rhizome(redirected from rootstalk)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
The creeping underground stem of some plants (for example, iris, calamus, and sanguinaria).
[G. rhizōma, mass of roots, fr. rhiza, root, + -oma, mass]
an underground plant stem, growing more or less horizontally, that usually has roots on its underside and bears buds.
rhizomea horizontal underground stem (with leaves and buds) that serves as a storage organ and a means of VEGETATIVE PROPAGATION. Rhizomes are found in flowering plants such as Iris.
n root system of some perennial plants; consists of roots that grow horizontally; may also bear scales and nodes.
an underground plant stem that develops roots and leaves at nodes along its length, e.g. in bracken, Sorghum halepense.