Dictionary

All Word
orchard apple tree Noun native Eurasian tree widely cultivated in many varieties for its firm rounded edible fruits
orange milkwort Noun bog plant of pine barrens of southeastern United States having spikes of irregular yellow-orange flowers
orange balsam Noun North American annual plant with usually yellow or orange flowers
orange tree Noun any citrus tree bearing oranges
orangewood Noun fine-grained wood of an orange tree
oxalis Noun any plant or flower of the genus Oxalis
oca Noun South American wood sorrel cultivated for its edible tubers
oka Noun South American wood sorrel cultivated for its edible tubers
oka Noun a Turkish liquid unit equal to 1.3 pints
oka Noun a Turkish unit of weight equal to about 2.75 pounds
oval kumquat Noun shrub bearing oval-fruited kumquats
osier Noun any of various willows having pliable twigs used in basketry and furniture
osier Noun flexible twig of a willow tree
oil nut Noun oily drupaceous fruit of rabbitwood
oriental bittersweet Noun ornamental Asiatic vine with showy orange-yellow fruit with a scarlet aril
orpine Noun perennial northern temperate plant with toothed leaves and heads of small purplish-white flowers
orpin Noun perennial northern temperate plant with toothed leaves and heads of small purplish-white flowers
opossum wood Noun medium-sized tree of West Virginia to Florida and Texas
oriental plane Noun large tree of southeastern Europe to Asia Minor
oswego tea Noun perennial aromatic herb of eastern North America having variously colored tubular flowers in dense showy heads
origanum Noun any of various fragrant aromatic herbs of the genus Origanum used as seasonings
obedient plant Noun North American plant having a spike of two-lipped pink or white flowers
old-field toadflax Noun North American plant having racemes of blue-violet flowers
orange mushroom pimple Noun a variety of mushroom pimple
osmund Noun any fern of the genus Osmunda: large ferns with creeping rhizomes
ostiole Noun a small pore especially one in the reproductive bodies of certain algae and fungi through which spores pass
onion mildew Noun fungus causing a downy mildew on onions
orchil Noun any of various lecanoras that yield the dye archil
orchil Noun a purplish dye obtained from orchil lichens
onion stem Noun a white agaric that tends to cluster and has a club-shaped base
oyster mushroom Noun edible agaric with a soft greyish cap growing in shelving masses on dead wood
oyster fungus Noun edible agaric with a soft greyish cap growing in shelving masses on dead wood
oyster agaric Noun edible agaric with a soft greyish cap growing in shelving masses on dead wood
olive-tree agaric Noun red luminescent mushroom of Europe
orange peel fungus Noun a discomycete with bright orange cup-shaped or saucer-shaped fruiting bodies and pale orange exteriors
old-man-of-the-woods Noun edible mild-tasting mushroom found in coniferous woodlands of eastern North America
onion smut Noun smut fungus causing blackish blisters on scales and leaves of onions
oak apple Noun oak gall caused by larvae of a cynipid wasp
obtuse leaf Noun a simple leaf having a rounded or blunt tip
oblanceolate leaf Noun a leaf having a rounded apex and tapering base
oblong leaf Noun a simple leaf that is rounded at each end with parallel sides
obovate leaf Noun an egg-shaped leaf with the narrower end at the base
ovate leaf Noun an egg-shaped leaf with the broader end at the base
orbiculate leaf Noun circular or nearly circular leaf
odd-pinnate leaf Noun a pinnate leaf with a single leaflet at the apex
oak fern Noun bright blue-green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere
ostrich fern Noun tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes
oblong woodsia Noun a common rock-inhabiting fern of northern temperate regions having rusty-brown stipes and lanceolate pinnate fronds
orange milkweed Noun erect perennial of eastern and southern United States having showy orange flowers
old growth Noun forest or woodland having a mature or overly mature ecosystem more or less uninfluenced by human activity