Category: Biogeography

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Conifer Forests of Whistler, BC

Subalpine fir in the high elevations of the Coast Mountains near Whistler, BC

Exploring the unique high-rainfall, glacially sculpted forests of the southern Coast Mountains

Whistler, British Columbia is famed for its mountains, but just as magnificent are the ancient forests draped across their flanks—wet, wild, and woven with a diversity of conifers that whisper of deep time. Tucked in the southern Coast Mountains, the forests surrounding Whistler are shaped by a cool maritime climate, abundant precipitation, and a legacy of glaciation that has carved basins, ridges, and deep alluvial valleys. These physical forces, coupled with nutrient-rich colluvial and glacial soils, give rise to complex plant communities where conifers reign.

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Discovering Shasta Snow-Wreath (Neviusia cliftonii)

Eastern Klamath Mountains from Hogback Lookout.

In Search of a Living Fossil in the Eastern Klamath Mountains

This spring, I embarked on my inaugural journey to the far eastern reaches of the Klamath Mountains—a realm where ancient limestone outcrops narrate tales of deep time, and where evolutionary relicts persist in quiet resilience. My quest: to encounter the elusive Shasta snow-wreath (Neviusia cliftonii), a botanical enigma known only to the rugged terrains surrounding Lake Shasta.

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A Life Beneath the Canopy

The Klamath Mountains

How California’s Trees Shaped a Book, a Friendship, and a Calling

I first fell in love with trees as a high school student in the green underworld of the eastern deciduous forests near Williamsburg, Virginia. My teacher, Charles Dubay, believed we should know our world with both precision and appreciation. In his field biology class he taught us the trees twice—once in the fullness of leaf and light, when the crowns cast shade and shimmered in the wind, and again in the starkness of winter, when the branches and bark told their stories—bare.

I first learned about trees in swamps across the eastern piedmont of Virginia.
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Pacific Silver Fir in California

Part 2: Marble Mountain Wilderness

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From Conifers of the Pacific Slope

In conjunction with the Klamath National Forest and the California Native Plant Society Vegetation Team, I completed a mapping and inventory project for Pacific silver fir (Abies amabilis) in California. The first part of this project was along the Siskiyou Crest, near the Oregon-California border. This post is about the populations in the Marble Mountain Wilderness.

In 2016 I embarked on a mapping and inventory project for yellow-cedar (Callitropsis nootkatensis) in California. At the time, I called yellow-cedar California’s rarest conifer. In 2019, new discoveries on the north slopes of Copper Butte and Preston Peak brought the total hectares of yellow-cedar in California to ~21 hectares. With this new data, and that collected in this project, we now know Abies amabilis is California’s rarest conifer*! See table below for stand data summary.

*This excludes the neoendemic California cypresses.

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