Convolvulus tricolor, the dwarf morning glory, a plant species native to the Mediterranean Basin
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Clibanarius tricolor, a hermit crab species found in shallow water of the Caribbean Sea
Tricolor | Viola tricolor | tricolor | Vanda tricolor | Octomeria tricolor | Lyriothemis tricolor | Leptotyphlops tricolor | Ipomoea tricolor | Inocybe tricolor | Grotella tricolor | Gilia tricolor | Disphragis tricolor | Convolvulus tricolor | Coleophora tricolor | Clibanarius tricolor | A tricolor warp ''Ikat'' weave from Tenancingo |
Gilia tricolor, the bird's-eye gilia, an annual plant species native to California
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Grotella tricolor, a moth species found in California and Arizona
Ipomoea tricolor, a morning glory species native to the New World tropics
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Inocybe tricolor, a mushroom species widely distributed in temperate forests
Lyriothemis tricolor, a dragonfly species found in Bangladesh, China, India, Japan, Myanmar and Taiwan
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Leptotyphlops tricolor, the three-colored blind snake, a reptile species
Octomeria tricolor, an orchid species endemic to southeastern Brazil
Vanda tricolor, an orchid species found in Laos and from Java to Bali