﻿134 
  KEY 
  AND 
  FLORA 
  

  

  3. 
  T. 
  pratense 
  L. 
  RED 
  CLOVER. 
  Biennial 
  or 
  short-lived 
  peren- 
  

   nial. 
  Stems 
  spreading, 
  branching, 
  downy, 
  1-3 
  ft. 
  long. 
  Leaves 
  long- 
  

   petioled 
  ; 
  stipules 
  large 
  ; 
  leaflets 
  oval 
  to 
  obovate, 
  finely 
  toothed, 
  often 
  

   with 
  a 
  dark 
  triangular 
  spot 
  near 
  the 
  center. 
  Flowers 
  red 
  or 
  purple, 
  

   in 
  globose 
  heads, 
  erect 
  in 
  fruit. 
  Calyx 
  teeth 
  bristle-shaped, 
  hairy. 
  

   Pod 
  1-3-seeded. 
  Introduced 
  from 
  Europe 
  and 
  widely 
  cultivated.* 
  

  

  4. 
  T. 
  repens 
  L. 
  WHITE 
  CLOVER. 
  Perennial. 
  Stems 
  widely 
  branch- 
  

   ing 
  at 
  the 
  base, 
  prostrate 
  and 
  creeping, 
  nearly 
  smooth, 
  6-12 
  in. 
  

   long. 
  Leaves 
  long-petioled 
  ; 
  leaflets 
  oval, 
  obovate, 
  or 
  obcordate, 
  

   minutely 
  toothed. 
  Heads 
  globose, 
  long-peduncled. 
  Flowers 
  white, 
  

   reflexed 
  in 
  fruit. 
  Pod 
  3-4-seeded. 
  Common 
  about 
  houses 
  and 
  in 
  

   pastures.* 
  

  

  5. 
  T. 
  hybridum 
  L. 
  ALSIKE 
  CLOVER. 
  Perennial, 
  considerably 
  

   resembling 
  No. 
  4, 
  but 
  the 
  stems 
  more 
  upright 
  and 
  stouter. 
  Leaflets 
  

   varying 
  from 
  broadly 
  ovate 
  to 
  ovate-lanceolate, 
  mucronate 
  or 
  slightly 
  

   notched, 
  the 
  margins 
  fringed 
  with 
  hairs 
  ; 
  stipules 
  prolonged 
  into 
  

   bristle-like 
  points. 
  Flowers 
  rose 
  color 
  and 
  white, 
  very 
  fragrant. 
  In 
  

   fields 
  and 
  along 
  roadsides. 
  Introduced 
  from 
  Europe. 
  

  

  6. 
  T. 
  carolinianum 
  Michx. 
  CAROLINA 
  CLOVER. 
  Perennial. 
  Stems 
  

   spreading 
  or 
  ascending, 
  much-branched, 
  downy, 
  6-10 
  in. 
  long. 
  Leaves 
  

   short-petioled 
  ; 
  leaflets 
  small, 
  obovate 
  or 
  obcordate, 
  slightly 
  toothed. 
  

   Heads 
  small, 
  globose, 
  on 
  long 
  peduncles. 
  Flowers 
  white, 
  tinged 
  

   with 
  purple, 
  reflexed 
  in 
  fruit. 
  Pod 
  4-seeded. 
  Common 
  in 
  waste 
  

   places 
  S.* 
  

  

  7. 
  T. 
  procumbens 
  L. 
  Low 
  HOP 
  CLOVER. 
  Annual. 
  Stem 
  slender, 
  

   erect 
  or 
  spreading, 
  downy, 
  6-10 
  in. 
  long. 
  Leaves 
  short-petioled 
  ; 
  

   leaflets 
  obovate 
  or 
  obcordate, 
  finely 
  dentate, 
  the 
  middle 
  one 
  distinctly 
  

   stalked 
  ; 
  stipules 
  lance-ovate. 
  Flowers 
  yellow, 
  reflexed 
  in 
  fruit. 
  Pod 
  

   1-seeded. 
  Common 
  on 
  clay 
  soil, 
  in 
  waste 
  places. 
  Naturalized 
  from 
  

   Europe.* 
  

  

  XIII. 
  MELILOTUS 
  Hill. 
  

  

  Annual 
  or 
  biennial 
  herbs. 
  Leaves 
  petioled, 
  of 
  3 
  leaflets. 
  

   Flowers 
  small, 
  white 
  or 
  yellow, 
  in 
  dense 
  axillary 
  and 
  terminal 
  

   racemes. 
  Calyx 
  5-toothed, 
  the 
  teeth 
  nearly 
  equal. 
  Standard 
  

   erect, 
  wings 
  and 
  keel 
  cohering. 
  Stamens 
  10, 
  diadelphous. 
  

   Pod 
  longer 
  than 
  the 
  calyx, 
  1-4-seeded.* 
  

  

  1. 
  M. 
  alba 
  Lam. 
  MELILOTUS. 
  Biennial. 
  Stem 
  erect, 
  branching, 
  

   smooth 
  or 
  the 
  young 
  branches 
  slightly 
  downy. 
  Leaflets 
  oblong 
  or 
  

   oblanceolate, 
  rounded 
  or 
  truncate 
  at 
  the 
  apex, 
  serrate; 
  stipules 
  small. 
  

   Racemes 
  long, 
  slender, 
  erect. 
  Flowers 
  white. 
  Standard 
  longer 
  than 
  

   the 
  wings 
  and 
  keel. 
  Pod 
  ovoid, 
  wrinkled, 
  drooping, 
  mostly 
  1-seeded, 
  

   scarcely 
  opening. 
  Common 
  as 
  a 
  weed 
  and 
  widely 
  cultivated.* 
  

  

  