Vascular Plants of North Carolina
Account for Fringed Quickweed - Galinsoga quadriradiata   Ruiz & Pavon
Members of Galinsoga with account distribution info or public map:
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Section 6 » Order Asterales » Family Asteraceae
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AuthorRuiz & Pavon
DistributionAcross the state, but with a concentration in the Mountains. Scarce in the Sandhills and southern Coastal Plain. First collected in 1911 on the campus of UNC Chapel Hill, Orange County; then in 1926 in a cropfield in Polk County.

Native of Central and South America; in N.A. across southern Canada and south to FL, AR, KS, CO, WA.
AbundanceFrequent to common in the Mountains, uncommon to infrequent in the Piedmont, but rare in the Sandhills and Coastal Plain.
HabitatRoadsides, fields, cropfields, campus weed, garden weed, waste lots, woods along creek.
PhenologyFlowering and fruiting May-November.
IdentificationThe 2 species of Galinsoga have heads like tiny daisies -- yellow disk and short white rays. The leaves are opposite, on short stalks, mostly ovate, the margins toothed. G. quadriradiata has longer ray florets (2-3 mm long vs. usually less than 1.5 mm and a maximum of 2 mm long in G. parviflora), plus other characters -- see the Weakley (2018) key.
Taxonomic CommentsA synonym is G. ciliata.

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