خنشار كبير

الوصف النباتي

Sori and sporangia: Sori marginal, continuous along the leaf edge; indusium double — the false indusium formed by the reflexed lamina margin and a true indusium beneath it. Sporangia numerous, globose, yellow-brown; spores trilete, finely reticulate.

الأوراق

Leaves (fronds): Tri- to quadripinnate, triangular in outline, 30–150 × 20–80 cm; pinnae opposite or subopposite, lower ones distinctly stalked and larger; rachis and stipe brownish or purplish, covered with short, crisp hairs. Texture firm, herbaceous when young, coriaceous when mature.

مواسم النبات

الفنلوجية

Phenology: Fronds emerge in spring (March–April) and persist until late autumn; sporulation from June to September.

الانتشار الموثق

Lebanese distribution: Frequent in the Mount Lebanon range , particularly in Barouk , Ehden , Bcharreh , Ain Zhalta , and Sannine , and extending into the Anti-Lebanon near Rashaya . Mouterde (1966) described it as the most common fern in montane forests , forming large colonies under Pinus brutia , Quercus cerris , and Cedrus libani .

Native to: Albania, Algeria, Altay, Amur, Antipodean Is., Austria, Azores, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Buryatiya, Canary Is., Central European Russia, Chatham Is., Chita, Corse, Cyprus, Czechia-Slovakia, Denmark, East European Russia, Ethiopia, Finland, France, Germany, Great Britain, Greece, Hungary, Iran, Ireland, Irkutsk, Italy, Kamchatka, Kazakhstan, Kermadec Is., Khabarovsk, Krasnoyarsk, Kriti, Krym, Kuril Is., Lebanon-Syria, Madeira, Magadan, Mongolia, Morocco, Netherlands, New Zealand North, New Zealand South, North Caucasus, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Palestine, Poland, Portugal, Romania, Sakhalin, Sardegna, Selvagens, Sicilia, Socotra, South European Russia, Spain, Sweden, Switzerland, Transcaucasus, Tunisia, Tuva, Türkiye, Türkiye-in-Europe, Ukraine, West Siberia, Yemen (POWO).

Introduced into: Egypt, South Australia (POWO).

الارتفاع الموثق

الارتفاع

000 m

لمحة نباتية

بنية النبات

Life-form & habit: Robust perennial fern with long, creeping, subterranean rhizomes that give rise to large, solitary fronds. Fronds erect or arching, 50–250 cm tall, forming extensive colonies through vegetative spread.

دورة الحياة

معمرة

الفصيلة والتصنيف

الاسم العلمي المقبول

Pteridium aquilinum

الفصيلة

سراخس التبن العطرية