Chinese Yam Dioscorea polystachya TurczaninowNon-native  -  Invasive    Synonyms: Cinnamon vine, Dioscorea batatas, Dioscorea oppositifolia, Potato Vine.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Liliales   >   Family Dioscoreaceae   >   Genus Dioscorea   

Status:

Introduced from China.

Description:

Flowers cinnamon scented. Stems commonly bear small tubers in leaf axils, hence the common name Potato Vine. These tubers are vegetative propagules.

Where to find:

Grows in disturbed forests, especially in mesic uplands and bottomlands, in old fields, along roadsides, and around old homesites.

There are 52 records in the project database.

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Chinese Yam growing in Kent Co., Maryland (9/6/2013). Photo by Jim Stasz. (MBP list)

Chinese Yam in Prince George's Co., Maryland (7/15/2014). Photo by Fritz Flohr Reynolds. (MBP list)

Chinese Yam in Dorchester Co., Maryland (7/31/2016). Photo by Wayne Longbottom. (MBP list)

Chinese Yam growing in Allegany Co., Maryland (6/20/2015). Photo by Kimberly Booth. (MBP list)

Chinese Yam (underside) in Harford Co., Maryland (7/1/2017). Photo by Bill Hubick. (MBP list)

Chinese Yam at Severn Run NEA in Anne Arundel Co., Maryland (8/29/2017). Photo by Bill Hubick. (MBP list)

Chinese Yam in Frederick Co., Maryland (10/10/2016). Photo by Wayne Longbottom. (MBP list)

Chinese Yam in Prince George's Co., Maryland (7/1/2016). Photo by Bill Harms. (MBP list)

Chinese Yam in Harford Co., Maryland (9/4/2013). Photo by Jim Stasz. (MBP list)

Chinese Yam in Dorchester Co., Maryland (7/22/2018). Photo by Bill Hubick. (MBP list)

Chinese Yam in Caroline Co., Maryland (10/11/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)

Chinese Yam in Kent Co., Maryland (6/19/2017). Photo by Wayne Longbottom. (MBP list)

Chinese Yam in Caroline Co., Maryland (10/11/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)

Chinese Yam in Prince George's Co., Maryland (10/7/2017). Photo by Bill Hubick. (MBP list)

Chinese Yam in Washington Co., Maryland (7/29/2018). (c) Mark Etheridge, some rights reserved (CC BY-NC). Photo by Mark Etheridge. (MBP list)

Chinese Yam in Harford Co., Maryland (9/27/2020). (c) tomfeild, some rights reserved (CC BY-NC). Photo by Tom Feild. (MBP list)

Chinese Yam in Anne Arundel Co., Maryland (9/27/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)


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