Glossary
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- Deciduous
- Not persisting, falling away in less than one year.
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- Decumbent
- Curved upward from a horizontal or inclined base, e.g. stems.
- Deflexed
- Turned downward abruptly.
- Deltoid
- Triangular in outline; shaped like the Greek letter delta.
- Dense
- Inflorescences having crowded spikelets.
- Depauperate
- Stunted.
- Dermal
- Having to do with the epidermis.
- Dichotomous Key
- A tool used in the identification of unknown plants by stating the conspicuous features by which the various taxa can be recognized. Two contrasting choices are presented at each step. One choice in the couplet is accepted and the other rejected, weaving a path to the indentity of the plant.
- Diffuse
- Open and much branched, widely spread.
- Digitate
- Parts (three or more) arising from the summit of a structure (e.g., branches of the Chloris inflorescence).
- Dilated
- Expanded, enlarged, or wider.
- Dioecious
- Unisexual, the staminate and pistillate flowers being on separate plants.
- Disarticulate (disarticulation)
- Separating at the nodes (joints) naturally at maturity.
- Discoid
- Resembling a disk or platter.
- Distichous
- Obviously 2-ranked and appearing as the rungs of a ladder.
- Divergent
- Extending away from each other by degrees.
- Dorsal
- Relating to the back of an organ, away from the axis; abaxial surface.