marestail
Conyza canadensis
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Weed Characteristics
| Other names: | horseweed, horseweed fleabane, mares tail, Canadian horseweed, Canada horseweed, fleabane |
| Leaf type: | Broadleaf |
| Flowers: | White |
Leaves are thin with lobed ends and white hairs on the back. The small, white flowerheads appear in mid to late summer. Along with ragweed, this weed's pollen is one of the leading causes of fall allergies. Prefers full sun and tolerates drought. Grows 2 to 5 ft. tall.
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Taxonomic data last retrieved March 30, 2012, from the Integrated Taxonomic Information System on-line database, http://www.itis.gov.
Taxonomic data last retrieved March 30, 2012, from the Integrated Taxonomic Information System on-line database, http://www.itis.gov.