Oncidium bifolium

Oncidium bifolium 

Oncidium bifolium                                                                                                                                                          photo C. Solimbergo
(Coppensia bifolia  
taxonomy described by Sims, John
  published in        Botanical Magazine  36 : t , 1491    1812
  family Orchidaceae
  subfamily Epidendroideae
  tribe Cymbidieae
  subtribe Oncidiinae
  genus Oncidium  Swartz 1800
  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 Bolivia (Cordillera, Santa Cruz, Tarija, Avce, Avilez, Chuquisaca, Cochabamba, Vallegrande, Inquisivi),
    Brazil (Paranà, Santa Catarina, Rio Grande do Sul), Uruguay (Soriano), Paraguay (Caaguazù), Argentina (Chaco,
    Catamarca, Corrientes, Jujuy, Tucumàm, Iguazù)
  altitude 50 - 2960 m  (165 - 9770 ft)

climate informations from Tarija (Tarija, Bolivia)


Köppen climate classification : Cwb, humid subtropical climate, with hot summer


the weather station data (temperatures are calculated for an altitude of 1500 m / 4950 ft) :

    Oncidium bifolium b gr uk
  photoperiod in Tarija this orchid blooms with a photoperiod, which varies during the year, from 13 h 25 m' to 10 h 35 m'
  life form epiphyte
  brightness    partial shade
inflorescence     length 150 - 180 cm  (60" - 72"), basal  
  nr flowers 64 - 80
  size single flower  4 L 3.5 cm  (1.6" L 1.4") - inflorescence  100 L 9 cm  (40" L 3.6")
  duration inflorescence ≈ 90 days
  time to bloom from birth, ≈ 70 - 90 days
CITES appendix II

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