Plants
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Plants
Forest invades tundra
The Arctic tundra is under assault from trees, with serious implications for global climate change.
By Janet Raloff -
Agriculture
A vanilla Vanilla
The orchid that gives us vanilla beans has startlingly low genetic diversity, suggesting crops might be susceptible to pathogens, researchers report.
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Archaeology
Resurrection of a biblical tree
Date palm pit found at Masada sprouts at age 2,000, becoming the oldest known seed to germinate.
By Amy Maxmen -
Climate
Goldilocks tree leaves
Leaves mostly keep their cool (or warmth) wherever they live, a finding that might affect reconstructions of past climates.
By Susan Milius -
Ecosystems
Better than a local lady
Orchids lure male pollinators by mimicking the scent of out-of-town female bees.
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Plants
One gene, many shapes
A single genetic change may lead to the notable diversity of leaves seen in Galapagos Island tomato plants.
By Tia Ghose -
Plants
BOOK LIST | Winter Trees
In this picture book, a child uses sight and touch to identify seven common trees, even after they’ve lost their leaves. Charlesbridge Publishing, 2008, 30 p. $15.95 WINTER TREES
By Science News -
Agriculture
Study decodes papaya genome
Scientists have added another plant to the genome-sequencing roster: the tropical fruit tree papaya.
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Plants
Floral Shocker: Blooms shake roots of flowering-plant family
A tiny aquatic plant, once thought to be related to grasses, raises new questions about the evolution of the earliest flowering plants.
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Plants
City life changes style of weed seeds
City living pushes for rapid evolution in the seed strategy of a little yellow flower along French sidewalks.
By Susan Milius -
Plants
Promiscuous orchids
When pollinators aren't loyal to a single species of orchid, the plants maintain their species integrity by stymieing reproduction.