Sarracenia flava L.: Infraspecific Variation in Eastern North Carolina

ABSTRACT
Five infraspecific venation pattern and color variants of <em>Sarracenia flava</em> L. are herein recognized, briefly described and illustrated. Hybridization among these five polymorphs has resulted in a spectral field picture which led some observers to feel that variation was almost infinite. Various observations and analyses are presented, and thus far they indicate that infraspecific variation in this species and locale seems non-adaptive, within the limits of the present studies. A broad comment on possible evolutionary relationships of these forms is made and pollination mechanisms are reviewed.