Ratibida

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  R. pinnata

  1a. Disk ellipsoid to spherical, 10–25 ×10–18 mm; plants from fibrous roots; pappus usually absent (rarely consisting of 1 or 2 tooth-like scales); style branches stigmatic in the apical ½
• Choose this species
  R. columnifera

  1b. Disk cylindric, 10–50 ×7–12 mm; plants from a taproot; pappus usually consisting of 
1 or 2 tooth-like scales (rarely absent); style branches stigmatic in the apical ¼ to ⅓

 Show photos of:   Each photo represents one species in this genus.