Invasive: Wavyleaf Basketgrass Wavyleaf basketgrass (Oplismenus undulatifolius) is a low-lying, trailing perennial grass that is less than one foot tall. The leaf sheaths and stems are noticeably hairy. Leaf blade up to about 2" long; tapering to a blunt Can grow to 18". Undulatifolius Description: The leaf blades are flat, dark green, about 0.5 inches wide and 1.5 to four inches long, with rippling waves across the blade. It is adapted to forest understory, where it creates dense continuous carpets, outcompetes other ground-layer species, and suppresses shrub and tree seedlings. Symbol Scientific Name Other Common Names; OPUN: Oplismenus undulatifolius (Ard.) It originates from Southern Europe and Southeast Asia. By By Jill Rosen and The Baltimore Sun. A new invasive plant has arrived in Carroll County, wavyleaf basketgrass (Oplismenus hirtellus ssp. The species invades temperate environments and is typically found in full canopy hardwood forests, forest margins and shady riparian zones. Fun fact: Wavyleaf basketgrass is similar in appearance to another, far more common invasive: Japanese stiltgrass. It has been recorded in the coastal plain, piedmont and montane regions. Invasive plant Information. Wavyleaf Basketgrass was first found in Maryland in 1996 and quickly spread into Virginia and Pennsylvania. In the United States, wavyleaf basketgrass has been re - ported as invasive in Hawaii, Pennsylvania, Virginia, and West Virginia. 2021. Report infestations to the national mapping project through the. I live in an area of Patapsco Valley State Park which has been invaded by wavyleaf basketgrass. undulatifolius). Wavyleaf Basketgrass (Oplismenus undulatifolius), an introduced subspecies of native basketgrass, has spread to cover thousands of acres of public and private land in Maryland and Virginia since its initial discovery in Patapsco Valley State Park in the 1990s.In 2016, a contractor with the county removed a single plant found in Donaldson Run Park. National Park Service. undulatifolius). Up to 4" long, dark bluish-green, with distinct ripples like unfolded pleats across width of the blade and long tapering tip; leaf base touches the stem, but does not clasp it, sheaths of leaves fuzzy, Plants perennial; Overall plant height usually under 18"; branching from base with long, trailing stems (stolons) that root at nodes. Early Detection & Distribution Mapping System. Hairy stems. What is Wavyleaf Basketgrass? A new invasive plant has arrived in Carroll County, wavyleaf basketgrass (Oplismenus hirtellus ssp. Wavyleaf basketgrass may be a very good candidate for Early Detection – Rapid Response. Roem. It grows in dense patches in wooded natural areas preventing the growth of native plants and trees. This Asian grass was first discovered growing in small patches in Patapsco Valley State Park in the 1990s. undulatifolius) Wavyleaf basketgrass is an exotic, invasive grass that was first found in Maryland in 1997, including parts of Patapsco State Park. Seeds mature in late September through frost. P. in Little Paint Branch Park in Prince George's County, MD I accessed extension.umd.edu/hgic and how to control is not explained except for the following notation, P/D and POST E after description of the invasive … We embody the University's land-grant mission with a commitment to eliminate hunger, preserve our natural resources, improve quality of life, and empower the next generation through world-class education. This invasive is very shade tolerant. Wavyleaf basketgrass is an exotic, invasive grass that was first found in Maryland in 1997, including parts of Patapsco State Park. wavyleaf basketgrass: U.S. Nativity: Exotic Habit: Grass or Grasslike Oplismenus undulatifolius (Ard.) Understanding the mechanisms by which an invasive plant species is able to colonize and successfully expand into native plant communities can help in estimating the potential threat posed by a new invader and predict impacts on community diversity, structure, and function. Wavyleaf basketgrass (WB), which is an introduced sub-species of native basketgrass [O. hirtellus (L.) P. Wavyleaf grows low to the ground and spreads across the forest floor displacing native plant species completely or nearly so. Spikelet flowers. Wavyleaf Basketgrass (Oplismenus undulatifolius), an introduced subspecies of native basketgrass, has spread to cover thousands of acres of public and private land in Maryland and Virginia since its initial discovery in Patapsco Valley State Park in the 1990s.In 2016, a contractor with the county removed a single plant found in Donaldson Run Park. Please cite the EDDMapS as: EDDMapS. ", May be 6 or more inches long, dark green, sheaths noticeably hairy, but leaf blades smooth, 0.5" to 1.5" wide; leaf sheaths constricted at top and leaf blades appear to clasp the stem, Substantial perennial plant up to 4' tall, with thick underground stems (rhizomes). When it blooms, from mid-September to November, the WHAT IS WAVYLEAF BASKETGRASS? Basketgrass is the common name of a species of Oplismenus, a weed commonly found in shady lawns and landscapes. ], is a fast spreading understory grass that forms dense stands in deciduous forests. 2012. An urgent effort is underway to eradicate this fast-spreading invasive that has the potential to … Invasive Plants in Pennsylvania Wavyleaf Basketgrass Oplismenus hirtellus spp. It has since spread through Maryland and Virginia, showing many of the qualities of a successful and damaging invasive species. My property and area around it is gradually being affected. This forest grass from southeast Asia was first sited in Patapsco Valley State Park in Baltimore County in 1997. Wavyleaf basketgrass was confirmed in Delaware in White Clay Creek State Park along the Bryan’s Field Trail last week and the colony was promptly removed. USDA Animal and Plant Health Inspection Service. undulatifolius). & Schult. Wavyleaf basketgrass is a rapidly spreading invasive plant which invades forest understories. Invasive Plants in Pennsylvania Wavyleaf Basketgrass Oplismenus hirtellus spp. Flowers occur at the ends of branches, about 4" branched panicles; feathery white stigmas (pollen-receiving organs) clearly visible; seeds occur in 3-5 pairs of spikelets; each armed with a 1/2" awn or bristle that becomes sticky in the fall, facilitating long-distance dispersal. The plant here was about a foot high. The Culprit This fearsome, invasive grass may be the worst of the worst. In 2012, the U.S. Department Some species known or suspected to be harmful are uncommon enough that Park-wide control or even eradication-the elimination of all individuals-may be the goal of management. It is by Kerrie L. Kyde at Maryland Department of Natural Resources. Bloom period begins in late August; fruiting continues into early October; small branched clusters of seeds at the ends of upright or reclining stems. REC, Western Maryland States where wavyleaf basketgrass occurs. Wavyleaf basketgrass . Seed spikeletPhoto: Garrett Waugaman, M-NCPPC Weed Warriors, Bugwood.org, Dense patch of wavyleaf basketgrassPhoto: Kerrie L. Kyde, Maryland Department of Natural Resources, Bugwood.org, Cultural control: prevent going to seed; hand pulls easily--very little root; do not compost plants with seed heads, Garrett Waugaman, M-NCPPC Weed Warriors, Bugwood.org, Kerrie L. Kyde, Maryland Department of Natural Resources, Bugwood.org. Wavyleaf Basketgrass A New Forest Invader in Maryland This Asian grass was first discovered growing in small patches in Patapsco Valley State Park in the 1990s. in Little Paint Branch Park in Prince George's County, MD The seeds are easily moved around by people and animals because they are sticky and adhere to shoes, clothing, tires, animal fur, and paws. DNR and its partners are working to reduce this spread by controlling the invader in newly discovered locations. When it blooms, from mid-September to November, the Image 5389750 is of wavyleaf basketgrass (Oplismenus undulatifolius ) foliage. DO NOT walk through patches of the grass during the fall, when the awns are sticky and you can carry the seed with you by mistake and spread the grass. Wavyleaf basketgrass is a rapidly spreading invasive plant which invades forest understories. 8/13/2018: Wavyleaf Basketgrass. The Maryland populations are still small, though spreading, and the grass can be removed successfully either by hand-weeding or by treating with 1-2% glyphosate, according to the work done so far in Little Paint Branch Park. the closest relative of Wavyleaf basketgrass, has only a few hairs if any on the leaf sheaths and stems. Remove it from your property. The leaf sheaths and stems are noticeably hairy. (Oplismenus hirtellus spp. It was developed by the University of Georgia's Center for Invasive Species and Ecosystem Health. Basketgrass is the common name of a species of Oplismenus, a weed commonly found in shady lawns and landscapes.It is also known as woodsgrass, jewgrass and wavyleaf basketgrass. Undulatifolius Description: The leaf blades are flat, dark green, about 0.5 inches wide and 1.5 to four inches long, with rippling waves across the blade. Wavyleaf invasions can lead to altered habitats, a loss of biodiversity and a reduction in pollinator populations. wavy but no pleats across the face of the blade; leaves clasp the stem, Annuals up to 2' but generally under 1' tall, branched, often bending over and rooting at the nodes, sparsely hairy, Open broomlike cluster of seeds closely spaced along "fingers. For more information about Wavyleaf basketgrass’ distribution, please check out EDDMapS. Small carpetgrass can be easily hand weeded, although for large infestations, chemical control with 2% glyphosate applied carefully by backpack sprayer is effective. Scientists don’t know how it arrived here, but within a decade, it had spread to cover thousands of acres on public and private land in both Maryland and Virginia, the only two states where it has been documented. Central Maryland Maryland has become ground zero for a new invasive species threat, wavyleaf basketgrass. It is capable of quickly outcompeting native plants to become the dominate understory species. Image 5389750 is of wavyleaf basketgrass (Oplismenus undulatifolius ) foliage. An EDRR species is an invasive plant that is not widespread in a particular area and may be able to be eradicated. WHAT IS WAVYLEAF BASKETGRASS? WLBG is similar in appearance to Japanese stiltgrass [Microstegium vimineum (Trin.) An EDRR species is an invasive plant that is not widespread in a particular area and may be able to be eradicated. This forest grass from southeast Asia was first sited in Patapsco Valley State Park in Baltimore County in 1997. Website developed by The University of Georgia - Center for Invasive Species and Ecosystem Health and the National Park Service in cooperation with the Invasive Plant Atlas of New England, Invasive Plant Control, Inc., USDA Forest Service, wavyleaf basketgrass PAUN3: Panicum undulatifolium Ard. Beauv.] Wavyleaf Basketgrass, or Oplismenus hirtellus undulatifolius. It often occurs with Japanese stiltgrass. NPS Photo - Jake Hughes. The grass spreads quickly by … Oplismenus undulatifolius, commonly known as wavyleaf basketgrass, is a species of perennial grass from the family Poaceae that is native to Eurasia, specifically Southern Europe through Southern Asia. Ecologists believe that wavyleaf basketgrass could become even more widespread and damaging than Japanese stiltgrass, with which it shares habitats. Delicate, airy, open-branched panicles at the ends of the stems, giving the appearance of miniature Christmas trees in overall shape . Both species, and others, can … REC, Lower Eastern Shore Wavyleaf basketgrass was first discovered in Maryland in 1996 in Patapsco Valley State Park, near Baltimore MD. It is not known whether this species is invasive in other countries. It is capable of quickly outcompeting native plants to become the dominate understory species. & Schult. REC, Glyphosate (Roundup®) Information and Alternatives for Weed Management, The Maryland Department of Natural Resources. Photo by K. L. Kyde. The University of Georgia - Center for Invasive Species and Ecosystem Health. Wavyleaf basketgrass was first discovered in Maryland in 1996 and has since been found in several counties in Maryland and Virginia. U.S. National Early Detection and Rapid Response System for Invasive Plants; The Global Invasive Species Database, ISSG, ICUN. View the map of wavyleaf basketgrass sightings. Japanese stiltgrass Flowers & Seeds, Photo by Leslie J. 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