Abstract

Bean trefoil (Anagyris foetida L.), Leguminosae, is a Mediterranean element and summer-deciduous shrub species. In this study, about 5.5-month phenological observations were made on a bean trefoil population in the Kahramanmaras region, southern Turkey, and the time and duration of phenological phases of the species were tried to be determined. In bean trefoil population of the region, the order of occurrence of main phenological phases was as follows: The beginning of bud burst (January 28), full leafing (March 25), full flowering (March 31), full fruit formation (May 22), full fruit ripening and full leaf colouring (June 18), full leaf fall and full fruit fall (June 25). The species shed its leaves in the second half of June, depending on the beginning of dry period in the region. In bean trefoils, the leaf duration (166-day) and phenological vegetation period (141-day) were quite short. It was determined that the species also pollinated by birds as well as insects and exhibited cauliflory. Bean trefoil could be regarded as an indicator plant for the beginning of dry period in the region.

Key words: Anagyris foetida, phenology, phenological observation, phenological phases.