"flower stalk" is correct and usable in written English.
It is the part of the plant stem that supports the flower. For example, "The little girl plucked a daisy from its flower stalk."
Flowers: The fast-growing flower stalk looks like a giant asparagus, with greenish yellow blooms.
Ideally, the flower stalk should appear first.
The fat flower stalk should start to push up easily.
Unlike hummingbirds, sunbirds rarely hover while feeding but instead perch on the flower stalk (see photo).
So pale and thin inside these coverings, like a flower stalk.
Both the radially thickened hypocotyl and the inflorescence stem (flower stalk) have been studied.
Unlike hummingbirds, sunbirds rarely hover while feeding but instead perch on the flower stalk.
Billbergia species are tubular in shape; their showy flower stalk, with blue flowers, is often pendant.
After the flower falls, the flower stalk swells into a red, sweet-tasting, edible mass.
Inflorescence: raceme-like, tip generally with leaf-like bracts; flower stalk +- = calyx; bractlets thread-like.
Once the flower stalk starts to emerge, the flower buds may open without showing any signs of leaves.
