Hepatica, Sierra Club Wildflower Calendar, 1998 |
Butterfly-weed, Audubon Wildflower Calendar, 1993 |
Round-lobed Hepatica, Audubon Wildflower Calendar, 1992 |
Showy Lady's-slipper, Audubon Wildflower Calendar, 1992 |
Oak Leaves and Hepatica, Audubon Engagement Calendar, 1992 |
Marsh Marigolds, Sierra Club Wall Calendar, 1992 |
Bloodroot, Audubon Wildflower Calendar, 1995 |
Fungus on Branch with Bloodroot, Sierra Club Engagement Calendar, 1993 |
Frosted Gentian, Audubon Engagement Calendar, 1992 |
Morel Mushroom, Sierra Club Pocket Calendar, 1991 |
White Oak, Sierra Club Engagement Calendar, 1993 |
Staghorn Sumac, Arizona Highways Engagement Calendar, 2006 |
Tanseyleaf tanseyaster and rabbitbush, Arizona Highways Engagement Calendar, 2012 |
Lower Antelope Canyon, Arizona Highways Engagement Calendar 2012 |
Barrel Cactus, phacelia, and brittlebush, Arizona Highways Engagement Calendar, 2012 |
Chinle Formation, Arizona Highways Engagement Calendar, 2012 |
Grand Canyon winter, Ariizona Highways Classic Wall Calendar, 2012 |
Fairy duster and brittlebush, Arizona Highways Classic Wall Calendar, 2012 |