[CROSS- 3 + WORT.]
1. A name of various plants having leaves arranged in the form of a cross, or whorl of four; esp. Galium cruciatum (also Crosswort Bedstraw); also of the non-British plants Vaillantia cruciata, Eupatorium perfoliatum, and the genus Crucianella. Crosswort Gentian, Gentiana cruciata.
1578. Lyte, Dodoens, IV. lxxvii. 541. Croswort is a pale greene herbe, drawing nere to a yellow Popingay colour . The leaues be smal alwayes foure growing togither in fashion lyke to a Crosse at euery ioynt.
1597. Gerarde, Herbal, II. c. § 3. 352. Crossewoort Gentian.
1756. Watson, in Phil. Trans., XLIX. 853. Crosswort or Mugweed.
1866. Treas. Bot., 352. Crucianella, a genus of herbaceous plants, called Crosswort and Petty Madder.
2. pl. A book-name for the N.O. Cruciferæ (plants with cruciform flowers).
1861. Mrs. Lankester, Wild Flowers, 29. [A] very extensive and useful family of plantsCruciferæ or Crossworts.
1884. Miller, Plant-n., Cross-wort, any cruciferous plant.