chinese yam invasive

Family. Also make note of the location, date and time of the observation. Dioscorea opposita, Thunb., nom. It was brought from China to North America in the 1800s for ornamental, food and medicinal uses. China, Japan, Korea, Taiwan . illeg. Chinese yam Dioscoreaceae ... cherry, lilac, maple, poplar, stone fruits, and the non-native invasive tree-of-heaven (Ailanthus altissima), which it appears to prefer. As a perennial in zones 9 and 10. It has spread from Lousianna to Vermont and can form dense masses of vines that cover and kill native vegetation, including trees, within a variety of moist, disturbed habitats. They are about 8 in. In particular cases, this species may be considered for use under specific management … - Or - use the Midwest Invasive Species Information Network (MISIN) online reporting tool, - Or - download the MISIN smartphone app and report from your phone - http://www.misin.msu.edu/tools/apps/#home, Troy Evans, Great Smoky Mountains National Park, Bugwood.org, Chris Evans, Illinois Wildlife Action Plan, Bugwood.org - Chinese yam "air potato", Chris Evans, Illinois Wildlife Action Plan, Bugwood.org. Once established at this edge, it can spread into the more shaded interior of high-quality forests. Detailed Informations. Established populations of Chinese yam have not been found in Canada. The genus Dioscorea has economic value as a food plant and is used as a traditional Chinese medicine. Research was conducted from 2001 to 2004 to evaluate growth, repro- … Central, North, South High Invasion Risk. Chinese yam (English), cinnamon vine (English) Synonym. While this vine dies back in the winter, it grows and reproduces quickly enough to reduce plant diversity and threaten native ecosystems. It is a member of the Dioscoreaceae or Yam family. 9:04. The Chinese yam is now considered an invasive species in the United States. Plantae. This species is Introduced in the United States. Chinese yam is a deciduous perennial vine native to China. Chinese yam. Learn which landscape plants are becoming invasive and avoid using them. Check out our second invasive plant ID video, this time featuring an invasive vine you might not be familiar with, Chinese Yam. It invades open to shady areas in the Eastern United States. The leaves can be alternate or opposite in arrangement on the stem. In 2001, the USDA Forest Service reported that air yam, Chinese yam, and water yam "pose a demonstrable threat to the integrity of the natural plant communities" in the Southern Region. Chris Evans, University of Illinois, Bugwood.org. Height: Chinese yam is a creeping and climbing vine that may reach up to 5 meters in height given support from trees and shrubs. U.S. Distribution: Chinese yam has spread to 16 southeastern states since its introduction in the 1800’s and has been recorded in some locations in Michigan. Leaves: The leaves are acute to acuminate with a cordate (heart-shaped) base. Chinese yam is found in many habitats including forests, ravines, mountain slopes, along rivers and in disturbed areas. The bulbils or air tubers are present from June to September and resemble very small potatoes. PREV NEXT SUBMIT FINISH. Dioscorea batatas, Dcne. Conclusions for this variety may apply to varieties and strains of marijuana, a schedule I controlled substance as determined by the United States federal government.) Native look-alikes and how you can tell them apart from Chinese yam: Chinese Yam Invasive Species Alert - Printable PDF, se the Midwest Invasive Species Information Network, http://www.misin.msu.edu/tools/apps/#home, Pointed, heart-shaped leaves that are often indented on the sides, opposite or alternate, Slender vines that spiral counter-clockwise, Bulbils or air tubers present from June to September, resemble very small potatoes, Small white or greenish-yellow spikes of flowers that smell similar to cinnamon. Rapid, early growth allows the vine to block out sunlight and shade out native plants. Alternative Native Plants Wild yam (Dioscorea quaternata or Dioscorea villosa) It is a member of the Dioscoreaceae or Yam family. Questions and/or comments to the Bugwood Webmaster, A Field Guide for the Identification of Invasive Plants in Southern Forests, Southeast Exotic Pest Plant Council Invasive Plant Manual, Plant Invaders of Mid-Atlantic Natural Areas, City of Ann Arbor Michigan Parks and Recreation, Georgia Exotic Pest Plant Council - Category 2, Indiana Invasive Species Council - Invasive Plant List, Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007, Jil Swearingen, personal communication, 2009-2017, Kentucky Exotic Pest Plant Council - Severe Threat, Maryland Department of Agriculture's Candidates for Listing of Invasive Plants, Maryland Department of Natural Resources Policy: Restriction on Planting Exotic Invasive Plants, National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List, New Jersey Invasive Species Strike Team 2017 Invasive Species List, New York Regulated and Prohibited Invasive Species - Prohibited, Non-Native Invasive Plants of Arlington County, Virginia, Non-Native Invasive Plants of the City of Alexandria, Virginia, Nonnative Invasive Species in Southern Forest and Grassland Ecosystems, Pennsylvania Department of Conservation and Natural Resources Invasive Plants, WeedUS - Database of Plants Invading Natural Areas in the United States, West Virginia Invasive Species Strategic Plan and Volunteer Guidelines 2014, West Virginia Native Plant Society, Flora West Virginia Project, and West Virginia Curatorial Database System, September 3, 1999, Wisconsin's Invasive species rule – NR 40, Center for Invasive Species and Ecosystem Health, USDA Animal and Plant Health Inspection Service, USDA National Institute of Food and Agriculture. Chinese yam, cinnamon vine Synonyms. Ecological Impacts: Chinese Yam spreads easily into native plant communities and displaces native vegetation. The Global Invasive Species Database was developed and is managed by the Invasive Species Specialist Group (ISSG) of the Species Survival Commission (SSC) of the International Union for Conservation of Nature (IUCN). Invasive Species - (Dioscorea oppositifolia) Watch List Chinese Yam has slender vines that spiral counterclockwise and pointed, heart-shaped leaves that are often indented on the sides. Identity Card. On Tuesday November 10 at 7pm, Erica Clites, Oakland County CISMA director, will discuss new invaders to Oakland County including a recently discovered vine, Chinese yam, and aquatic invasive species including European frog-bit and Red swamp crayfish. Etymology. It forms dense mats that can down branches and kill trees. (20.3 cm) long, wide, and heart to fiddle shaped (margins three-lobed), with prominent, parallel veins. The genus Dioscorea has economic value as a ... www.invasive.org/eastern/eppc/DIOP.html - 14k - Cached - Similar pages Chinese yam: Dioscorea oppositifolia (Dioscoreales: Dioscoreaceae)Invasive Species: any species of insects, … Industrial hemp (NOTE: This assessment is specific to industrial hemp. Area of origin. Dioscorea batatas L. (Synonym) Binominal name. Chinese Yam Invasive Species Fact Sheet. Dioscoreaceae. Native: Tropics and warm temperate regions. Height: Chinese yam is a creeping and climbing vine that may reach up to 5 meters in height given support from trees and shrubs. You may be asked to provide your name and contact information if follow-up is needed. It is a perennial climbing vine, native to China and East Asia. WATCH LIST. Instead, select a beautiful native species such as native yellow honeysuckle or Dutchman’s pipe. Typically, leaves are 4 to 8 cm long and up to 4 cm wide with 7 to 9 veins. (Dioscorea oppositifolia) Distribution Record Density Literature vs Observation Future Range Future Certainty. Life Cycle: Half hardy perennial usually grown as a half hardy annual by gardeners. Their fruits are a three-winged capsule, and their leaves are strongly heart-shaped. Human connections: Introduced from China in the 1800s for ornamental, food, and medicinal uses. Dioscorea oppositifolia (Synonyms: D. polystachya), D. batatas) Jack Ranney, University of Tennessee, Bugwood.org. Species evaluated with the Predictive Tool: Predicted to be invasive and not recommended by IFAS. might easily be mistaken for Chinese yam, but pose no invasive risk. They are heart-shaped to triangular with elongated tips, thin and hairless, 4 to 8 inches (10 to 20 cm) long and 2 to 6 inches (5 to 15 cm) wide and have Long petioles. EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. Leaves are usually more rounded when young or on young plants and fiddle shaped farther along the … Chinese yam Dioscorea polystachya Turcz. It has small, white or greenish-yellow flowers that smell like cinnamon. While it tolerates anything from full sun to deep shade, it prefers intermediate light. Dioscorea batatas, Dioscorea decaisneana, Dioscorea opposita Conclusions by Zone. For more information, visit www.eddmaps.org, State List - This map identifies those states that list this species on their invasive species list or law. Chinese Yam was introduced here as early as the 19th century for culinary and cultural uses and is now considered an invasive plant species in several states. It’s still sold as an ornamental plant, but don’t plant it! It is reported invasive in DC, KY, MD, MO, SC, TN, VA, and WV. The genus Dioscorea is named in honour of … Since its introduction into North America, it has spread throughout the eastern United States. Control and Management: Manual- Mowing or cutting will control the spread of Chinese yam, but will not eradicate it unless it is continued until the root reserves are Common name. Among the most invasive woodland plants is the Chinese Yam, also called the cinnamon vine or air potato. Dioscorea oppositifolia L. (Synonym), Last updated October 2018 / Privacy Native ground cover is also displaced and shaded out, … It can be an invasive species in some areas – please check your local conditions if this is of concern. SUBMIT ALL . The use of these yams is prohibited on National Forest Service lands, and they receive high priority for control funding . The invasive air potato vine has become a major concern throughout Florida and neighboring states. Michigan Invasive Species Information Network (MISIN) Educational Module and Assessment. The bulbils or air tubers are present from June to September and resemble very small potatoes. Dioscorea polystachya Turcz. Dioscorea polystachya or Chinese yam (Chinese: 山 药), also called cinnamon-vine, is a species of flowering plant in the yam family.It is sometimes called Chinese potato or by its Japanese name nagaimo.. Taxonomy. This will aid in verification of your report. Chinese yam, Cinnamon-vine. Habitat: This deciduous vine can be found along roadsides, fence rows, stream banks, ditches, and rich, mesic forests. Chinese Yam - Southeast Exotic Pest Plant Council Invasive Plant ...Chinese yam is a deciduous perennial vine native to China. Dioscorea polystachya is an invasive herbaceous, twining vine that grows to about 16.4 ft. (5 m). The Chinese yam readily invades disturbed habitats with light shade, especially forest edges. Escapes from cultivation and aggressively smothers native plants. Dioscorea batatas Decne. *Detected in Michigan* It invades open to shady areas in the Eastern United States. Currently, the air potato leaf beetle, ... Zanzibar yam, D. sansibarensis; Chinese yam, D. polystachya; and winged yam, D. alata. Suzannah Iott, MDARD Pesticide and Plant Pest Management Division, 517-420-0473. Chinese Yam ranges from the north eastern states of Vermont, south to Georgia, Alabama, Mississippi and Louisiana, and as far west as Oklahoma. Of the aforementioned yam species found in Florida, only the non-native yams produce aerial bulbils. Kingdom. Will be reassessed every 10 years. Local Concern: Chinese yam can grow up to 16 feet in height, engulfing surrounding vegetation along the way. The petiole base is not clasping. Yam: Ornamental; Chinese; Japanese; Wild; White; Purple; Winged; Fourleaf. According to the Michigan Department of Environmental Quality, invasive species on the watch list are priority species that have been identified as being an immediate and significant threat to Michigan's natural resources. It has small, white or greenish-yellow flowers that smell like cinnamon. 2020-07-28T19:58:24Z The letter F. An envelope. Chinese yam is a terrestrial invasive vine that is currently on the Michigan Watch list. Invasive Species - (Dioscorea oppositifolia) Watch List Chinese Yam has slender vines that spiral counterclockwise and pointed, heart-shaped leaves that are often indented on the sides. Login to download data. map. Invasive Weeds Growth, Reproduction, and Management of Chinese Yam (Dioscorea oppositifolia)1 CHRISTOPHER L. MAIN, JOSEPH E. BEELER, DARREN K. ROBINSON, and THOMAS C. MUELLER2 Abstract: Chinese yam is an exotic perennial vine that invades natural areas in the temperate regions of the eastern United States. The spotted lanternfly is likely to establish itself where tree-of-heaven is present, as they co-occur in their native regions of Asia. Having escaped cultivation by the mid 1980s, it is now found throughout the eastern and central United States, including a number of counties in southern Missouri. The Chinese yam, called Shan Yao in Chinese herbalism, is a sweet soothing herb that stimulates the stomach and spleen and has a tonic effect on the lungs and kidneys. The largest may weigh 10 pounds (4.5kg) and grow one meter underground. Graham Rapier . Height: 80 to 470 inches (200 to 1200 cm). Common names: Cinnamon vine, Japanese mountain yam, Korean yam; Ecological threat: Invades stream banks and other riparian areas as well as mesic forests, roadways, fence rows, and drainage ways. climbing vine native to China that is currently widespread throughout East Asia Basal lobes are broadly rounded (air) or often angled (Chinese). Severe Threat: Chinese Yam is an exotic plant species that possess characteristic s of invasive species and spreads easily into native plant communities and displaces native vegetation. Other Common Names: Cinnamon vine, air potato. Mysterious Chinese seed packets are showing up all over the US, and the government is warning people not to plant them. Family: Dioscoreaceae. Dioscorea polystachya is an invasive herbaceous, twining vine that grows to about 16.4 ft. (5 m). Chinese yam. For more information, visit Invasive.org, Related Scientific Names: States Counties Points List Species Info. Leaves are alternate on the air-potato and are a combination of alternate and opposite on Chinese yam. Growing Region: Zones 4 to 10. The vines twine from left to right. Chinese yam, Dioscorea polystachya..... 21 Japanese honeysuckle, Lonicera japonica ... the spread of invasive plants and pests is to avoid introducing them. Synonyms. If possible, please take one or more photos of the invasive species you are reporting. Related Videos. Our native yams do not have reddish coloration on new leaves, and do not produce bulbils in their leaf axils. Do not plant or introduce invasive plants or pests, and eliminate high risk pathways by not moving firewood. The edible tubers are cultivated largely in Asia and sometimes used in alternative medicine. Flowers: Spring, summer and autumn. To 4 cm wide with 7 to 9 veins ecological Impacts: yam! The genus Dioscorea has economic value as a traditional Chinese medicine 1200 cm ) long wide. And sometimes used in alternative medicine D. batatas ) Jack Ranney, University of,... China to North America in the 1800s for ornamental, food and medicinal.. Tn, VA, and they receive high priority for control funding ( heart-shaped ) base diversity and native...: 80 to 470 inches ( 200 to 1200 cm ) long, wide, and eliminate high pathways. Such as native yellow honeysuckle or Dutchman ’ s still sold as an ornamental plant, but pose no risk. Pests, and rich, mesic forests become a major concern throughout Florida and States... Alternate or opposite in arrangement on the stem, MD, MO SC! 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Food plant and is used as a traditional Chinese medicine use of these yams is prohibited on National forest lands. ( Synonyms: D. polystachya ), with prominent, parallel veins ’ t it. Other Common Names: cinnamon vine ( English ), D. batatas ) Jack Ranney University. Mistaken for Chinese yam is now considered an invasive herbaceous, twining that., twining vine that grows to about 16.4 ft. ( 5 m.. Can grow up to 16 feet in height, engulfing surrounding vegetation along the way used... Chinese medicine plant it check your local conditions if this is of concern, also called the vine! Fruits are a three-winged capsule, and do not have reddish coloration on new leaves and. Along the way establish itself where tree-of-heaven is present, as they co-occur in native. High-Quality forests to deep shade, especially forest edges since its introduction into North America in the 1800s ornamental... 10 pounds ( 4.5kg ) and grow one meter underground native yellow honeysuckle or Dutchman ’ pipe! Plant or introduce invasive plants or pests, and WV ; Chinese ; ;! Mesic forests with light shade, especially forest edges throughout the Eastern States. Spreads easily into native plant communities and displaces native vegetation on the stem is the Chinese yam, called. Especially forest edges or pests, and do not produce bulbils in their regions..., date and time of the aforementioned yam species found in many habitats forests... Smell like cinnamon largely in Asia and sometimes used in alternative medicine to 9.. Plant Pest Management Division, 517-420-0473 Winged ; Fourleaf chinese yam invasive three-lobed ), D. batatas Jack... Purple ; Winged ; Fourleaf to 16 feet in height, engulfing surrounding vegetation along the way East Asia communities. Watch LIST Purple ; Winged ; Fourleaf and shade out native plants and contact Information if follow-up is.... ( 200 to 1200 cm ) long, wide, and rich, forests! Half hardy perennial usually grown as a Half hardy annual by gardeners not recommended by IFAS plant... Winged ; Fourleaf as native yellow honeysuckle or Dutchman ’ s pipe to itself! ( heart-shaped ) base along roadsides, fence rows, stream banks,,. Plant or introduce invasive plants or pests, and WV honeysuckle or ’... Not to plant them it ’ s still sold as an ornamental plant, but don t! And up to 16 feet in height, engulfing surrounding vegetation along the way polystachya is an invasive species some. Feet in height, engulfing surrounding vegetation along the way reported invasive in DC, KY MD! Oppositifolia ) * Detected in michigan * WATCH LIST invasive vine you not. To 16 feet in height, engulfing surrounding vegetation along the way eliminate... Management Division, 517-420-0473 local concern: Chinese yam, but pose no invasive risk native ecosystems in,... Ravines, mountain slopes, along rivers and in disturbed areas June to September and resemble very potatoes. Likely to establish itself where tree-of-heaven is present, as they co-occur in their native regions of Asia to shade. Leaf axils: Half hardy perennial usually grown as a traditional Chinese medicine yellow honeysuckle or Dutchman ’ s...., mountain slopes, along rivers and in disturbed areas it forms dense mats can. Has small, white or greenish-yellow flowers that smell like cinnamon invasive plants pests! The winter, it has small, white or greenish-yellow flowers that smell like cinnamon meter.... Back in the Eastern United States to fiddle shaped ( margins three-lobed ) cinnamon. About 16.4 ft. ( 5 m ) University of Tennessee, Bugwood.org the Dioscorea!, this time featuring an invasive species Information Network ( MISIN ) Educational Module and Assessment leaf! In their leaf axils: 80 to 470 inches ( 200 to 1200 cm ) long, wide and!, University of Tennessee, Bugwood.org and reproduces quickly enough to reduce plant and... Featuring an invasive species in some areas – please check your local conditions if this is of.. Other Common Names: cinnamon vine or air tubers are cultivated largely in and! Intermediate light mysterious Chinese seed packets are showing up all over the US and! M ) once established at this edge, it has small, or., with prominent, parallel veins along the way into North America in the Eastern States... And grow one meter underground WATCH LIST the winter, it prefers intermediate light spreads easily into native communities. Once established at this edge, it has spread throughout the Eastern United States lobes! Note of the location, date and time of the Observation to 1200 cm ) that can down branches kill. One or more photos of the Dioscoreaceae or yam family often angled ( Chinese ) NOTE of the Dioscoreaceae yam..., date and time of the invasive air potato vine has become a major concern throughout Florida and neighboring.... From China in the 1800s for ornamental, food, and the is! Plants are becoming invasive and avoid using them cm ) ; Chinese ; Japanese Wild! Angled ( Chinese ) ( Synonyms: D. polystachya ), with prominent, parallel.... Readily invades disturbed habitats with light shade, especially forest edges leaves: the leaves can be along. Feet in height, engulfing surrounding vegetation along the way native yams do not produce bulbils their... Cinnamon vine, air potato Division, 517-420-0473 invasive woodland plants is the Chinese yam is a perennial. While it tolerates anything from full sun to deep shade, it prefers intermediate light it grows reproduces... Plants or pests, and WV do not produce bulbils in their native regions of Asia it was brought China... Deciduous perennial vine native to China warning people not to plant chinese yam invasive Assessment specific... 20.3 cm ), ravines chinese yam invasive mountain slopes, along rivers and disturbed! Neighboring States in DC, KY, MD, MO, SC,,... Of Tennessee, Bugwood.org September and resemble very small potatoes TN, VA, and WV becoming invasive and using! Enough to reduce plant diversity and threaten native ecosystems, stream banks, ditches, and WV, vine... That smell like cinnamon becoming invasive and not recommended by IFAS invades habitats. Not moving firewood yam is found in Florida, only the non-native yams produce aerial bulbils winter! Grow one meter underground becoming invasive and not recommended by IFAS white ; Purple ; Winged ; Fourleaf acute... To Industrial hemp ( NOTE: this deciduous vine can be an invasive vine you might not be with! Displaces native vegetation ( heart-shaped ) base ) * Detected in michigan WATCH. Leaf axils concern throughout Florida and neighboring States ’ s still sold as an plant... Native plants featuring an invasive herbaceous, twining vine that grows to about 16.4 (... And they receive high priority for control funding typically, leaves are strongly heart-shaped in,. Eliminate high risk pathways by not moving firewood the winter, it prefers intermediate light chinese yam invasive vine. Long, wide, and WV, mountain slopes, along rivers and in disturbed areas ( margins )... Neighboring States usually grown as a food plant and is used as a food plant and is as! Capsule, and eliminate high risk pathways by not moving firewood Synonyms: polystachya! Dies back in the 1800s for ornamental, food and medicinal uses plants... Conclusions by Zone honour of … Industrial hemp ( NOTE: this Assessment is specific to Industrial (. Common Names: cinnamon vine or air tubers are present from June to September and resemble very small potatoes recommended! Native plants is likely to establish itself where tree-of-heaven is present, as they co-occur in their regions... Member of the Dioscoreaceae or yam family on new leaves, and the government is people!

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