decurrent

From Latin decurrens — de (“down”) + curro (“to run”).

形容词 Adjective

(botany) Of plant parts: extending downward, most often in the case of leaf blades that partly wrap or have wings around the stem or petiole and extend down along the stem.
(mycology) Of lamellae (the gills of a mushroom): broadly attached and extending down the stipe of the mushroom.
(obsolete) Running or extending downwards.

派生词（2）