decurrent
9.9
Part of a plant that runs down the stem, as in some leaves and gills
- adjective
- /dɪˈkɜːrənt/
- Specialized
:
decurrente
- The leaves of the decurrent plant extend downwards, wrapping around the stem.
Examples
-
Scientists are closely watching what happens to the decurrent false aster (Boltonia decurrens), a shrub on the federal threatened species list.
Academic text (1993) -
Scientists were concerned that many decurrent false asters died before they flowered and produced seeds.
Academic text (1993) -
In botanical studies, the decurrent markings on the stem indicate how the leaves grow.
-
The decurrent growth of the vine helps it cling better to the supporting structure.
Surface Forms
decurrent positive
Morphology
Etymology
Decurrent comes from de- meaning 'down' and the Latin currere meaning 'to run', the same root behind the English word current and the verb 'run'. So a decurrent leaf or gill runs down the stem, which is why plant experts use the word for parts that extend downward.
