| Author | Ruiz & Pavon | |
| Distribution | Across 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. | |
| Abundance | Frequent to common in the Mountains, uncommon to infrequent in the Piedmont, but rare in the Sandhills and Coastal Plain. | |
| Habitat | Roadsides, fields, cropfields, campus weed, garden weed, waste lots, woods along creek. | |
| Phenology | Flowering and fruiting May-November. | |
| Identification | The 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 Comments | A synonym is G. ciliata.
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| Other Common Name(s) | | |
| State Rank | SE | |
| Global Rank | GNR | |
| State Status | | |
| US Status | | |
| USACE-agcp | FACU link |
| USACE-emp | FACU link |
