A plant that feeds on dead organic material.

The outermost ring of cells around the sapwood of a plant stem or tree trunk. This remarkable sheath of cells is only one cell thick and extends from the roots to the topmost twig. This dividing layer [..]

Juicy; used for plants characterized by the water-conserving and storing capacity of their stems, branches, and leaves.

Having an excess of free hydrogen ions. Acid solutions taste "sour" and turn litmus paper red. See pH and Alkaline.

Arising by chance, or unpredictably, out of the usual place.

A method of vegetative propagation in which a damp rooting medium is placed around a section of plant stem from which the bark has been removed. The clump of rooting medium is wrapped and sealed under [..]

Having an excess of free hydroxyl ions, and so a deficiency of free hydrogen ions. Lacking any sour taste, alkaline or basic soils are often called "sweet." See pH and Acid.

Any arrangement of leaves not opposite or whorled; placed singly at different heights on the stem.

A plant whose life cycle is a single growing season.

The enlarged tip of the stamen in which pollen is developed.