| amaranth | (noun) any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food | - |
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| (noun) seed of amaranth plants used as a native cereal in Central and South America | - |
| coelacanth | (noun) fish thought to have been extinct since the Cretaceous period but found in 1938 off the coast of Africa | Synonyms: Latimeria chalumnae |
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| perianth | (noun) collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils | Synonyms: chlamys, floral envelope, perigone, perigonium |
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| pyracanth | (noun) any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries | Synonyms: fire thorn, firethorn, Pyracantha |
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| tragacanth | (noun) a gum used in pharmacy, adhesives, and textile printing | - |
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