Taeniatherum - Wikipedia
The only recognized species is medusahead (Taeniatherum caput-medusae) which is native to southern and central Europe (from Portugal to European Russia), North Africa (Algeria, Morocco, Tunisia), and Asia (from Turkey and Saudi Arabia to Pakistan and Kazakhstan).
Medusahead | National Invasive Species Information Center
Medusahead, medusa's head, medusahead rye, medusahead grass. Synonym. Elymus caput-medusae L.; Taeniatherum asperum (Simonkai) Nevski; Hordeum caput-medusae (L.) Crosson & Durand (ITIS) Native To. Mediterranean Region (Archer 2001) Date of U.S. Introduction. First discovered in 1887 (DiTomaso et al. 2008) Means of Introduction.
Washington State Noxious Weed Control Board
General Description. Medusahead, is a nonnative, winter annual grass that can grow up to 2 feet (60 cm) tall. Plants bloom in the spring after many other nonnative annual grasses. Inflorescences are a dense spike with long awns that can be somewhat spreading and twisting, and are covered in …
Cheatgrass and Medusahead | U.S. Geological Survey - USGS.gov
2019年5月23日 · Invasive annual grasses, such as cheatgrass (Bromus tectorum) and medusahead (Taeniatherum caput-medusae), are one of the most significant stressors to rangeland ecosystems in the western U.S. Their expansion and dominance across this area are the most damaging ecosystem agents on this iconic landscape.
Medusahead (Taeniatherum caput-medusae ) is a winter annual grass. It is typically 0.15-0.5m (6-20 in) tall and has distinct bristly seed heads. Medusahead germinates in the fall, overwinters as a seedling, and commences growth in the spring.
Species: Taeniatherum caput-medusae - US Forest Service
In a northwestern California site where medusahead is prevalent, 60% of the vegetation is grassland or woodland/grass. The climate is mediterranean, with cool wet winters and hot dry summers. Mean annual rainfall is 39 inches (980 mm).
Invasive Grasses: Medusahead - SDSU Extension
2023年6月23日 · Grassland managers are encouraged to be on the lookout for Medusahead, an invasive grass that can aggressively out-compete native species. Learn how to identify, report, and manage it before it becomes an issue.
2014年4月15日 · g of ecosystems. Loss of native plant species can permanently change nutrient and hydrologic cy-cles and accelerate eros. on (Olson 1999). The costs of lower productivity and the increased costs of manag-ing medusahead can have effects far beyond the ranch gate, often having a negative impact on.
Medusahead | USU - Utah State University Extension
Growth Characteristics: Medusahead is an extremely competitive grass, completely displacing other desirable grass species. It grows from 6 inches to 2 feet high, producing tillers but very few leaves. Flowering and seed production take place in late spring or early summer, usually 2 to 4 weeks later than most annual grasses.
Detecting Invasive Species: Medusahead - CropWatch
2017年3月10日 · Medusahead is an exotic, invasive, self-pollinated winter annual grass. It germinates in the fall, overwinters as a seedling, and can have multiple flushes. It is typically 6-20 inches tall with distinct bristly seed heads.