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Hesperantha
Genus, Flowering plant, Terrestrial
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Hesperis
Genus, Flowering plant, Freshwater, terrestrial
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Heuchera
Genus, Flowering plant, Terrestrial
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Hibiscus
Genus, Flowering plant, Terrestrial
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Hieracium – Hawkweed
Genus, Flowering plant, Freshwater, terrestrial
Heboglys
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Hippocrepis
Genus, Flowering plant, Terrestrial
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Hirschfeldia
Genus, Flowering plant, Terrestrial
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Hoheria
Genus, Flowering plant, Terrestrial
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Holodiscus
Genus, Flowering plant, Terrestrial
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Holosteum
Genus, Flowering plant, Terrestrial
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Hordeum
Genus, Flowering plant, Terrestrial
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Hyacinthoides
Genus, Flowering plant, Terrestrial
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Hyacinthus
Genus, Flowering plant, Terrestrial
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Hydrangea
Genus, Flowering plant, Terrestrial
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Hydrocotyle
Genus, Flowering plant, Freshwater, terrestrial
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Hyoscyamus
Genus, Flowering plant, Terrestrial
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Hypericum – St. John's-Wort
Genus, Flowering plant, Freshwater, terrestrial
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Hypochaeris
Genus, Flowering plant, Terrestrial
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Hypopitys – Bird's-nest
Genus, Flowering plant, Terrestrial
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Hyssopus
Genus, Flowering plant, Terrestrial