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- EPA: Pesticides - Pesticide Use Limitations for Pinal County, Arizona11-19-2008
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- ... Table for the Arizona Hedgehog Cactus and the Nichol's Turk Head Cactus Pesticide Table for the Desert Pupfish... Nichol's turk's head vactus is a barrel-shaped cactus with spines growing from vertical, spiraling ridges ...
- Ecosystems | Great Lakes | US EPA02-28-2007
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- Like the related Eupatorium, Liatris heads have only disk florets, in this species numbering more than 15 per head ... is autumn-flowering, having a spike with 4-30 flower heads, with a range of 25-80 florets per head.
- EPA: Pesticides - Pesticide Use Limitations for Pima County, Arizona11-19-2008
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- Females lack the black head and cinnamon breast, but instead are a mottled brown above with a buff head and white breast ... Nichol's turk's head vactus is a barrel-shaped cactus with spines growing from vertical, spiraling ridges ...
- EPA Exposure Research - Environmental Sciences Division Publications: 200403-04-2009
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- The spiny cladoceran (Bythotrephes) possesses morphological adaptations (spines and thick-walled diapause eggs) that lessen impacts of fish ... Because caudal spines are retained throughout life, spine accumulation in sediment traps documents seasonal mortality ...
- Communications Stylebook: Graphics Guide | Communications Development and Review | US EPA07-23-2009
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- The bottom inlay with spines, is to include the EPA publication number and as much ... of the title as possible, on one line on the spine.
- Aging11-17-2009
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- A whole community of Florida Lobster with just their heads and antennas sticking out from underneath... fighting fish with a black line down the middle from head to tail.
- Aging11-17-2009
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- A whole community of Florida Lobster with just their heads and antennas sticking out from underneath... fighting fish with a black line down the middle from head to tail.
- EPA: Pesticides - Pesticide Use Limitations for Coconino County, Arizona11-19-2008
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- Its tiny, white and tan spines are only 6 millimeters (0.24 in) long... Its straight or slightly curved spines are about 2.5 centimeters (1in) long, and are dark brown ...
- Information Impacts Committee | Cooperative Environmental Management | US EPA04-27-2009
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- EPA can easily spend five years debating how many angels can dance on the head of a pin. I would ...
- EPA: Pesticides - Cochise County Arizona11-19-2008
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- Unlike other cacti, this pincushion cactus has no central spines, but typically has 11 to 17 sharp, circular spines... the Desert pupfish, the males turn bright blue on the head and sides, and yellow on the tail.