Hedypnois cretica

Hedypnois rhagadioloides

Hedypnois rhagadioloides is a plant from the sunflower family ( Asteraceae).

Description

Hedypnois rhagadioloides is a one-year stem - Therophyt, achieved the stature heights 3-25 cm. The stem is ascending, simple or wenigästig and often leafless. The leaves are usually dentate sinuate.

The heads are individually. The casing is initially cylindrical and double row. The outer bracts are 1-2, the inner 8 millimeters in size. They are linear and often have a reddish tip. The fruiting are all hardened, incurved banana-shaped and include the outer fruit. The outer fruit are bent and have a crown-like pappus of scales.

The flowering period extends from March to May

Occurrence

Hedypnois rhagadioloides occurs in the Mediterranean. In Crete, the species grows on fields, fallow land, crossing points, dunes and Phrygana at altitudes 0-1050 meters.

System

From Hedypnois rhagadioloides (L.) FWSchmidt (. . Syn. Hedypnois cretica (L.) Dum Cours ) three subspecies are known:

  • Hedypnois rhagadioloides subsp. monspeliensis Nyman: The plant is more or less bare. The stem is thin and elongated. The leaves are serrated. The shell is bald or nearly bald. The peduncles are cylindrical and fruiting hardly thickened.
  • Hedypnois rhagadioloides subsp. rhagadioloides: The stem is erect or decumbent and bare. The leaves are serrated and ragged. The sheath is glabrous or slightly bristly. The peduncles are fruiting to 1.5 millimeters thick, thickened club shaped and constricted below the condyle. Before flowering, the head is nodding.
  • Hedypnois rhagadioloides subsp. tubaeformis ( Ten. ) Hayek: The plant is hairy strong and bristly. The leaves are serrated or lyre-shaped. The sheath is hairy bristly. The peduncles are fruiting 3-6 millimeters thick, thickened club shaped and not constricted below the condyle. The head is erect before flowering.

Documents

  • Ralf Jahn, Peter Schoenfelder: Excursion Flora of Crete. With contributions by Alfred Mayer and Martin Scheuerer. Eugen Ulmer, Stuttgart 1995, ISBN 3-8001-3478-0, pp. 332-333.
Cichorioideae Cichorieae Genus Pappus (flower structure)
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