﻿174 
  KEY 
  AND 
  FLORA 
  

  

  1. 
  Z. 
  aurea 
  Koch. 
  MKADOW 
  PARSNIP, 
  GOLDEN 
  ALEXANDERS. 
  

  

  Smooth, 
  stem 
  erect, 
  1-2 
  ft. 
  high. 
  Basal 
  leaves 
  mostly 
  heart-shaped 
  

   and 
  serrate 
  ; 
  stem 
  leaves 
  usually 
  once 
  compound 
  in 
  threes. 
  Flowers 
  

   deep 
  yellow. 
  Fruit 
  between 
  globose 
  and 
  ovoid, 
  about 
  in. 
  long 
  ; 
  all 
  

   the 
  ribs 
  generally 
  winged. 
  Woods 
  and 
  thickets. 
  

  

  VH. 
  THASPIUM 
  Nutt. 
  

  

  Perennial 
  herbs. 
  Stem 
  erect. 
  Leaves 
  1-2, 
  compound 
  in 
  

   threes. 
  Umbels 
  compound; 
  involucre 
  and 
  iuvolucels 
  usually 
  

   wanting. 
  Flowers 
  yellow 
  or 
  purple. 
  Calyx 
  teeth 
  small, 
  acute. 
  

   Fruit 
  ovoid 
  or 
  oblong, 
  somewhat 
  laterally 
  compressed 
  ; 
  carpels 
  

   smooth, 
  strongly 
  ribbed 
  ; 
  oil 
  tubes 
  between 
  the 
  ribs.* 
  

  

  1. 
  T. 
  barbinode 
  Nutt. 
  HAIRY 
  MEADOW 
  PARSNIP. 
  Stem 
  erect, 
  

   branching 
  above, 
  downy 
  at 
  the 
  nodes, 
  2-7 
  ft. 
  high. 
  Leaves 
  petioled, 
  

   slightly 
  downy 
  ; 
  leaflets 
  mostly 
  thin, 
  ovate, 
  toothed, 
  incised 
  or 
  lobed 
  

   toward 
  the 
  apex, 
  entire 
  toward 
  the 
  base. 
  Umbels 
  long-peduncled, 
  

   few-rayed. 
  Fruit 
  oblong 
  ; 
  lateral 
  and 
  central 
  ribs 
  strongly 
  winged. 
  

   Along 
  streams.* 
  

  

  Vni. 
  LOMATIUM 
  Raf. 
  

  

  Perennial 
  herbs, 
  appearing 
  stemless. 
  Roots 
  thickened. 
  Leaves 
  

   dissected. 
  Flowers 
  white 
  or 
  yellow, 
  in 
  compound 
  umbels, 
  with 
  

   no 
  general 
  involucre. 
  Calyx 
  teeth 
  usually 
  wanting. 
  Fruit 
  

   orbicular, 
  oval 
  or 
  oblong, 
  much 
  flattened 
  dorsally, 
  the 
  lateral 
  

   ribs 
  extended 
  into 
  broad 
  wings 
  ; 
  oil 
  tubes 
  1-4 
  on 
  the 
  intervals 
  

   between 
  wings 
  and 
  2-6 
  on 
  the 
  junctions 
  of 
  the 
  carpels. 
  

  

  1. 
  L. 
  orientate 
  Coult. 
  & 
  Rose. 
  WHITE-FLOWERED 
  PARSLEY. 
  

   Downy, 
  with 
  peduncles 
  3-8 
  in. 
  high. 
  Leaves 
  twice 
  pinnate, 
  the 
  

   segments 
  oblong 
  or 
  ovate, 
  generally 
  cut 
  into 
  rather 
  obtuse 
  linear 
  or 
  

   nearly 
  linear 
  lobes. 
  Bracts 
  of 
  the 
  involucels 
  lanceolate, 
  with 
  thin 
  

   membranous 
  margins. 
  Flowers 
  white 
  or 
  pinkish. 
  Fruit 
  oval 
  or 
  

   round, 
  notched 
  at 
  the 
  base, 
  smooth 
  ; 
  oil 
  tubes 
  solitary 
  in 
  the 
  inter- 
  

   vals 
  between 
  ribs. 
  Dry 
  soil 
  W. 
  

  

  2. 
  L. 
  daucifolium 
  Coult. 
  & 
  Rose. 
  CARROT-LEAVED 
  PARSLEY. 
  

   Leaves 
  finely 
  dissected 
  into 
  short 
  linear 
  or 
  thread-like 
  segments. 
  

   Petals 
  yellow. 
  Fruit 
  oval, 
  with 
  prominent 
  dorsal 
  ribs. 
  Prairies 
  W. 
  

  

  IX. 
  PASTINACA 
  L. 
  

  

  A 
  tall, 
  smooth 
  biennial, 
  with 
  a 
  stout, 
  grooved 
  stem. 
  Leaves 
  

   pinnate. 
  Flowers 
  yellow, 
  in 
  large 
  umbels, 
  with 
  hardly 
  any 
  

  

  