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Cedrus – Cedar
Genus, Conifer, Terrestrial
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Celastrus
Genus, Flowering plant, Terrestrial
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Centaurea – Knapweed
Genus, Flowering plant, Terrestrial
cnapain dubha, cnapan dubh
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Centranthus
Genus, Flowering plant, Terrestrial
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Centunculus
Genus, Flowering plant, Terrestrial
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Cephalaria
Genus, Flowering plant, Freshwater, terrestrial
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Cephaleuros
Genus, Alga, Terrestrial
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Cerastium – Mouse-Ear
Genus, Flowering plant, Terrestrial
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Ceratochloa
Genus, Flowering plant, Terrestrial
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Ceratophyllum
Genus, Flowering plant, Freshwater, terrestrial
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Chaenomeles – Japonica
Genus, Flowering plant, Terrestrial
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Chaenorhinum
Genus, Flowering plant, Terrestrial
-
Chaerophyllum
Genus, Flowering plant, Terrestrial
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Chaetomorpha
Genus, Alga, Marine, terrestrial
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Chaetonella
Genus, Alga, Terrestrial
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Chaetonema
Genus, Alga, Terrestrial
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Chaetopeltis
Genus, Alga, Terrestrial
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Chaetophora
Genus, Alga, Terrestrial
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Chaetosphaeridium
Genus, Alga, Terrestrial
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Chamaecyparis
Genus, Conifer, Terrestrial