often reaches or exceeds 1 m; stem simple or sparingly branched, clothed in short, crisp, spreading hairs.

دورة الحياة

حولية

الفصيلة والتصنيف

الاسم العلمي المقبول

Amaranthus retroflexus

الفصيلة

قَطيفيّة

نباتات من الفصيلة نفسها

سويد

Suaeda fruticosa (L.) Forssk.

ملاح

Atriplex halimus

غبيرية

Chenopodium album

صر نقطي

Noaea mucronata