- Anthoxanthum odoratum is a perennial or winter annual grass that often produces a noticeable seed head by April or May in many of Virginia's hay fields. Anthoxanthum odoratum gives off a distinctive, sweet-smelling odor when mature.
- Leaves are rolled in the sheath and may reach 0.4 in. (10 mm) in width. Upper and lower leaf surfaces, as well as the leaf margins, usually have short hairs.
- A brownish-yellow spike that is approximately 0.75-2.75 in. (2-7 cm) long and 0.5-0.75 in. (1.3-2 cm) wide. Each spike contains many spikelets that are approximately 0.25-0.33 in. (6.5-8.5 mm) long.
- Seedheads develop around April and May and give off a sweet smell.
- Ecological Threat
- This plant is most commonly a weed of pastures, hay fields, roadsides, and ditch banks that is found throughout the southeastern United States and into Kentucky and West Virginia. It is native to Eurasia.
Anthoxanthum odoratum is a sweet-smelling perennial grass with flat blades and spikelike panicles.
The name Anthoxanthum is derived from the Greek, ANTHOS meaning flower and XANTHOS meaning yellow, alluding to the yellow inflorescence.
Anthoxanthum odoratum can be distinguished from other grass species by its perennial habit and sweet, vanilla scent, especially when dry.
- Element Stewardship Abstract - The Nature Conservancy
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Invasive Listing Sources
- California Invasive Plant Council
- Faith Campbell, 1998
- Georgia Exotic Pest Plant Council - Category 3
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Native Plant Society of Oregon, 2008
- Pacific Northwest Exotic Pest Plant Council, 1998
- University of Hawaii, Botany Department, Hawaiian Alien Plant Studies, 1998
- WeedUS - Database of Plants Invading Natural Areas in the United States
CategoriesCategory: Grass or Grasslike
|Common Name Reference:|| USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|