NPSpecies

Data Source: NatureServe. 2007. Vascular Plant Inventory of Obed Wild and Scenic River. Draft Report Submitted to Appalachian Highlands I&M Network, NPS.

Data Source: NatureServe. 2007. Vascular Plant Inventory of Obed Wild and Scenic River. Draft Report Submitted to NPS, Appalachian Highlands I&M Network. Legacy NPSpecies information may no longer be applicable, please remove if it is not applicable. In legacy NPSpecies Cultivation value was Not cultivated with comment: Data Source: NatureServe. 2007. Vascular Plant Inventory of Obed Wild and Scenic River. Draft Report Submitted to NPS, Appalachian Highlands I&M Network. In legacy NPSpecies Weedy value was Yes In legacy NPSpecies Pest value was Yes with comment: TN EPPC RANK = SEVERE THREAT; NatureServe I Rank = High/Low. Dioscorea oppositifolia alters community structure and composition by overtopping existing vegetation layers and shading species in lower layers (Tu 2002). It is reported as invasive in four states (Miller et al. 2002). A unique propagule, known as a "bulbil," is dispersed by water currents (Tu 2002). D. oppositifolia establishes in distrubed areas and spreads from there into undisturbed sites (Tu 2002). This species resprouts after cutting and vigorously reproduces asexually, but it can be controlled with herbicide treatments (Tu 2002) (NatureServe 2007).

Data Source: NatureServe. 2007. Vascular Plant Inventory of Obed Wild and Scenic River. Draft Report Submitted to NPS, Appalachian Highlands I&M Network.

Park Species Detail: BONAP Author = L.; Reference = TN10/11, Park Species Data Source: Schmalzer, P.A. and H.R. DeSelm, 1982; BONAP County Database