﻿212 
  KEY 
  AND 
  FLORA 
  

  

  Corolla 
  with 
  dilated 
  throat, 
  upper 
  lip 
  arched, 
  middle 
  lobe 
  of 
  

   the 
  lower 
  lip 
  notched, 
  the 
  lateral 
  lobes 
  small, 
  close 
  to 
  the 
  

   throat 
  of 
  the 
  corolla. 
  Stamens 
  4, 
  rising 
  beneath 
  the 
  upper 
  lip. 
  

  

  1. 
  L. 
  amplexicaule 
  L. 
  HENBIT, 
  DEAD 
  NETTLE. 
  An 
  annual 
  or 
  

   biennial 
  weed. 
  Leaves 
  roundish, 
  deeply 
  scalloped, 
  the 
  lower 
  ones 
  

   petioled, 
  the 
  upper 
  sessile 
  and 
  clasping. 
  Corolla 
  sometimes 
  in. 
  

   long, 
  downy, 
  rose-colored 
  or 
  purplish. 
  Not 
  uncommon 
  about 
  gardens 
  

   and 
  dooryards. 
  Naturalized 
  from 
  Europe. 
  

  

  2. 
  L. 
  purpureum 
  L. 
  Stem 
  6-18 
  in. 
  high, 
  silky 
  -hairy 
  or 
  nearly 
  

   smooth, 
  reclining 
  below, 
  branched 
  from 
  the 
  base. 
  Leaves 
  long-peti- 
  

   oled, 
  obtuse, 
  heart-shaped, 
  scalloped. 
  Whorls 
  of 
  flowers 
  mostly 
  

   terminal, 
  crowded. 
  Corolla 
  | 
  f 
  m 
  - 
  lo 
  u 
  g> 
  purple 
  (rarely 
  white). 
  Nat- 
  

   uralized 
  from 
  Europe. 
  

  

  VI. 
  LEONURUS 
  L. 
  

  

  Erect 
  herbs. 
  Leaves 
  lobed. 
  Whorls 
  of 
  flowers 
  axillary, 
  

   densely 
  flowered, 
  scattered 
  ; 
  bractlets 
  awl-shaped 
  ; 
  flowers 
  

   small, 
  pink 
  or 
  white. 
  Calyx 
  5-nerved, 
  top-shaped, 
  with 
  5 
  

   rather 
  spiny, 
  spreading 
  teeth. 
  Corolla 
  Avith 
  upper 
  lip 
  erect 
  

   and 
  entire, 
  lower 
  3-cleft. 
  Stamens 
  4 
  ; 
  anthers 
  joined 
  in 
  pairs. 
  

   Nutlets 
  with 
  3 
  projecting 
  angles, 
  their 
  sides 
  channeled. 
  

  

  1. 
  L. 
  cardiaca 
  L. 
  MOTHERWORT. 
  Stem 
  2-4 
  ft. 
  high, 
  prominently 
  

   angled, 
  stiff, 
  stout, 
  upright, 
  very 
  leafy. 
  Leaves 
  palmately 
  lobed 
  or 
  

   cleft; 
  basal 
  ones 
  long-petiolcd 
  ; 
  lower 
  stem 
  leaves 
  many-cleft, 
  the 
  

   upper 
  ones 
  3-cleft, 
  prominently 
  nerved, 
  the 
  divisions 
  acute. 
  Corolla 
  

   \ 
  in. 
  long, 
  pale 
  rose 
  color, 
  the 
  upper 
  lip 
  and 
  outside 
  of 
  the 
  tube 
  

   densely 
  soft-bearded. 
  Common 
  about 
  dooryards 
  and 
  fence 
  rows. 
  

   Naturalized 
  from 
  Europe. 
  

  

  VII. 
  STACHYS 
  L. 
  

  

  Herbs, 
  rarely 
  shrubs. 
  Leaves 
  scalloped 
  or 
  serrate. 
  Whorls 
  

   of 
  flowers 
  2 
  or 
  more 
  flowered, 
  usually 
  in 
  terminal 
  racemes. 
  

   Calyx 
  nearly 
  bell-shaped, 
  5-toothed. 
  Corolla 
  tube 
  cylindrical, 
  

   usually 
  with 
  a 
  ring 
  of 
  hairs 
  inside, 
  not 
  dilated 
  at 
  the 
  throat 
  ; 
  

   upper 
  lip 
  erect 
  or 
  spreading; 
  lower 
  spreading, 
  3-lobed, 
  the 
  

   middle 
  lobe 
  largest. 
  Stamens 
  4, 
  the 
  2 
  lower 
  longest. 
  

  

  1. 
  S. 
  palustris 
  L. 
  Perennial; 
  stem 
  erect, 
  4-angled, 
  2-3 
  ft. 
  high, 
  

   hairy, 
  especially 
  on 
  the 
  angles, 
  with 
  projecting 
  or 
  reflexed 
  hairs, 
  

   leafy. 
  Stem 
  leaves 
  short-petioled 
  or 
  sessile, 
  ovate-lanceolate 
  or 
  ob- 
  

   long-lanceolate, 
  scalloped-serrate, 
  coarsely 
  or 
  finely 
  downy, 
  roundish 
  

  

  