Black elder (Sambucus nigra) in a single form presents as an individual woody perennial with a clearly defined base and a branching structure that spreads outward from a central point. The plant develops multiple stems, but they originate from one primary root system, giving the shrub a distinct, self-contained presence. Leaves are pinnate and arranged along gently arching branches, creating an open yet substantial structure.

Also called European elder, Sambucus nigra is native to temperate regions of Europe and western Asia and commonly grows in hedgerows and open woodland edges. The species is biologically notable for its fast growth and capacity to recover after disturbance. In single form, the plant emphasizes its architectural branching and seasonal productivity, demonstrating how an individual elder can function independently while still supporting wildlife and contributing to ecological complexity.