whorled milkweed

noun

: either of two North American milkweeds with narrow leaves and greenish white flowers:

a

: an herb (Asclepias verticillata) mostly of the eastern states

b

: an herb (A. galioides) of the Great Plains region

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now