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Description
Taeniatherum Caput-Medusae, also known as Medusahead, is an invasive grass species native to the Mediterranean region. It is a winter annual or biennial grass that can grow up to 3 feet tall. The plant has a unique inflorescence that resembles the head of Medusa from Greek mythology, hence its common name. Medusahead has become a major problem in many western states of the United States, including California, Oregon, Washington, and Nevada.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Monocotyledonae |
| Order | Cyperales |
| Family | Poaceae |
| Genus | Taeniatherum |
Appearance
Medusahead has a tufted growth habit and can form dense stands that exclude native plant species. The leaves are narrow, flat, and rough to the touch. The inflorescence is a panicle that can reach up to 8 inches long and has numerous spikelets that contain the flowers. The spikelets are densely packed and have long awns that give the inflorescence its unique appearance. The awns can be up to 3 inches long and are sharp, making them difficult to remove from animal fur or clothing.
Care Guide
Medusahead is an invasive species that should not be planted intentionally. If it is present on your property, it is important to control its spread. Here are some tips for managing Medusahead:- Water: Medusahead does not require much water to grow and can tolerate drought conditions.- Fertilization: Medusahead does not require fertilization and can grow well in poor soils.- Soil: Medusahead can grow in a range of soil types, including sandy, loamy, and clay soils.- Sunlight: Medusahead prefers full sun but can also grow in partial shade.- Hardiness zones: Medusahead is adapted to a Mediterranean climate but can also grow in temperate regions.
Common Pests & Diseases
Medusahead is not known to be susceptible to many pests or diseases. However, it can be a host for some plant viruses and can provide a habitat for rodents.
Habitat
Medusahead is adapted to a Mediterranean climate and can grow in a variety of habitats, including grasslands, rangelands, and disturbed areas. It is often found in areas with low rainfall and poor soils.
Question and Answer
Q: Is Medusahead edible?
A: No, Medusahead is not edible and can be toxic to livestock.
Q: How can I control Medusahead?
A: Mechanical control methods, such as mowing or grazing, can help reduce the spread of Medusahead. Chemical control methods, such as herbicides, can also be effective.
Q: Can Medusahead be used for erosion control?
A: No, Medusahead is not recommended for erosion control because it can form dense stands that exclude native plant species.
Q: Is Medusahead a fire hazard?
A: Yes, Medusahead can be a fire hazard because it can form dense stands of dry vegetation.
Related Plants
– Taeniatherum Asperum (Spear Grass)- Taeniatherum Caput-Medusae subsp. Asperum (Spear Grass)- Taeniatherum Caput-Medusae subsp. Caput-Medusae (Medusahead)
References
– “Medusahead (Taeniatherum Caput-Medusae).” USDA Forest Service, www.fs.fed.us/database/feis/plants/graminoid/taecap/all.html.- “Medusahead.” California Invasive Species Council, www.cal-ipc.org/resources/library/publications/ipcw/report34/.- “Medusahead Grass.” California Department of Food and Agriculture, www.cdfa.ca.gov/plant/ipc/encycloweedia/weedinfo/taeniatherum.htm.
