About Arnica acaulis (Walter) Britton, Sterns & Poggenb.
Arnica acaulis (Walter) Britton, Sterns & Poggenb. is a North American plant species belonging to the sunflower family. Its common name is common leopardbane. This species is native to the southeastern and east-central regions of the United States, ranging north from Alabama and Florida to New Jersey and Pennsylvania.