... branches, secondary branches 90-160 months; leaves opposite, oval-shaped, paper, leaves surface roughness, 400-700 annual plant with leaves up ... 1200 pieces; room-like inflorescence and more sparsely arranged, tube-shaped involucre, flower police flat, corolla white; fruit of long ... spindle-shaped achenes, the top of the umbrella-shaped crown of Health hair; grain weight 0 ...