Nemacaulis

Nemacaulis is a monotypic plant genus in the buckwheat family containing the single species Nemacaulis denudata, which is known by the common names woollyheads and cottonheads. This plant is a somewhat undistinguished delicate annual herb with thin, spindly, naked stems and woolly white flowerheads. It can be found in sandy habitats in California, Arizona, and northern Mexico.

Nemacaulis
Nemacaulis flower
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Polygonaceae
Subfamily:	Eriogonoideae
Genus:	Nemacaulis Nutt.
Species:	N. denudata
Binomial name
Nemacaulis denudata Nutt.
Synonyms
Eriogonum nemacaulis