Noun
Several plant species in family Asteraceae:
Rush skeletonweed (Chondrilla juncea), native to parts of Europe, Asia, and North Africa, but considered an invasive plant.
Wheeler's skeletonweed (Chaetadelpha wheeleri), of the western US.
Thorny skeletonweed (Pleiacanthus spinosus), of the western US.
Beaked skeletonweed (Shinnersoseris rostrata) of the Great Plains of North American
Flatcrown buckwheat (Eriogonum deflexum), of the buckwheat family (Polygonaceae), found in the western US and Mexico.
Source: en.wiktionary.org