discoid flower造句怎么写

"any of various North american plants of the genus Liatris in the composite family, having small, discoid flower heads grouped in a dense raceme or panicle."

small woolly perennial herbs having small whitish discoid flowers surrounded by a ring of club-shaped bristles.

A European plant(Aster linosyris)having narrow, sessile leaves and dense corymbs of small, bright yellow, discoid flower heads.

coarse herbs with whitish discoid flower heads and silky pappus.

Any of various aromatic plants of the genus Artemisia in the composite family, having green or grayish foliage and usually numerous small discoid flower heads and including the mugwort, sagebrush, tarragon, and wormweed.