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Representatives of the Lemnaceae, the duckweed family, are well-adapted for use as bioindicators for testing soil and water for toxic substances.  Their rapid multiplication and the simplicity of their anatomy are important advantages for this use.
Lady's Slipper orchid on black background
A macro image of the flower of the Dancing Lady, a member of the Onicidium Orchid family
Dog Orchid, Codonorchis lessonii,  is a species of orchid. This species is native to Chile and Argentina. Tierra del Fuego National Park, Argentina.
Eastern Spider Orchid (Ophrys mammosa) in natural habitat
Paphiopedilum callosum
orchid in spring
Paphiopedilum orchids flowers bloom in spring lunar new year 2021 adorn the beauty of nature, a rare wild orchid decorated in tropical gardens
Heliamphora pulchella is endemic to some of the table-top mountains in the Guiana highlands. The inside of the pitchers is covered with white hairs and filled with liquid.
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This UK rare Orchid, was photographed at Durleston Country park in Dorset.
Calochortus albus is a species in the genus Calochortus in the family Liliaceae. It is also known by the common names fairy lantern, white fairy lantern, pink fairy lantern, lantern of the fairies, globe lily, white globe lily, white globe-tulip, alabaster tulip, Indian bells, snowy lily-bell, and snow drops. Cuesta Ridge, Los Padres National Forest, California
Early spring flower. Early Spider Orchid, Ophrys sphegodes, flowering European terrestrial wild orchid, nature habitat, detail of bloom, green clear background, Austria
Bladder campion (silene vulgaris)
Brown and yellow flowers of Thelymitra benthamiana, Leopard orchid, endemic to Australia with natural background
Close up of orchid flower Paphiopedilum Makeda.
Paphiopedilum orchids
Orchid flower
Bee Orchid (Ophrys apifera) in natural habitat
Macro photography of plants and plant parts - Transcendia pallida or Purple hearts
Lady's Slipper Brown White
Fresh Yellow orchid flower with orange dots isolated on white background. Studio shot.
Red and yellow striped Cymbidium orchid, commonly known as boat orchids Highland Hill in flower.
Tulip Snake's Head Fritillary (Fritillaria meleagris) plant which grows only in swamp country, blooms at the end of April, Barje near Ljubljana, Slovenia. The background is blurred.
A close-up of the bud of a vibrant flower
Orchid family is a diverse family of flowering plants, with colorful and often fragrant flowers. It is said that they are one of the two largest families of flowering plants with more than twenty thousand species.
Rare wild epiphytic orchid Epidendrum porpax
Christmas Orchid (Calanthe Hybrid) in London, England
microscopic cross section cut
No people. Scenes from the Guild Park and Gardens,  a famous landmark in Toronto, Canada
Free Images: "bestof:Stylidium graminifolium2.jpg Botanical print of Stylidium graminifolium from The Botanical Register Consisting of Coloured Figures of Exotic Plants Cultivated"
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