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Recently Updated Plant Articles

Japanese Hop

Japanese Hop (Humulus japonicus)

Updated September 17th, 2020

An annual vine native to east Asia, invasive at numerous locations across eastern North America, especially in the northeast.

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Eastern Hemlock

Eastern Hemlock (Tsuga canadensis)

Updated September 8th, 2020

A large, shade-tolerant evergreen conifer native to the Appalacians and northeastern U.S.

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Eastern Redcedar

Eastern Redcedar (Juniperus virginiana)

Updated September 3rd, 2020

A native evergreen conifer of sunny habitats; unlike most conifers, tends to decrease soil acidity.

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Recently Updated Ecoregion Articles

Inner Bluegrass
North America » Eastern Temperate Forests » Southeastern USA Plains » Interior Plateau »

Inner Bluegrass

Updated September 15th, 2020

A relatively flat region in Kentucky with fertile limestone-based soils, heavily utilized for agriculture, and some urbanization.

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Western New England Marble Valleys
North America » Northern Forests » Atlantic Highlands » Northeastern Highlands »

Western New England Marble Valleys

Updated September 11th, 2020

A set of narrow, irregular valleys, utilized for agriculture, underlain by calcium-rich rocks and covered in glacial drift.

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Swamps and Peatlands
North America » Eastern Temperate Forests » Mississippi Alluvial & Southeast USA Coastal Plains » Middle Atlantic Coastal Plain »

Swamps and Peatlands

Updated September 11th, 2020

A collection of peaty, forested wetlands, mostly in North Carolina, slightly into Virginia.

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Recently Updated ID / Comparison Guides

collage of Trumpetweed and Spotted Joe Pye Weed

Trumpetweed (Eutrochium fistulosum) vs. Spotted Joe Pye Weed (Eutrochium maculatum)

Updated September 25th, 2020

These two species are sometimes confused in the northeast where their ranges overlap broadly; both are found in wet, sunny habitats. They are usually easily distinguished by a variety of attributes, including stems, inflorescence color and shape, plant height, and number of leaves per whorl. E. maculatum is more likely to be found in intact natural wetlands with mineral-rich soils, whereas E. fistulosum is more likely in disturbed or degraded habitats.

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collage of Coastal Plain Joe Pye Weed and Spotted Joe Pye Weed

Coastal Plain Joe Pye Weed (Eutrochium dubium) vs. Spotted Joe Pye Weed (Eutrochium maculatum)

Updated September 21st, 2020

These species are easily confused where their ranges overlap, from southern New England through New Jersey. Both inhabit wetlands, have spotted stems, and can be on the shorter side among Joe Pye weeds. However, they are usually easily distinguished by inflorescence shape, number of florets per head, and leaf vein pattern, and sometimes bloom color or number of leaves per whorl. E. dubium prefers more acidic habitats, whereas E. maculatum prefers more mineral-rich soil.

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collage of Coastal Plain Joe Pye Weed and Trumpetweed

Coastal Plain Joe Pye Weed (Eutrochium dubium) vs. Trumpetweed (Eutrochium fistulosum)

Updated September 19th, 2020

These plants are sometimes confused where their ranges overlap in southern New England through the Mid-Atlantic. They are easily distinguished by their stems and leaf vein pattern, and often also by height or number of leaves per whorl. E. dubium is limited to moist, acidic soil, mostly coastally, whereas E. fistulosum inhabits a broader range of wet, disturbed areas and is more common farther inland.

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What We Achieved in 2019

December 30th, 2019

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