Eclipta prostrata, False Daisy
Scientific Name: Eclipta prostrata
Common Name: False Daisy
Also called: Eclipta, Yerba de Tago and Yerba de Tajo (Spanish: Soguilla)
Family: Asteraceae, Sunflower Family
Synonyms: (Eclipta alba, Eclipta alba var. prostrata, Eclipta erecta, Eclipta punctata, Sabazia leiachaenia, Verbesina alba, Verbesina prostrata)
Duration: Annual, or perennial, taproot.
Size: To 2 feet.
Growth Form: Forb/herb, low growing, sprawling, crawling, stems green or later reddish-brown, covered with stiff straight hairs throughout (strigose), roots adventitious and may establish at nodes.
Leaves: Green, up to 5 inches long and 1 inch wide, opposite, elliptic or lanceolate, usually without petioles (sessile) margins entire or with small teeth widely spaced along margins.
Flower Color: White, radiate floral heads small, ray flowers are numerous, white narrow and short, disks flowers cream colored or greenish, heads solitary or clusters of 2 or 3, flower inflorescence small stalks or peduncles from leaf axils, fruit is a brown achene.
Flowering Season: June to September, may flower year round in wet warm places.
Elevation: Below 3,500 feet.
Habitat Preferences: Moist and damp areas, along streams and ditches
Recorded Range: All southern states and the eastern half of the United States, Baja California, northern, central and southern Mexico including the Yucatan Peninsula and Costa Rica. Introduced in Hawaii and sub-tropical and tropical areas worldwide. Erratic distribution in Arizona, it may be found in the central part of the state, much of western Arizona and in Navajo and Greenly counties.
North America & US County Distribution Map for Eclipta prostrata.
U.S. Weed Information: Eclipta prostrata is listed in: Weeds of Kentucky and adjacent states: a field guide, Weeds of the Northeast, Weeds of the United States and Canada. Plants included here may become weedy or invasive.
Invasive/Noxious Weed Information: No data available.
Wetland Indicator: Eclipta prostrata is on the USDA 2012 National Wetland Plant List.
Threatened/Endangered Information: The state of New York lists Eclipta prostrata, Yerba-de-Tago as Endangered.
Comments: The interesting classification of plants, and perhaps political designations based on boundaries is evident with False Daisy, treated as weed by several authorities because of its aggressive growth habits while at the same time listed as an endangered species by the state of New York where a few plants enter the southeast part of the states.
False Daisy is one of the first plant species to colonize and perhaps dominate disturbed land.