Abstract
Abstract Helianthus porteri (Confederate Daisy), one of the rarest plants in Alabama, has previously been known only from granitic outcrops and glades of the Piedmont province along the state's eastern border. The discovery of new populations at Oak Mountain State Park in the sandstone outcrops of the Valley and Ridge Province led to the search for additional populations in the Piedmont, Valley and Ridge, and Appalachian Plateau provinces. We examined a total of 17 Alabama sites between 2007 and 2013 and documented 5 new populations (and 2 county records)—2 in the Piedmont and 3 in the Valley and Ridge.
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