decurrent
/dɪˈkʌrənt/adjective
1- Botany (of a fungus gill, leaf, etc.) extending down the stem below the point of attachment【植】（菌褶、叶等）下延的; 下行的, 向下的。
1.1
- (of a shrub or the crown of a tree) having several roughly equal branches（灌木, 树冠）等枝的。
词源
mid 18th cent.: from Latin decurrent- 'running down'， from the verb decurrere.