Radial growth-climate relationships of white ash ( Fraxinus americana L. Oleaceae) in the eastern United States
The transition from riparian to upland forest plant communities on headwater streams in the southern Sierra Nevada, California, United States
A survey of ontogeny cypsela characters contributing to the infrafamilial characterization of Asteraceae
Reproductive phenology of understory species in an Abies religiosa (Pinaceae) forest in the Magdalena River Basin, Mexico City
Alien plant species establishment is associated with reduced soil acidity in the vicinity of concrete block structures ,
Taxonomic recovery of the species in the Chenopodium neomexicanum (Chenopodiaceae) complex and description of Chenopodium sonorense sp. nov.