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Giant Ragweed

Ambrosia trifida

Description:

These plants were up to six feet tall, with many branches topped with tiny yellow flowers. Leaves were singular in some places, but three-pointed as they got bigger. The smaller top flowers are the male flowers, and those in the cleft are the female.

Habitat:

open field

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BlueAppaloosa
Spotted by
BlueAppaloosa

Colorado, USA

Spotted on Sep 9, 2016
Submitted on Sep 11, 2016

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