International Journal of Plant Sciences, Vol. 166, No. 2 (March 2005), pp. 257-264 (8 pages) Stenocereus eruca and Stenocereus gummosus are two closely related columnar cacti of the Sonoran Desert ...

Biologists continue to debate the genealogy of the cactus family, even differing by a factor of 10 about how many different genera there are. A study based on new genome sequences of four columnar ...

Environmental history of the Sonoran Desert / Thomas R. Van Devender -- Phytogeography of the columnar cacti (tribe Pachycereeae) in Mexico: a cladistic approach / Patricia Dávila-Aranda ... [et al.] ...

Historical patterns of gene flow and vicariance influence the genetic and phylogeographic structure of populations (Avise, 2000) and are two of the most important mechanisms invoked to explain the ...

The saguaro cacti around my museum home look like they are celebrating! Flowers and fruits ring their crowns and the tips of their arms. Soon after the white flowers close, the bright red, open fruits ...

AbstractPlant-pollinator interactions are great model systems to investigate mutualistic relationships. We compared pollinator effectiveness between facultative and obligate nectar-feeding bats to ...

Evolution and systematics / Robert S. Wallace and Arthur C. Gibson -- Shoot anatomy and morphology / Teresa Terrazas Salgado and James D. Mauseth -- Root structure and function / Joseph G. Dubrovsky ...

Add Yahoo as a preferred source to see more of our stories on Google. Despite their prickly appearance, cacti make a great addition to any home and garden space. With their diverse shapes, sizes and ...

The saguaro cactus may be the most recognizable plant in the Southwest. It’s so entwined with this region that it adorns buildings, logos, signs and license plates throughout Arizona. Its likeness has ...

Visitors to Mexico and the U.S. Southwest can't help but stand in awe of the solitary and majestic saguaro, the towering clusters of the organ pipe cactus and Baja's cardón, the appropriately named ...

Visitors to Mexico and the U.S. Southwest can't help but stand in awe of the solitary and majestic saguaro, the towering clusters of the organ pipe cactus and Baja's cardón, the appropriately named ...