The Jepson Manual: Higher Plants of California

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Names are linked to treatments from the Manual


Key to ARACEAE

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

  1. Plant aquatic, free floating; inflorescence ± sessile, inconspicuous among basal leaves
PISTIA (no key)
  1' Plant terrestrial or near edge of water; peduncle short to long
 
    2. Leaves 2-ranked; blade folded along midrib, linear, sessile; inflorescence bract leaf-like, narrow, sessile
ACORUS (no key)
    2' Leaves ± whorled; blade ± flat, wider, petioled; inflorescence bract wide, ± stalked
 
      3. Inflorescence bract lemon-yellow; petiole < leaf blade
LYSICHITON (no key)
      3' Inflorescence bract green or white (or light yellow in Arum); petiole ± = or > blade
 
        4. Peduncle generally = or > leaf; inflorescence bract white
ZANTEDESCHIA (no key)
        4' Peduncle generally < leaf; inflorescence bract green or greenish white to yellow
 
          5. Inflorescence sterile in ± upper half, flowers only in lower half; inflorescence bract greenish white to yellow
ARUM (no key)
          5' Inflorescence fertile throughout; inflorescence bract green
PELTANDRA (no key)


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