Haraella retrocalla

Haraella retrocalla

Haraella retrocalla                                                                                                                                                           photo C. Solimbergo
taxonomy described by (Hayata)  Kudo,Yushun
published in  Journal of the Society of Tropical Agriculture  2 : 27    1930
family Orchidaceae
subfamily Epidendroideae
tribe Vandeae
subtribe Aeridinae
genus Haraella  Kudo1930

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 of Taiwan
altitude 900 - 2000 m  (3000 - 6600 ft)

climate informations from Alishan (Taiwan)

    Köppen climate classification : Cfb, humid subtropical climate in all seasons, with hot summers
    the weather station data (temperatures are calculated for an altitude of 1500 m / 4850 ft) :
    Haraella retrocalla a gr uk
  photoperiod on Alishan this orchid bloom with a photoperiod, that varies during the year, from 13 h 33 m' to 10 h 27 m'
life form epiphyte
brightness     partial shade
inflorescence    length 2,5 cm (1"), axillary 
nr flowers 2 - 3, fragrants 
size single flower  2,5 L 2,5 cm  (1" L 1") 
duration single flower ≈ 8 days - inflorence ≈ 20 days 
time to bloom from birth ≈ 60 days
CITES appendix II

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