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hairy wood mint |
Noun
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a variety of wood mint |
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hound's-tongue |
Noun
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biennial shrub of Europe and western Asia having coarse tongue-shaped leaves and dark reddish-purple flowers |
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hound's-tongue |
Noun
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perennial shrub of North America having coarse tongue-shaped leaves and pale-blue to purple flowers |
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horse balm |
Noun
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erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers |
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hoary puccoon |
Noun
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perennial North American plant with greyish hairy foliage yielding a red or yellow pigment |
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hot water plant |
Noun
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any plant of the genus Achimenes having showy bell-shaped flowers that resemble gloxinias |
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hedeoma oil |
Noun
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aromatic oil from American pennyroyal |
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hyssop oil |
Noun
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used chiefly in liqueurs |
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horsemint |
Noun
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a coarse Old World wild water mint having long leaves and spikelike clusters of flowers |
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horsemint |
Noun
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tall erect perennial or annual having lanceolate leaves and heads of purple-spotted creamy flowers |
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horsemint |
Noun
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an annual horsemint of central and western United States and northern Mexico |
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henbit |
Noun
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Eurasian plant having toothed leaves and small two-lipped white or purplish-red flowers |
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hedge nettle |
Noun
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foul-smelling perennial Eurasiatic herb with a green creeping rhizome |
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hedge nettle |
Noun
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perennial herb with an odorless rhizome widespread in moist places in northern hemisphere |
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hop marjoram |
Noun
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dwarf aromatic shrub of Crete |
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hemp nettle |
Noun
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coarse bristly Eurasian plant with white or reddish flowers and foliage resembling that of a nettle |
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horse nettle |
Noun
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coarse prickly weed having pale yellow flowers and yellow berrylike fruit |
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hot-rock penstemon |
Noun
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stems in clumps with cream-colored flowers |
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hybrid petunia |
Noun
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hybrids of Petunia axillaris and Petunia integrifolia: a complex group of petunias having single or double flowers in colors from white to purple |
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hairy spurge |
Noun
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much-branched hirsute weed native to northeastern North America |
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henbane |
Noun
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poisonous fetid Old World herb having sticky hairy leaves and yellow-brown flowers |
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horse parsley |
Noun
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European herb somewhat resembling celery widely naturalized in Britain coastal regions and often cultivated as a potherb |
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herb mercury |
Noun
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Eurafrican annual naturalized in America as a weed |
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herbs mercury |
Noun
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Eurafrican annual naturalized in America as a weed |
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hogweed |
Noun
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tall coarse plant having thick stems and cluster of white to purple flowers |
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hemlock water dropwort |
Noun
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European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery |
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hard-skinned puffball |
Noun
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any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles |
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horsehair lichen |
Noun
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any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair |
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horsetail lichen |
Noun
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any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair |
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hypobasidium |
Noun
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special cell constituting the base of the basidium in various fungi especially of the order Tremellales |
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horse mushroom |
Noun
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coarse edible mushroom with a hollow stem and a broad white cap |
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hypha |
Noun
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any of the threadlike filaments forming the mycelium of a fungus |
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half-free morel |
Noun
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a morel with the ridged and pitted fertile portion attached to the stipe for about half its length |
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helvella |
Noun
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any fungus of the genus Helvella having the ascocarps stalked or pleated or often in folds |
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hen-of-the-woods |
Noun
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large greyish-brown edible fungus forming a mass of overlapping caps that somewhat resembles a hen at the base of trees |
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hen of the woods |
Noun
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large greyish-brown edible fungus forming a mass of overlapping caps that somewhat resembles a hen at the base of trees |
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head smut |
Noun
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smut fungus attacking heads of corn or sorghum and causing a covered smut |
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houseplant |
Noun
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any of a variety of plants grown indoors for decorative purposes |
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hemiparasite |
Noun
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a parasitic plant that contains some chlorophyll and therefore is capable of photosynthesis |
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hydrophyte |
Noun
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a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth |
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hydrophytic plant |
Noun
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a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth |
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hemiepiphyte |
Noun
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a plant that is an epiphyte for part of its life |
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husk |
Noun
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outer membranous covering of some fruits or seeds |
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husk |
Noun
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material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds |
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husk |
Verb
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remove the husks from |
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heartwood |
Noun
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the older inactive central wood of a tree or woody plant |
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hart's-tongue fern |
Noun
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common epiphytic or sometimes terrestrial fern having pale yellow-green strap-shaped leaves |
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hart's-tongue fern |
Noun
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Eurasian fern with simple lanceolate fronds |
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hart's-tongue fern |
Noun
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tropical American terrestrial fern with leathery lanceolate fronds |
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haulm |
Noun
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stems of beans and peas and potatoes and grasses collectively as used for thatching and bedding |