• WordNet 3.6
    • n spiderwort any plant of the family Commelinaceae
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Webster's Revised Unabridged Dictionary
    • n Spiderwort (Bot) An American endogenous plant (Tradescantia Virginica), with long linear leaves and ephemeral blue flowers. The name is sometimes extended to other species of the same genus.
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Century Dictionary and Cyclopedia
    • n spiderwort A plant of the genus Tradescantia, especially T. Virginica, the common garden species. It is a native of the central and southern United States, and was early introduced into Euro. pean gardens. The petals are very delicate and ephemeral; in the wild plant they are blue, in cultivation variable in color, often reddish-violet.
    • n spiderwort By extension, any plant of the order Commelinaceæ; specifically, Commelina eælestis, a blue-flowered plant from Mexico. The name is also given to Lloydia serotina. mountain-spiderwort; to Anthericum (Phalangium) Liliago, St. Bernard's lily; and to Paradisia (Czackia) Liliastrum, St. Bruno's lily—all Old World plants, the last two ornamental.
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In literature:

The motor cars were full of wild phlox and daisies and spiderwort.
"Fanny Herself" by Edna Ferber
"The Botanical Magazine, Vol. 3" by William Curtis
Another common one is the spiderwort already referred to.
"Elements of Structural and Systematic Botany" by Douglas Houghton Campbell
The spiderwort was a rich blue with its two large petals rounded, while the third one was tiny and colorless.
"Girl Scouts in the Adirondacks" by Lillian Elizabeth Roy
It is called spiderwort, spider lily, ink flower, king's crown, and various other names.
"Prairie Smoke (Second Edition, Revised)" by Melvin Randolph Gilmore

In news:

Ridding garden of spiderwort can be a chore.
Spiderwort has the unusual ability to detect nuclear radiation.
Can you send some rain our way.With apologies to Teri for the title, there is a festival of spiderworts this spring in Red Rock.
That sounds like our native spiderwort, and it is, indeed, a cousin of wandering Jew.