absinth wormwood – Artemisia absinthium
1 People Contributing
1 Observation(s)
1 place(s)
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Appearance
Artemisia absinthium is an herbaceous, perennial plant that can grow up to 5 ft. (1.5 m) tall. It has many branching stems arising from a woody base.
Foliage
Leaves are alternate, gray-green, 1-4 in. (2.5-10.2 cm) long and give off a strong sage-like scent when crushed. Lower leaves are divided into 2-3 segments and the upper leaves are not divided.
Flowers
Flowering occurs in midsummer, when pale yellow, tubular flowers develop in drooping heads in the axils of the leaves.
Fruit
Seeds are small and easily scattered being dispersed mainly by wind, water, and animals. Each stem can produce up to 50,000 seeds.
Ecological Threat
Artemisia absinthium invades open and disturbed sites such as pastures, rangelands, cropland, stream banks, prairies, and old fields. The plant is native to Europe and was first introduced into the United States in the mid-1800s.
Artemisia absinthium is an herbaceous, perennial plant that can grow up to 5 ft. (1.5 m) tall. It has many branching stems arising from a woody base.
Foliage
Leaves are alternate, gray-green, 1-4 in. (2.5-10.2 cm) long and give off a strong sage-like scent when crushed. Lower leaves are divided into 2-3 segments and the upper leaves are not divided.
Flowers
Flowering occurs in midsummer, when pale yellow, tubular flowers develop in drooping heads in the axils of the leaves.
Fruit
Seeds are small and easily scattered being dispersed mainly by wind, water, and animals. Each stem can produce up to 50,000 seeds.
Ecological Threat
Artemisia absinthium invades open and disturbed sites such as pastures, rangelands, cropland, stream banks, prairies, and old fields. The plant is native to Europe and was first introduced into the United States in the mid-1800s.
Places monitoring this species
- Pike and San Isabel National Forests
- Bridger-Teton National Forest
- Payette National Forest
- Arapaho-Roosevelt National Forest
- Bighorn National Forest
- Black Hills National Forest
- Grand Mesa, Uncompahgre, and Gunnison National Forest
- Medicine Bow-Routt National Forest
- San Juan National Forest
- Shoshone National Forest
- White River National Forest
- Mt. Baker-Snoqualmie National Forest
- Little Missouri National Grassland
- Oglala National Grassland
- Cedar River National Grassland
- Grand River National Grassland
- Sheyenne National Grassland
- Fort Pierre National Grassland
- Buffalo Gap National Grassland
- Pawnee National Grassland
- Nebraska National Forest
- Samuel R. McKelvie National Forest
- Albeni Falls Dam
- Grand Teton National Park