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- 4-H club children examine plants
- In this black and white photograph, a black boy wearing thick-rimmed glasses is sitting at a school desk and examining a plant. The rootball is exposed and he is pulling out a few strands of the root system. Surrounding him and looking on are six other children,...
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- 4-H Club family in their garden

- In this black and white photograph, three members of the Sauls family, two older girls dressed in skirts and a young boy in overalls, are seen planting a field in Wake County, North Carolina. The boy is shown making holes in the soil with a hoe. One of the...
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- Agrimony

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- Angelica

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- Bear grass on Highline Trail in Glacier National Park, MT

- Bear grass on Highline Trail in Glacier National Park, Montana. The delicate, cream-colored flowers bloom in a dense mass shaped like a club. Bear grass, despite its name, is more closely related to lilies than to grass. It propagates by way of rhizomes, which...
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- Bittersweet

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- Blackcurrant

- The blackcurrant is one of the three edible species of currant; the others are redcurrant and whitecurrant. Blackcurrants grow on a small shrub, Ribes nigrum, and are native to central and northern Europe and northern Asia.
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- Bloodwort

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- Blooming Cactus in Canyonlands National Park

- The beautiful flowers of the Claret Cup Cactus grow amid the long white spines of the plant which is growing in a rock face along a trail in Canyonlands National Park. The cacti provide food for rodents living in the harsh landscape.
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- Blooming cactus in Zion National Park, Utah

- A cactus, possibly a type of prickly pear, blooms in Zion National Park, Utah. Zion National Park is home to some of Utah's most diverse flora and fauna. It hosts over 900 species of plants, including at least 8 common varieties of cacti and many more succulents....
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- Blueberries

- This photograph shows blueberries ripening on the bush. There are several species of blueberry (genus Vaccinium) native to North America, and North Carolina in particular. In 2001, the North Carolina General Assembly named the blueberry...
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- Bulrushes

- Photograph of dark green bulrushes (Scirpus atrovirens). Bulrushes are aquatic grass-like plants that grow in marshes or wetlands. They have cylindrical, usually hollow, stems. The species Scirpus atrovirens is...
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- Burdock

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- Cacti on Ajo Mountain Drive, Organ Pipe Cactus National Monument, AZ

- Cacti on Ajo Mountain Drive, Organ Pipe Cactus National Monument, AZ. President Franklin D. Roosevelt created Organ Pipe Cactus National Monument on April 13, 1937. The monument protects a diverse section of the Sonoran Desert, 95% of which is designated wilderness....
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- A cactus with rose-colored spines near Death Valley, CA

- A cactus with rose-colored spines and green flesh near Death Valley, California. Though the surrounding Mojave Desert is rich with cacti and other succulent species, they are a fairly rare sight in Death Valley due to the extreme heat and salinity of much...
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- Catsfoot

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- Chain fruit cholla on Ajo Mountain Drive, Organ Pipe Cactus National Monument, AZ

- Chain fruit cholla on Ajo Mountain Drive, Organ Pipe Cactus National Monument, Arizona. Chain fruit cholla is also known as jumping cholla for the ease with which the cactus' stems detach. Just brushing by it can leave stems attached to your clothing, giving...
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- Chamomile

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- Cinquefoil

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- A cliff on the way to the Emerald Pools in Zion National Park, Utah

- A cliff on the trail to the Emerald Pools in Zion National Park, Utah. The trail is scattered with boulders as well as small trees and shrubs. The Lower Emerald Pool trail follows the North Fork of the Virgin River and is shaded by cottonwood and box elder...
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