SAN FRANCISCO — This spring, the dramatic return of a rare, blue iridescent butterfly dazzled onlookers at the San Francisco Botanical Garden in Golden Gate Park. Neighbor John Gale, who visits the ...

CHICO — Why did the caterpillar cross Petersen Memorial Drive? Possibly to feast on the pipevine plant, abundant in Bidwell Park. It’s pipevine swallowtail season, meaning black and orange ...

Add Yahoo as a preferred source to see more of our stories on Google. It is a commonly held belief that one person can’t make much of a difference when it comes to helping the environment. But Tim ...

Butterfly gardening is a popular pastime in North Texas. In our ardor to provide sustenance, however, we may be serving up a deadly dish unwittingly. The iridescent black-and-blue pipevine swallowtail ...

Question: In a May 30, 2008 question regarding the toxicity of certain Aristolochia species to pipevine swallowtail larvae, I had heard the same from at a talk from the curator of the Cockrell ...

Sometimes you place a plant in your garden and forget all about it. That’s how it has been for me with “Aristolochia elegans,” better known as Dutchman’s pipe, pipevine or calico flower. Although I’ve ...

DEAR JOAN: I have a caterpillar question. I found two large, mostly black guys in my yard — one crawling up the stucco of the house, the other clinging to a pot on the patio. Is this a pipevine ...