Cypripedium reginae | photo C. Solimbergo |
Cypripedium reginae, forma albolabium | photo C. Solimbergo |
taxonomy | desribed by | Walter, Thomas |
published in | Flora Caroliniana, secundum . . . 222. 1788 | |
forma albolabium | desribed by | Rolfe, Robert Allen |
published in | Orchid Review 19: 208. 1911 | |
taxonomy | family | Orchidaceae |
subfamily | Cypripedioideae | |
tribe | -- | |
subtribe | -- | |
genus | Cypripedium Lindley 1753 | |
section | Cypripedium | |
chromosones | 2n = 20 | |
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 | wetlands, tamarak and black spruce woods, in Canada (Manitoba, Ontario, Quebec, Saskatchewan), |
Stati Uniti (Alabama, Georgia, Illinois, Iowa, Maryland, Michigan, Minnesota, Missouri, Carter, | ||
Douglas, Howell, Iron, Ozack, Putnam, Shannon, North Carolina, North Dakota, Ohio, Tennessee, | ||
West Virginia, Indiana, Steuben) | ||
altitude | 105 – 232 m (346 – 700 ft) | |
habitat | climate informations from Berens River (Manitoba, Canada) |
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Köppen climate classification : Dfb, cold weather, humid, with warm summer | ||
the weather station data (temperatures are calculated for an altitude of 160 m / 530 ft) : | ||
photoperiod | in Berens River this orchid bloom with a photoperiod, that varies during the year, from 15 h 29 m' to 8 h 31 m' | |
life form | geophyte | |
brightness | partial shade | |
inflorescence | length | 11 cm (4.4") |
nr flowers | 1 | |
size | single flower 6 L 8 cm (2.4" L 3.2") | |
duration | single flower ≈ 20 days | |
time | to bloom from birth, ≈ 20 days | |
CITES | appendix | II |