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Cypripedium candidum, known as the small white lady's slipper or white lady's slipper, is a rare orchid of the genus Cypripedium. It is native to eastern North America across the northern United States and southern Canada .
Dendrobium crumenatum, commonly called pigeon orchid, [2] or 木石斛 (mu shi hu) [3] is an epiphytic orchid in the family Orchidaceae and is native to Asia, Southeast Asia, New Guinea and Christmas Island. It has two rows of leaves along its pseudobulb and relatively large but short-lived, strongly scented white flowers. It usually grows in ...
Many orchids, including Angraecum sesquipedale, are pollinated by nocturnal butterflies and, as a result, tend to have light-colored or nearly white flowers that emit fragrance in the evening or night. Other examples of such orchids include Bonatea speciosa, Habenaria epipactidea, species in the genus Satyrium, Disa cooperi and D. ophrydea. [12]
Platanthera leucophaea, commonly known as the prairie white fringed orchid [6] or eastern prairie fringed orchid, is a rare species of orchid native to North America. It is a federally threatened species, [ 7 ] protected since October 30, 1989 under the Endangered Species Act of 1973 . [ 8 ]
Platanthera dilatata, known as tall white bog orchid, bog candle, or boreal bog orchid is a species of orchid, a flowering plant in the family Orchidaceae, native to North America. [ 2 ] [ 3 ] [ 4 ] It was first formally described in 1813 by Frederick Traugott Pursh as Orchis dilatata .
The number of people with smell dysfunction are "vastly underestimated, said Valentina Parma, assistant director at the Monell Chemical Senses Center in Philadelphia. She called the new study a ...
The secondary stems are flat, elliptic-acuminate, up to 30 cm × 12 cm (12 in × 5 in). The stem margins are shallowly through deeply crenate and undulate. Stems appear to be waxy therefore cutin may be present. Cutin reduces water loss from stems. A gel-like substance oozes out of stem cuts. Stems contain much water-filled tissue.
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