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Glossary D DECIDUOUS
DECIDUOUS: Plants and trees which shed their leaves in winter.
DECUMBENT: Lying flat (usually with tip raised).
DIGITATE LEAF: Leaflets radiating from the leaf-stalk.
DIMORPHIC: Flowers that appear in two forms such as the primrose, in which one form has a short style with anthers near the mouth of the corolla-tube , and the other form has a long style and anthers midway down the tube.
DISC : The central part of a radiate flower in which the florets are tubular