Alberta Invasive Plant Identification Guide

nutlet Hard, small, one-seeded fruit, usually referring to fruits of the Borag-
inaceae members.
opposite Term applied to leaves or buds occurring in pairs at a node.
palmate Leaflets, lobes, or veins which arise from the same point at the tip
of the stalk.
perennial Plants which live two or more years.
pinnate Leaflets or lobes developing from several different points on the
main leaf axis.
plume A hair-like or featherlike structure, often on a seed.
rhizomatous Having rhizomes.
rhizome A horizontal stem growing beneath the ground which can develop
roots or sprouts at the joints.
Glossary
rosette A cluster of leaves radiating out from the base of the plant.
sepal One of the outermost flower structures, usually enclosing the other
flower parts in the bud.
spur Any long, narrow (sometimes tubular) extension of a petal.
stolon A horizontal stem growing above the ground, which can develop roots
or sprouts at the joints.
taproot The primary descending root along the vertical axis of the plant
which is larger than the branching roots.
terminal Borne at or belonging to the extremity or summit.
umbelliform inflorescence A many flowered inflorescence in which the
flowers' stems arise from a common point, ascend in all directions, and form
a relatively level topped flower cluster.
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