Vascular Plants of North Carolina
Account for Slender Flat-top Goldenrod - Euthamia caroliniana   (L.) Greene ex Porter & Britton
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Section 6 » Order Asterales » Family Asteraceae
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Author(L.) Greene ex Porter & Britton
DistributionCoastal Plain, barrier islands, Sandhills, and lower Piedmont -- west to Guilford and Mecklenburg counties.

Current research (2018-21 by B.A. Sorrie) shows a range from southeastern MA to southern FL and southeastern LA; disjunct to northwestern GA.
AbundanceCommon to abundant in the Coastal Plain, and generally common in the eastern Piedmont. Often forms monospecific patches via horizontal rhizomes.
HabitatXeric to dry to moist sandy soil of pine savannas, flatwoods, sandhills, Carolina bay rims, interdune swales, maritime grasslands, openings in pine-oak-hickory woodlands, barrens, old fields, roadsides, powerlines.
PhenologyFlowering and fruiting late August-November.
IdentificationThis goldenrod is readily identified by its multi-branched inflorescence of (usually) hundreds of very small heads, coupled with abundant, skinny leaves less than 2.5 mm wide and that usually show only a single vein. Heads of E. hirtipes and E. graminifolia are larger, leaves are much wider, and have 3 obvious veins.
Taxonomic CommentsSynonyms include Solidago minor and S. microcephala. Some authors lump it within E. tenuifolia, but that is a more northern species that extends southward only to VA.

Other Common Name(s)Slender Goldentop, Coastal Plain Grass-leaved Goldenrod. Slender Goldentop is often used on websites, but the use of "goldentop" instead of "goldenrod" is a seemingly new coinage for which biologists may not quite yet be ready!
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