Sphaeranthus
As per efi thread : Given below are the relevant key characters from Flora of India: a. Stems not winged —> Sphaeranthus amaranthoides b. Stems winged: b-i) wings entire; flower-heads <1 cm across —> S. africanus b-ii) wings toothed; heads up to 2.5 cm across; leaves single-dentate —> S. senegalensis…