Erigeron canadensis (synonym Conyza canadensis) is an annual plant native throughout most of North America and Central America. It is also widely naturalized in Eurasia and Australia. …

Horseweed, scientifically known as Conyza canadensis, is a resilient weed that can quickly dominate various environments. It can reach heights of up to 6 feet and produces numerous …

Horseweed or marestail (Conyza canadensis) is a widespread and common agricultural and landscape weed in New York, where it is a problem in grape, berry, apple, vegetable, and field …

Horseweed originated in North America and is very widespread there, but has spread to inhabited areas of most of the temperate zone of Asia, Europe, and Australia. It is much the most …

Horseweed (Conyza canadensis) is wild, edible and nutritious food. Identify horseweed via its pictures, habitat, height, flowers and leaves.

Horseweed, also called marestail (Conyza canadensis), is a winter annual or summer annual weed that is native to North America. In North Dakota, horseweed is most troublesome when it …

Horseweed, also called mare's tail, is a summer annual or biennial broadleaf plant. It is found throughout California to about 6600 feet (2000 m) and inhabits agricultural land, disturbed …

Horseweed (Erigeron canadensis) is a winter or summer annual found in waste areas, roadsides and turf. It can vary greatly in height according to the soil it grows in, and the immature rosette …

Sep 15, 2025 · Horseweed plants range from one to five feet tall. The erect stems may be branched, especially near the top. The alternate, rather narrow leaves are one to three inches …

Horseweed is a favorite host for tarnished plant bugs which are a major pest of cotton. Horseweed contains volatile oils, tannic acid and gallic acid that may cause mucosal and skin irritation in …