Trifolium bullatum
| Trifolium bullatum | ||||||||||||
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| Trifolium bullatum | ||||||||||||
| Boiss. & Hausskn. |
Trifolium bullatum is a species of plant from the genus clover ( Trifolium ). It is placed in the genus in the section Vesicaria .
description
Trifolium bullatum is a one-year , herbaceous plant . The stem axis stands upright and branches off from the base. It is hairless or almost hairless.
The lower leaves are long stalked, the upper shorter. The leaves are three-fused, the individual pinna are about 8 millimeters long and about 4 millimeters wide. The blades are inverted egg-shaped and slightly notched at the tip. The base tapers off. The leaf margin is finely indented. The stipules are egg-shaped, green ribbed and more than half of them fused with the petiole that they enclose. The free part is lanceolate, protruding and with a long tip.
The inflorescences are 10 to 15 flowered and stalked about 1 centimeter long. To the anthesis , the inflorescence axes stand upright and the inflorescences measure between 4 and 9 millimeters. When the fruit ripens, the axes are bent downwards, the inflorescences then measure 5 to 8 millimeters in diameter.
The calyx is 2 to 3 millimeters long. It is tubular in the lower 2 millimeters. The calyx teeth are 1 millimeter long or shorter. As the fruit ripens, they become prickly or thickened misshapen. The crown is about 2 millimeters long and pink or white.
The legumes are about 1.2 millimeters long, single-seeded and lenticular. The seeds are spherical, between 1.1 and 1.5 millimeters in diameter and are yellow in color. The surface is shiny.
The number of chromosomes is 2n = 16.
distribution
The distribution area of Trifolium bullatum extends over Turkey, Syria, Iraq, Iran, Israel, Jordan to Egypt. The species grows in fields and along roadsides.
ecology
Trifolium bullatum is self-pollinating .
literature
- Michael Zohary, David Heller: The Genus Trifolium . The Israel Academy of Sciences and Humanities , Jerusalem 1984, ISBN 978-965-208-056-1 , pp. 308 f .
- John M. Gillett, Norman L. Taylor, M. Gillett: The World of Clovers . Iowa State University Press , Ames 2001, ISBN 978-0-8138-2986-9 , pp. 81 f .