طردان هلبي

الوصف النباتي

الأوراق

Leaves: Lyrate-pinnatipartite; basal leaves with 1–2 short lateral lobes much smaller than the terminal lobe; terminal lobe obovate-oblong to lanceolate, dentate, sparsely hairy to glabrescent.

الأزهار

Inflorescence & flowers: Peduncles long, bearing heads 10–15 mm across. Bracts white or slightly rufescent, orbicular to elliptic-lanceolate, abruptly ending in a mucro (1–2 mm). Involucel 4–5(7) mm, glabrous or minutely pubescent, with 4 long teeth at the angles reaching or exceeding half the body, and 4 very short or absent intermediate teeth. Corolla usually white (sometimes bluish).

الثمار والبذور

Fruit: Achenes 3–4 mm, crowned by the persistent involucel.

مواسم النبات

الفنلوجية

Phenology: Flowers June–July.

الانتشار الموثق

Lebanese distribution: Frequent across the Beqaa and Anti-Lebanon (Baalbeck, Qa‘a, Ras Baalbeck), Hermel.

Syrian distribution: Hauran, Jeziré, Damascus plain, Palmyra, Aleppo.

Native range: Iran, Iraq, Lebanon–Syria, Turkey (POWO).

⚠️ Diagnostic note: Easily distinguished from other Levantine Cephalaria by its annual habit , lyrate-pinnatipartite leaves with small basal lobes, and involucral teeth exceeding half the length of the involucel.

لمحة نباتية

بنية النبات

Life-form & habit: Annual, 30–60 cm, with erect, subangular stems, branched with short, ascending branchlets. Stems covered with fine reddish tubercles, often bearing deflexed white hairs, especially toward the base.

دورة الحياة

حولية

الفصيلة والتصنيف

الاسم العلمي المقبول

Cephalaria setosa

الفصيلة

خمانية

نباتات من الفصيلة نفسها

Centranthus longiflorus

Cephalaria joppensis

سيوان يافا

Cephalaria joppensis (Rchb.) Coult.

سيوان سوري

Cephalaria syriaca (L.) Schrad.