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Helianthus porteri is a species of sunflower known by the common names Porter's sunflower, Stone Mountain daisy and Confederate daisy. The term "daisy" is a imprecise because the species is a sunflower (Helianthus) rather than a daisy (Bellis and related genera). Likewise, although the plant grows on Stone Mountain, GA, its range extends well beyond. The connection to the Confederacy is through Stone Mountain which contains a confederate monument, although the connection is tenuous as the species was named before the Civil War in 1849 by Harvard botanist Asa Gray in honor of Thomas Conrad Porter, a Pennsylvanian minister and botanist who collected the plant in Georgia. Gray initially named the plant Rudbeckia porteri, changed to Helianthus in 1998 by John F. Pruski. The common name Porter'

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  • Helianthus porteri is a species of sunflower known by the common names Porter's sunflower, Stone Mountain daisy and Confederate daisy. The term "daisy" is a imprecise because the species is a sunflower (Helianthus) rather than a daisy (Bellis and related genera). Likewise, although the plant grows on Stone Mountain, GA, its range extends well beyond. The connection to the Confederacy is through Stone Mountain which contains a confederate monument, although the connection is tenuous as the species was named before the Civil War in 1849 by Harvard botanist Asa Gray in honor of Thomas Conrad Porter, a Pennsylvanian minister and botanist who collected the plant in Georgia. Gray initially named the plant Rudbeckia porteri, changed to Helianthus in 1998 by John F. Pruski. The common name Porter's sunflower therefore most closely accords with the history of botanical discovery and naming. The species is native to the southeastern United States, such as Alabama and Georgia, but has been introduced to granite outcrop areas in North Carolina where it is aggressively weedy. Helianthus porteri grows on thin soils on and around flat rock granite and gneiss outcrops. It is an annual herb up to 100 cm (40 inches) tall. One plant usually produces 5 or more flower heads, each containing 7 or 8 yellow ray florets surrounding 30 or more yellow disc florets. (en)
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  • 47158976 (xsd:integer)
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  • 5162 (xsd:nonNegativeInteger)
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  • 1112811080 (xsd:integer)
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dbp:authority
  • Pruski 1998 not Heiser 1978 (en)
dbp:bot
  • medic (en)
dbp:date
  • May 2021 (en)
dbp:genus
  • Helianthus (en)
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  • Helianthus porteri on Stone Mtn. (en)
dbp:name
  • Porter's sunflower, also known as Stone Mountain or Confederate daisy (en)
dbp:species
  • porteri (en)
dbp:synonyms
  • *Gymnolomia porteri ( A.Gray) *Heliomeris porteri ( Cockerell) *Rudbeckia porteri (A.Gray) *Viguiera porteri ( S.F.Blake) (en)
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  • Helianthus porteri is a species of sunflower known by the common names Porter's sunflower, Stone Mountain daisy and Confederate daisy. The term "daisy" is a imprecise because the species is a sunflower (Helianthus) rather than a daisy (Bellis and related genera). Likewise, although the plant grows on Stone Mountain, GA, its range extends well beyond. The connection to the Confederacy is through Stone Mountain which contains a confederate monument, although the connection is tenuous as the species was named before the Civil War in 1849 by Harvard botanist Asa Gray in honor of Thomas Conrad Porter, a Pennsylvanian minister and botanist who collected the plant in Georgia. Gray initially named the plant Rudbeckia porteri, changed to Helianthus in 1998 by John F. Pruski. The common name Porter' (en)
rdfs:label
  • Helianthus porteri (en)
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