Plants

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Pictures of the Week—Orchids

Able to identify the orchids in these photos?

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Bamboo Steps Up

An ancient plant becomes a new sensation

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Wild Things: Life As We Know It

Mammoths, Clownfish and Traveling Plants

35 Who Made a Difference: Mark Plotkin

An ethnobotanist takes up the cause of rain forest conservation

35 Who Made a Difference: Wes Jackson

In Kansas, a plant geneticist sows the seeds of sustainable agriculture

In his greenhouse, Ragan Callaway pits spotted knapweed plantings (left) against native Montana grasses (right), trying to outwit the weed's chemical weaponry.

Wicked Weed of the West

Spotted knapweed is driving out native plants and destroying rangeland, costing ranchers millions. Can anybody stop this outlaw?

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Stimulants

Both ginseng and dolphins evoke passionate emotions

American ginseng—whether wild or cultivated (for sale at left in New York)—commands higher prices than Asian varieties.

Getting to the Root of Ginseng

Questions about the herb's health benefits haven't cooled the red-hot market in wild American ginseng

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Kudzu: Love It — or Run

Aggressive weed that "grows like the devil" and will not die is manna for sheep, cows and folks who use it to cure hangovers, weave baskets and make jelly

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When Plants Migrate

The study of how plants moved north after the last ice age could mean new directions for conservation

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Hot-Rock Cooking Party

For archaeologists, the proof is in the pudding— or rather, in the agave, cactus and other goodies

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Wastewater Problem? Just Plant a Marsh

For some of the toughest environmental cleanups, plants can do it better and cheaper than we can

Kauai Wildlife Refuge

A Onetime Rancher Wages Lonely War to Save Rare Plants

Working alone, by hand, one man is turning 100 acres of alien trees into a refuge for Hawaii's endangered botanical treasures

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The Deep-Sea Floor Rivals Rain Forests in Diversity of Life

Blue luminescence and marine snow define a world where millions of species of worms and other invertebrates live out their lives

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A Giant Shrugs Off Vandalism, Poaching, Tales of Its Demise

The Sonoran Desert's mighty saguaro cactus is the living embodiment of the Southwest, a 'charismatic megaplant' that people care about

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