Sarracenia purpurea L. ssp. venosa (Raf.) Wherry: Variations in the Carolinas Coastal Plain

Anthocyanin pigment variants of Sarracenia purpurea L. ssp. venosa (Raf.) Wherry were studied in the Carolinas coastal plain. The variations noted are: 1) red veined green pitcher leaves vs. all red/maroon leaves; 2) varying intensity of anthocyanin pigments in sepals; and 3) varying intensity of red color of petals. Data collected in this study and previous related studies indicate that these variations are genetic. The variation in petal color intensity is not directly related to sepal and pitcher color patterns, although the latter two are to each other. In shaded situations, nearly all pitcher leaves are veined to some degree in this area, but in full sunlight some plants have the genetic capacity to produce all red/maroon leaves. It is concluded that these variations are not directly adaptive in present natural or transplant habitats. Possible adaptive significance in other situations is briefly discussed