Strand Memorial Herbarium

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Family: Asteraceae   Aster Family

Genus: Conyza   Horseweed
Genus of about 50 annual and perennial species native to tropical and warm temperate regions throughout the world, and also in cool temperate regions in North America and eastern Asia. Closely related to Erigeron.

Scientific Name: Conyza canadensis (L.) Cronq.
Common Name(s): Canadian Horseweed, Fleabane, Hogweed, Marestail, Horseweed Fleabane, Canada Horseweed
Growth Type: annual
Species Description:


Click on the thumbnails to view large image.

Caption:

ID: Hrb-ERICA-001
Source: 35mm slide (photo)
Credit:
Keyword(s): vegetative
Caption:

ID: Hrb-ERICA-002
Source: 35mm slide (photo)
Credit:
Keyword(s): leaf, vegetative
Caption:

ID: Hrb-ERICA-003
Source: 35mm slide (photo)
Credit:
Keyword(s): flowering, inflorescense, vegetative
Caption:

ID: Hrb-ERICA-004
Source: 35mm slide (photo)
Credit:
Keyword(s): inflorescense, mature
Caption:

ID: Hrb-ERICA-005
Source: 35mm slide (photo)
Credit:
Keyword(s): seedling