Herbaceous

Thu, 02 Apr 2026 00:00:00 +0000

Herbaceous describes a plant or plant part that does not develop persistent woody tissue (secondary xylem) above ground. Herbaceous stems are green, photosynthetic, flexible, and typically short-lived — they die back at the end of the growing season in temperate climates, or persist in mild climates without becoming woody.

The botanical sense of “herb” (a herbaceous plant) differs from the culinary and medicinal sense (a plant used for flavoring or medicine). A plant can be herbaceous without being a culinary herb, and many medicinal “herbs” are actually woody shrubs or trees.

Rhizome

Thu, 02 Apr 2026 00:00:00 +0000

A rhizome is a modified stem that grows horizontally below the soil surface, producing adventitious roots from its lower surface and aerial shoots from its nodes. Despite growing underground, a rhizome is a stem, not a root — it has nodes, internodes, scale leaves, and axillary buds, features that true roots lack. The distinction matters: rhizomes store starch and nutrients in stem parenchyma tissue, generate new shoots from meristematic buds at each node, and can regenerate a complete plant from a fragment containing as little as a single node.

PlantMorphology on emsenn.net

Herbaceous

Rhizome