بحث

Rhagadiolus stellatus

الفصيلة نجمية · Asteraceae

الوصف النباتي

الأوراق
Leaves: Basal leaves in a rosette, oblong to oblanceolate, 30–90 × 6–20 mm, pinnatifid or dentate; cauline leaves smaller, sessile, semi-amplexicaul, and entire or coarsely toothed. Indumentum sparse and variable.
الأزهار
Inflorescence & flowers: Capitula numerous, solitary on slender peduncles, forming a lax, paniculate inflorescence. Involucre cylindrical, 8–15 mm long; inner bracts linear-lanceolate, outer ones shorter, spreading at fruiting. Ligules bright yellow, 7–10 mm long, sometimes flushed red beneath; all florets fertile. Receptacle naked.
الثمار والبذور
Fruit: Achenes heteromorphic — outer ones short, thick, and beakless; inner achenes elongated, narrowed into a slender beak bearing a pappus of soft, white hairs; surface transversely rugose or finely reticulate.

الموائل والبيئة

Habitat & elevation: Dry open slopes, fallow fields, and rocky roadsides on calcareous or sandy soils; 0–1 600 m. Prefers sunny, well-drained habitats and is often abundant in disturbed spring grasslands.

التربة والركيزة

الرطوبة

الإضاءة

  • مواقع مشمسة

مواسم النبات

الفنلوجية
Phenology: Flowers and fruits from March to June.

الانتشار الموثق

Lebanese distribution: Common and widespread from the coast to mid-elevations. Reported by Mouterde (1969) from Beirut , Aley , Zahlé , Barouk , Baskinta , and Rashaya . Especially abundant in dry fields, foothills, and rocky slopes of Mount Lebanon and the Beqaa.

Native to: Albania, Algeria, Baleares, Belgium, Bulgaria, Canary Is., Corse, Cyprus, East Aegean Is., Egypt, France, Germany, Great Britain, Greece, Iran, Iraq, Italy, Kriti, Lebanon-Syria, Libya, Madeira, Morocco, North Caucasus, NW. Balkan Pen., Palestine, Poland, Portugal, Sardegna, Sicilia, Sinai, Spain, Switzerland, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe (POWO).

Introduced into: California (POWO).

الارتفاع الموثق

الارتفاع
600 m

لمحة نباتية

بنية النبات
Life-form & habit: Annual herb, 10–45 cm tall, slender and branched from the base, forming loose tufts. Stems erect or ascending, angular, glabrous or finely pubescent, containing milky latex.
دورة الحياة
حولية

الفصيلة والتصنيف

الاسم العلمي المقبول
Rhagadiolus stellatus
الفصيلة
نجمية

نباتات من الفصيلة نفسها

المظهر
خط النص
حجم النص
صغير100%كبير
معاينة مباشرة

وقد كان في الهجران لو كنتَ ناسِيًا
رَمِيمَ، وَهَلْ يُنْسَى رَبِيعٌ وَصَيِّفُ

Salvia lanigera Poir.