pollinated by a moth, darwin's comet orchid

angraecum associated beautiful beauty best bethlehem bloom blooming blossom botanical christmas close closeup comet conservation darwin darwins decoration elegant epiphytic evolution exotic flora floral flower flowers garden georgeous gorgeous green interesting isolated king leaves many moth natural nature orchid ornamental petal plant pollinated rare real rhizome scientific sesquipedale spring star stem study theory tropical unusual vigulena waxy white with