Cymbidium cyperifolium var szechuanicum

Cymbidium cyperifolium

Cymbidium cyperifolium, var. szechuanicum                                                                                                                  foto C. Solimbergo
taxonomy     described by (Lindley)  Wallich, Nathaniel
  published in      Numerical list of dried specimen  n. 7373    1828
var.  szechuanicum   described by (Wu  &  Chen)  Chen, Xin-qi  &  Liu, Zhong-jian
  published in Acta Phytotaxonomica Sinica  41 ( 1 ) : 83 - 84    2003
  family Orchidaceae
  subfamily Epidendroideae
  tribe Cymbidieae
  subtribe Cymbidiinae
  genus Cymbidium  Swartz 1799
  chromosomes   2n = 36, 40, 42 
  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 forests in Bhutan, China (Guizhou, Sichuan, Yunnan)
  altitude 600 - 1600 m (1980 - 5300 ft) 
  habitat climate informations from Dadukou (Sichuan (Szechuan), China
    Köppen climate classification : Cfa, humid subtropical climate in all seasons, with very hot summers
    the weather station data (temperatures are calculated for an altitude of 1100 m / 3630 ft) :
    Cymbidium cyperifolium a gr uk
  photoperiod in Dadukou this orchid bloom with a photoperiod, that varies during the year, from 13 h 45 m' to 10 h 15 m'
  life form geophyte 
  brightness   partial shade 
inflorescence   length 7 cm (2.8"), basal 
  nr flowers 3 - 4, fragrants 
  size single flower  5,5 L 5,5 cm  ( 2.2" L 2.2") - inflorescence  12 L 10 cm  (4.8" L 4") 
  duration inflorescence ≈ 60days 
  time from bloom to birth, ≈ 180 days
CITES appendix II

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