Artemisia biennis
Encyclopedia
Artemisia biennis is a species of sagebrush
known by the common name biennial wormwood. It is native to Europe.
is a dense rod of clusters of flower heads
interspersed with leaves. The fruit is a tiny achene
less than a millimeter wide.
and noxious weed in parts of North America. It is a weed of several agricultural crops, particularly soybean
s, other types of dry edible bean
s, and sunflower
s.
Sagebrush
Sagebrush is a common name of a number of shrubby plant species in the genus Artemisia native to western North America;Or, the sagebrush steppe ecoregion, having one or more kinds of sagebrush, bunchgrasses and others;...
known by the common name biennial wormwood. It is native to Europe.
Description
This is an annual or biennial herb producing a single erect green to reddish stem up to 2 meters in maximum height. It is generally hairless and unscented. The frilly leaves are up to 13 centimeters long and divided into thin, lance-shaped segments with long teeth. The inflorescenceInflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
is a dense rod of clusters of flower heads
Head (botany)
The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....
interspersed with leaves. The fruit is a tiny achene
Achene
An achene is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate and indehiscent...
less than a millimeter wide.
Invasive species
It is an invasive speciesInvasive species
"Invasive species", or invasive exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions....
and noxious weed in parts of North America. It is a weed of several agricultural crops, particularly soybean
Soybean
The soybean or soya bean is a species of legume native to East Asia, widely grown for its edible bean which has numerous uses...
s, other types of dry edible bean
Bean
Bean is a common name for large plant seeds of several genera of the family Fabaceae used for human food or animal feed....
s, and sunflower
Sunflower
Sunflower is an annual plant native to the Americas. It possesses a large inflorescence . The sunflower got its name from its huge, fiery blooms, whose shape and image is often used to depict the sun. The sunflower has a rough, hairy stem, broad, coarsely toothed, rough leaves and circular heads...
s.