Deciduous, falling at the end of the season.
Declined, bent or curved downward or forward.
Decumbent, reclining, but with summit ascending.
Decurrent, running down the stem; applied to a leaf with blade prolonged below its insertion.
Deflexed, bent or turned abruptly downward.
Dehiscing, opening by valves, slits, or regular lines; as a capsule or an anther.
Deltoid, having the shape of the Greek letter delta; broadly triangular.
Denticulate, minutely toothed.
Depauperate, impoverished in size by unfavorable surroundings.
Dichotomous, forking regularly by pairs.