Conyza ramosissima, the dwarf horseweed,[3] is a species of North American plants in the family Asteraceae.

It is widespread and common across the central part of the United States, its range extending from New Mexico east to Alabama and north as far as Pennsylvania, Ontario, and North Dakota.

[4] The oldest name for the species is Erigeron divaricatus, coined in 1803[5] and still used by some sources.

[7] Conyza ramosissima is a much-branching annual herb sometimes growing to a height of 25 cm (10 inches) or more.

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