Phenology of Asteraceae in selected districts of central Uganda

摘要

The phenology of the family Asteraceae in four habitat types (dry grassland, wet grassland, cultivated land and roadside) within three selected districts, that is, Kampala, Migyera and Nakasongola were studied for 1 year (2002). Flowering is partly dependent on mean annual rainfall. In all the habitats, flowering occurs throughout the year, but with a peak between August and November. Troughs in flowering occurred during the beginning of the wet season. The flowering season mainly starts between Julyand August and ends between January and February. Fruiting is independent of mean annual rainfall, but dependent on seasonal rainfall. Fruiting occurs throughout the year with a peak between August and October and low species fruiting between January and April.