genus Onychium
— Navneord
– Engelsk
~ small terrestrial ferns of Old World tropics and subtropics: clawed ferns; sometimes placed in family Cryptogrammataceae
genus Ophrys
— Navneord
– Engelsk
~ a hardy genus of terrestrial orchids of Europe and northern Africa and western Asia
genus Opisthocomus
— Navneord
– Engelsk
~ type genus of the Opisthocomidae: hoatzins
gradable opposition
— Navneord
– Engelsk
~ an opposition that is capable of being graded
genus Opuntia
— Navneord
– Engelsk
~ large genus of cactuses native to America: prickly pears
garden orache
— Navneord
– Engelsk
~ Asiatic plant resembling spinach often used as a potherb; naturalized in Europe and North America
genus Orbignya
— Navneord
– Engelsk
~ palms of southern Mexico to northern South America: babassu palm
geostationary orbit
— Navneord
– Engelsk
~ a geosynchronous orbit that is fixed with respect to a position on the Earth
geosynchronous orbit
— Navneord
– Engelsk
~ a circular orbit around the Earth having a period of 24 hours
genus Orchestia
— Navneord
– Engelsk
~ type genus of the family Orchestiidae
greater butterfly orchid
— Navneord
– Engelsk
~ south European orchid with dark green flowers that are larger and less fragrant than Platanthera bifolia; sometimes placed in genus Habenaria
green fringed orchis
— Navneord
– Engelsk
~ fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerated