The strengthened vein down the middle of a flower petal or simple leaf or leaflet.
The continuation of the petiole of a pinnately compound leaf around which the leaflets attach.
The stalk of a leaf, attaching the blade to the stem.
A narrow or constricted segment of the body of an insect; especially, the metasomal segment of certain Hymenoptera, such as wasps.
The stalk at the base of the nest of the paper wasp.