The Jepson Manual: Higher Plants of California

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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

Names are linked to treatments from the Manual


Key to RUDBECKIA

N.B.: couplets are linked, e.g., 1. is linked to 1'.

  1. Heads discoid
R. occidentalis var. occidentalis
  1' Heads radiate
 
    2. Pappus 0; disk flowers dark purple; disk spheric or ovoid
R. hirta var. pulcherrima
    2' Pappus a crown of fused scales; disk flowers greenish yellow; disk ± columnar
R. californica
      3. Leaves green; lower leaf surface hairy
var. californica
      3' Leaves glaucous; lower leaf surface glabrous
 
        4. Leaves entire or few-toothed; disk generally > 3 cm
var. glauca
        4' Leaves coarsely toothed; disk 1.5–3 cm
var. intermedia


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