The stalk or stem supporting a leaf, flower, or fruit; a peduncle or petiole.

A herbaceous flowering plant that is not a grass or grass-like.

A heated structure used to induce out-of-season plant growth.

A sunken area or pit used to promote early growth of plants, often heated or covered.

The practice of accelerating plant growth using artificial conditions such as heat and light.

A large area dominated by trees and undergrowth, forming a complex ecosystem.

A botanical rank below species, indicating a minor variation within a species.

A taxonomic rank used to denote a plant variety with minor morphological differences.

Arched or vaulted in shape; forming an arch-like structure.

An arch or vault-like structure, often in floral or fruit anatomy.