Helianthus maximiliani Asteraceae

The next examples concern species of Ambrosia L. that are characterized, in the first, by a north-south variation, and in the second, an east-west one, with the added feature of different ploidy levels. The work is that of Seaman and Mabry (1979a, b). In the first example, we will look at A. ambrosioides (Cav.) Payne sampled from southern 

Sample Site n Head Sesquiterpene ISOL COSA ILLA COST TULP  

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