Schoenus nigricans

الوصف النباتي

الأوراق

Leaves: Basal, triangular, erect or slightly arched, usually shorter than the culms; sheaths glossy brown.

الأزهار

Inflorescence & flowers: Capitate, composed of 5 – 15 sessile or subsessile spikelets, shiny brown-black to copper-coloured, acute, few-flowered. Glumes 6 – 7, lanceolate, hyaline-margined, keeled. Perigonal bristles 3 – 6, brown, much shorter than the achene.

الثمار والبذور

Fruit: Achene white, shining, obovoid, compressed, biconvex, bicarenate, about 3 mm long, transversely striated.

مواسم النبات

الفنلوجية

Phenology: Flowers April – October.

الانتشار الموثق

Lebanese distribution: Nahr Beyrouth, Bouar, ‘Abey, Broummana, Bikfaya, Qrayé, Terbol, Jébrayé, Bcharré, Faraya, Jabal Kneissé, ‘Aqoura, Outaya, Khatouniyé.

Native range: Albania, Algeria, Austria, Bahamas, Baleares, Baltic States, Belarus, Belgium, Belize, Bulgaria, California, Cape Provinces, Chad, Corse, Cuba, Cyprus, Czechia-Slovakia, Denmark, Dominican Republic, DR Congo, East Aegean Is., Eritrea, Ethiopia, Florida, France, Germany, Great Britain, Greece, Gulf States, Honduras, Hungary, Iran, Iraq, Ireland, Italy, Jamaica, Kirgizstan, Kriti, KwaZulu-Natal, Lebanon-Syria, Libya, Mexico NE–SW, Morocco, Netherlands, Nevada, New Mexico, Nicaragua, North Caucasus, Northern Provinces, NW. Balkan Peninsula, Oman, Pakistan, Palestine, Poland, Portugal, Romania, Sardegna, Saudi Arabia, Sicilia, Sinai, Somalia, South European Russia, Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Texas, Transcaucasus, Tunisia, Turkmenistan, Turks-Caicos Is., Turkey, Turkey-in-Europe, Ukraine, Uruguay, Uzbekistan, West Himalaya, Yemen, Zambia, Zimbabwe (POWO).

Extinct in: Norway (POWO).

لمحة نباتية

بنية النبات

Life-form & habit: Perennial sedge with a cespitose rhizome producing dense tufts of flowering and sterile shoots. Culms erect, 20 – 80 cm, stiff, smooth, striated, leafless except at the base where enclosed by shiny reddish-brown or blackish sheaths.

دورة الحياة

معمرة

الفصيلة والتصنيف

الاسم العلمي المقبول

Schoenus nigricans

الفصيلة

السُّعديّات

نباتات من الفصيلة نفسها

Cyperus latifolius

Carex divulsa

Carex flacca

Carex otrubae