Cypripedium reginae

 

Cypripedium reginae
Cypripedium reginae                                                                                                                  photo C. Solimbergo
Cypripedium reginae var. albolabium
Cypripedium reginae, forma albolabium                                                                                                                        photo C. Solimbergo
     
taxonomy      desribed by    Walter, Thomas
  published in Flora Caroliniana, secundum . . . 222. 1788
     
forma albolabium     desribed by     Rolfe, Robert Allen
  published in Orchid Review 19: 208. 1911
     
taxonomy family Orchidaceae
  subfamily Cypripedioideae
  tribe --
  subtribe --
  genus Cypripedium  Lindley 1753
  section Cypripedium
     
  chromosones    2n = 20 
  metabolism CAM pathway, stomata of the leaves are open at night.
    (K.Silvera, L.S. Santiago, J.C. Cushman, K. Winter - International Symposium on Plant Biology, August 2013)
    it is useful give the soluble mineal nutriens, on the roots.
     
native of origins wetlands, tamarak and black spruce woods, in Canada (Manitoba, Ontario, Quebec, Saskatchewan),
    Stati Uniti (Alabama, Georgia, Illinois, Iowa, Maryland, Michigan, Minnesota, Missouri, Carter,
    Douglas, Howell, Iron, Ozack, Putnam, Shannon, North Carolina, North Dakota, Ohio, Tennessee,
    West Virginia, Indiana, Steuben)
  altitude 105 – 232 m (346 – 700 ft)
  habitat climate informations from Berens River (Manitoba, Canada)
    Köppen climate classification : Dfb, cold weather, humid, with warm summer
    the weather station data (temperatures are calculated for an altitude of 160 m / 530 ft) :
    Cypripedium reginae a gr uk
  photoperiod in Berens River this orchid bloom with a photoperiod, that varies during the year, from 15 h 29 m' to 8 h 31 m'
  life form geophyte
  brightness partial shade
     
inflorescence    length 11 cm (4.4")
  nr flowers 1
  size single flower 6 L 8 cm (2.4" L 3.2")
  duration single flower ≈ 20 days
  time to bloom from birth, ≈ 20 days
     
CITES appendix II

       

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