Latest from nonnative plants

Presidio’s forest resists the sands of time

February 02, 2012 by Kelly Hackett

The Presidio in San Francisco is a forested oasis, home to around 300 bird species. But once upon a time, the park was coastal dunes with nutrient-poor, shifting soils. Just how the Presidio was transformed is a story of one man's grand ambitions that are still playing out today, as stewards of the Presidio struggle to maintain a forest as an historic landmark.

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Containing an Invasive Weed at Thornewood Preserve

January 01, 2012 by Aleta George

Thornewood Open Space Preserve above the town of Woodside isn't easy to find--unless you're a weed. This area is the only site in California where the plant has been found, but this invasive perennial bunchgrass native to Eurasia and North Africa has infested 10,000 acres in Oregon. A project from the Midpeninsula Regional Open Space District aims to make sure that doesn’t happen here.

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The Invasive Yellow Star Thistle

October 01, 2006 by Aleta George

When yellow star thistle hitched a ride to California on alfalfa seed in the mid-1800s, it found fertile soil, a ...

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The Changing Nature of Joaquin Miller Park

October 01, 2001 by Rex Burress

Over 100 years ago, poet Joaquin Miller found a refuge in the Oakland hills. Today, thousands of residents from the cities below are doing likewise in the park that bears his name.

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