Dendrobium violaceum subsp cyperifolium photo C. Solimbergo |
taxonomy | described by | Kraenzlin, Friedrich Wilhelm Ludwig |
published in | Das Pflanzenreich 108 1910 | |
subsp cyperifolium | described by | (Schlechter) Reeve, Thomas M. & Woods, Patrich James Blythe |
published in | Notes from the Royal Botanic Garden, Edimbirgh 46 : 236 1989 | |
family | Orchidaceae | |
subfamily | Epidendroideae | |
tribe | Malaxideae | |
subtribe | Dendrobiinae | |
genus | Dendrobium Swartz 1799 | |
chromosomes | 2n = 38 | |
metabolism |
CAM pathway, stomata of the leaves are open at night. |
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(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 | orizontal branches of primary forests, Papua (Sepik, Enga, Finisterre Range, West Nassau Mountains, |
Nepesip, Nondugl, Erl River, Korombi, Mt. Aigeget), Indonesia (Irian Jaya, Milne Bay, Mt. Jaya, |
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Mt. Castensz, Cyclop Mountains, Wissel Lake) | ||
altitude | 750 - 2300 m (2475 - 7590 ft) | |
habitat |
climate informations from Laiagam (Enga, Papua) |
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Köppen climate classification : Af, humid tropical climate of the rainforest | ||
(no winter season, more abundant rainfall) | ||
the weather station data (temperatures are calculated for an altitude of 1500 m / 4950 ft) : | ||
photoperiod | in Laiagam this orchid bloom with a photoperiod, that varies during the year, from 12 h 21 m' to 11 h 39 m' | |
life form | epiphyte or litophyte | |
brightness | partial shade | |
inflorescence | length | 1 cm (0.4"), from the upper nodes |
nr flowers |
1 - 2 | |
size | single flower 3.5 L 1.5 cm (1.4" L 0.6") | |
durata | inflorescence ≈ 60 days | |
time | to bloom from birth, ≈ 50 days | |
CITES | appendix | II |