Zelenkoa onusta

 Oncidium onustum

Zelenkoa onusta                                                                                                                                                                photo C. Solimbergo
(Oncidium onusta)  
taxonomy described by (Lindley) Chase, Mark W.  &  Williams, Norris H.
  published in        Lindeyana  16 ( 2 ) : 139    2001
  family Orchidaceae
  subfamily Epidendroideae
  tribe Cymbidieae
  subtribe Oncidiinae
  genus Zelenkoa  Chase & Wiliams 2001
  chromosomes 2n = 56 
  metabolsm 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 on cactus and shrubs, in Panama (Henera, Parìta), Colombia, Ecuador (Manabì, El Oro, Guayas, Loja), 
    Peru (Piura, Sullana)
  altitude 30 - 1200 m  (99 - 3960 ft)
  habitat climate informations from Guayaquil (Guayas, Ecuador)
    Köppen climate classification : Aw, tropical savanna climate (with a dry season and a rainy season)
    the weather station data (temperatures are calculated for an altitude of 600 m / 1980 ft) :
    Zelenkoa onusta b gr uk
  photoperiod  in Guayaquil this orchid bloom with a photoperiod, that varies during the year, from 12 h 08 m' to 11 h 52 m'
  life form epiphyte
  brightness    partial shade to low
inflorescence     length 60 - 75 cm (24" - 30"), basal  
  nr flowers 18 - 24
  size single flower  2.5 L 2  (1" L 0.8") - inflorescence  L  cm
  duration inflorescence  ≈ 60 days
  time to bloom from birth, ≈ 90 - 120 days 
CITES appendix II


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