TITLE

DOS ESPECIES DE AMBROSIA (COMPOSITAE, HELIANTHEAE) ADVENTICIAS EN EL CENTRO DE MEXICO

AUTHOR(S)
Rzedowski, Jerzy; De Rzedowski, Graciela Calderon
PUB. DATE
July 1998
SOURCE
Acta Botanica Mexicana;1998, Issue 43, p57
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ambrosia camphorata (Greene) Payne and A. cordifolia (A. Gray) Payne reveal a remarkable disjunct distribution. Both are members of the flora of large areas of the Sonoran arid zone and also grow in a relatively limited portion of the states of San Luis Potos�, Guanajuato and Quer�taro. In view of the fact that the center of diversity and of probable origin of this group of plants is localized in northwestern Mexico and on account of their apparent behavior as invasors in the central part of the country, it is believed that these species should have arrived in the latter region in relatively recent times. The XIX century is postulated as a possible epoch of their migratory movement.
ACCESSION #
20287523

 

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