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- Vt., Va., W.Va., Wis. Hybrids of Spiranthes lacera var. gracilis with S. vernalis are known as Spiranthes ×intermedia Ames. None. None. window.propertie4 KB (264 words) - 22:11, 5 November 2020
- virginiana var. macrophylla. On the Ozark Plateau, H. virginiana and H. vernalis are sympatric. There the petals of H. virginiana are often reddish at the6 KB (608 words) - 22:48, 5 November 2020
- the Gulf counties to eastern Texas. Hybrids of Spiranthes praecox with S. vernalis are known as Spiranthes ×meridionalis P. M. Brown. None. None. window.4 KB (388 words) - 22:11, 5 November 2020
- origin is unknown, on morphologic grounds C. J. Sheviak (1990) proposed S. vernalis and S. porrifolia as possible parents. Sheviak, C. J. 1990. A new Spiranthes4 KB (340 words) - 22:11, 5 November 2020