Jepson Flora Project: Jepson Interchange    
 

The Jepson Manual: Higher Plants of California

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

Names are linked to treatments from the Manual


Key to ESCHSCHOLZIA

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

  1. Perennial; receptacle rim 0.5–5 mm; cotyledons generally 2-lobed
2 E. californica
  1' Annual; receptacle rim generally 0–0.3 mm; cotyledons generally entire
 
    2. Receptacle rim 0.5–5 mm; cotyledons sometimes 2-lobed
2 E. californica
    2' Receptacle rim 0–0.3 mm; cotyledons entire
 
      3. Leaves generally basal; leaf segments acute; petals yellow; flower bud glabrous
 
        4. Flower bud generally nodding; seed minutely pitted; petals (10)12–25 mm; Desert
E. glyptosperma
        4' Flower bud erect; seed with prominent discontinuous ridges; petals 7–12 mm; Sierra Nevada Foothills, Great Central Valley
E. lobbii
      3' Leaves basal and cauline; leaf segments acute or obtuse; petals yellow or orange; flower bud glabrous or hairy
 
        5. Flower bud generally hairy, nodding; petiole generally hairy
 
          6. Petals yellow, bases sometimes orange-spotted, 10–15(20) mm; receptacle < 1.5 mm wide
E. hypecoides
          6' Petals orange or deep yellow throughout, 15–40 mm; receptacle > 1.5 mm wide
E. lemmonii subsp. lemmonii
        5' Flower bud glabrous, nodding or erect; petiole generally glabrous
 
          7. Flower bud generally nodding; East of Sierra Nevada, Desert
 
            8. Leaf segments widened to tip, generally obtuse, < 2 mm; leaves grayish or bluish green; petals 3–26 mm; seeds generally oblong to elliptic
E. minutiflora
            8' Leaf segments not widened to tip, acute, > 1.5 mm; leaves bright green or yellow-green; petals 8–30 mm; seeds generally round
E. parishii
          7' Flower bud generally erect; not Desert
 
            9. Receptacle obconic, < 2.5 mm wide
 
              10. Flower bud long-pointed generally > 1/4 bud; plant appearing compact from short lower leaf segments; mainland
E. caespitosa
              10' Flower bud blunt or short-pointed < 1/4 bud; plant appearing open from ± long lower leaf segments; Channel Islands
E. ramosa
            9' Receptacle barrel-shaped, > 2 mm wide
 
              11. Petals 20–40 mm, orange or deep yellow; sw Tehachapi Mountain Area, n Western Transverse Ranges
E. lemmonii subsp. kernensis
              11' Petals 3–15 mm, yellow; Inner North Coast Ranges, San Francisco Bay Area, Inner South Coast Ranges, eastern Outer South Coast Ranges
E. rhombipetala


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