The Virginian Spider-wort.
Tradescantia virginica, Willd. Sp. Pl. vol. ii. p. 16. Pursh, Fl. Amer. vol. i. p. 218.—Hexandria Monogynia, Linn. Junci, Juss.
This species is distinguished by its erect, succulent stem; elongated, lanceolate, smooth leaves; and umbellate, subsessile flowers, which are of a deep purple colour, with yellow anthers.