What is "sphaeranthus"

Sphaeranthus is a genus of Asian, African, and Australian plants in the stinkwort tribe within the daisy family.

several species now in other genera: of Athroisma Pterocaulon

• Sphaeranthus elongatus - Pterocaulon redolens
• Sphaeranthus erectus - Pterocaulon sphacelatum
• Sphaeranthus laciniatus - Athroisma laciniatum
• Sphaeranthus gracilis - Athroisma gracile