Deflexed. Bent or turned abruptly downward.
Dehiscent. Opening regularly by valves, slits, etc., as a capsule or anther.
Deltoid. Shaped like the Greek letter Δ
Dentate. Toothed, usually with the teeth directed outward.
Denticulate. Minutely dentate.
Depressed. Somewhat flattened from above.
Di-, Dis-. A Greek prefix signifying two or twice.
Diadelphous (stamens). Combined in two sets.
Diandrous. Having two stamens.
Dicarpellary. Composed of two carpels.