deciduous
Marked leaflessness in winter, and greater than 90% leaves lost by beginning of spring flush.
decrescent
Diminishing.
decumbent
With a prostrate or curved base and an erect or ascending tip.
decurrent
Attached by a broadened base.
decurved
Curved downward.
deflexed
Bent abruptly downward.
dehiscence
The time of opening at maturity to release the contents, e.g., a capsule releasing the seeds.
dehiscent
Splitting open at maturity to release contents (of a fruit).
deltoid
Shaped broadly like an equilateral triangle.
dentate
Toothed along the margin with the teeth pointing outward, not forward.
denticles
Minute teeth.
denticulate
Having a very finely toothed margin.
dichotomous
Divided into two equal branches.
digitiform
Finger-like.
dioecious
Having male and female flowers on separate plants of the same species.
diploid
With two complete sets of chromosomes in each cell.
disarticulating
Separating at a joint.
discoid
Disc-shaped.
disjunct
A species or other taxonomic group that occupies areas that are widely separated and scattered and therefore have a discontinuous distribution.
distal
Toward the apex, away from the point of attachment (cf. proximal).
distichous
In two rows on opposite sides of the axis.
divaricating
Branching at a very wide angle with stiff intertwined stems.
domatia
Small structures on the lower surface of a leaf in some woody dicotyledons, located in the axils of the primary veins and usually consisting of depressions partly enclosed by leaf tissue or hairs.
dorsal
Of the back or outer surface relative to the axis. (cf. ventral).
drupe
A stone fruit, the seed enclosed in a bony covering (endocarp) which is surrounded by a + fleshy layer (mesocarp).
