Tag Archives: Porter’s Sunflower

Helianthus porteri (Porter’s Sunflower) Survives Drought at Rocky Face Mountain

Helianthus porteri, Porter’s Sunflower, is a highly specialized sunflower endemic to the harsh conditions of granitic outcrops.  It is found at only two  sites in North Carolina.  One of these is a low elevation granitic dome called Rocky Face Mountain, in … Continue reading

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Granitic Flatrocks and Leaf Shape

The granitic flatrock ecosystem imposes harsh conditions on the resident plant communities in the heat of summer. Plant foliage must tolerate intense sunlight from the open sky, and reflected light and heat from the rock surface. Thin, narrow foliage is … Continue reading

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Helianthus porteri in Alexander County with Notes on Protected Status

Rocky Face Mountain is a low elevation granitic dome lying in the upper Piedmont region of Alexander County, North Carolina.  Helianthus porteri (Porter’s Sunflower) is found here in great abundance, its late fall golden yellow blooms dominating the flora of … Continue reading

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