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 WYETHIA

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

  1. Heads discoid (or rays rarely 1–3)
W. invenusta
  1' Heads radiate, rays 5–21+
 
    2. Basal leaves 0 at flowering (or generally < cauline leaves)
 
      3. Outer phyllaries many, generally < 6 mm wide; involucre hemispheric; plants generally > 50 cm
 
        4. Plant densely soft-hairy; fruit 10–12 mm, glabrous or short-hairy above; pappus 1–3 mm
W. elata
        4' Plant scabrous and sparsely bristly; fruit 5–6 mm; pappus 0 or minute
W. reticulata
      3' Outer phyllaries few, leaf-like, generally 6–17 mm wide; involucre bell-shaped; plants 10–30 cm
 
        5. Head 1; leaves glabrous; pappus 0
W. bolanderi
        5' Heads generally several; young leaves tomentose; pappus a crown of low triangular scales
W. ovata
    2' Basal leaves present at flowering, generally > cauline leaves
 
      6. Outer phyllaries wide, leaf-like, generally >> inner; head generally 1, large
 
        7. Plant shiny green, glabrous to sparsely short-hairy, glandular; phyllaries glabrous or glandular; fruit 10–12 mm
W. glabra
        7' Plant densely tomentose, becoming glabrous; phyllaries persistently tomentose; fruit 12–15 mm
W. helenioides
      6' Outer phyllaries narrow, generally barely > inner; heads 1–few
 
        8. Plants ± tomentose, becoming glabrous; phyllaries generally few
W. mollis
        8' Plants short-hairy; phyllaries generally many
 
          9. Phyllaries ± soft-hairy, ciliate; head generally 1
W. angustifolia
          9' Phyllaries puberulent, not ciliate; heads 1–4
W. longicaulis


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