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22 May 2020 The Near Extirpation and Subsequent Restoration of Asarum canadense L. (Wild Ginger) (Aristolochiaceae) in Louisiana
Albert J. Meier, Armin R. Meier, Joleen Stone, Martin Stone, Barry McPhail
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Abstract

In 1986, the only known population of Asarum canadense (Wild Ginger) in Louisiana was described. The population is located in the Tunica Hills of West Feliciana Parish, LA. On 26 June 2015, we returned to the location and found a single rhizome with 3 ramets. In an effort to rescue the Louisiana population from extirpation, we collected these ramets and artificially propagated them. Between 19 July 2017 and July 2019, we reintroduced a total of 61 ramets to the site. In addition, we found 13 ramets that had volunteered at the original population location, from which we collected 2 ramets. All of our planted clumps have survived, and these reintroduced plants have exhibited an increase in visible ramets of ∼30%. One hundred twenty-two ramets remain in propagation in Kentucky, with additional propagules in the possession of the Louisiana Natural Heritage Program. Herbivory by gastropods appears to be a major threat to the population. A pilot effort to combat this is in progress. We suggest that this small and peripheral population has conservation value for the species as a whole and should receive management effort in order to favor increased population growth rates, create additional populations, and act as a potential source of climatic adaptability for the global population.

Albert J. Meier, Armin R. Meier, Joleen Stone, Martin Stone, and Barry McPhail "The Near Extirpation and Subsequent Restoration of Asarum canadense L. (Wild Ginger) (Aristolochiaceae) in Louisiana," Southeastern Naturalist 19(2), 395-402, (22 May 2020). https://doi.org/10.1656/058.019.0220
Published: 22 May 2020
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