alexa The Accuracy of Plant Identification in a Longitudinal
ISSN: 2327-5162

Alternative & Integrative Medicine
Open Access

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Research Article

The Accuracy of Plant Identification in a Longitudinal Ethno Botanical Project in Coastal Ecuador

David S. Kiefer1*, Lauren Moscoe2, Jack Buchanan3 and Catherine Woodward4

1Department of Family Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, USA

2Department of Botany, University of Wisconsin-Madison, USA

3Nelson Institute for Environmental Studies, University of Wisconsin-Madison, USA

4Ceiba Foundation for Tropical Conservation, USA

*Corresponding Author:
Kiefer DS
Clinical Assistant Professor
Department of Family Medicine
School of Medicine and Public Health
University of Wisconsin-Madison, USA
Tel: 0112065508566
E-mail: [email protected]

Received date November 05, 2014; Accepted date February 18, 2015;; Published date February 22, 2015

Citation: Kiefer DS, Moscoe L, Buchanan J, Woodward C (2015) The Accuracy of Plant Identification in a Longitudinal Ethno Botanical Project in Coastal Ecuador. Altern Integr Med 4:186. doi:10.4172/2327-5162.1000186

Copyright: © 2015: Kiefer DS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background: Preserving traditional environmental knowledge about herbal medicine in the face of rapid environmental, economic and cultural change depends in part on the identification of traditionally used medicinal plants to their Latin binomial. When financial, legal, and/or time constraints prevent the collection of voucher specimens or the use of advanced molecular technologies, arguably the “gold standards” for plant identification, alternative methods such as photography and morphological descriptions may still be able to assist identification. There are unknowns about the relative accuracies of these different techniques. This paper compares the efficacy of several methods to correctly identify plants across five separate site visits in the province of Manabí, Ecuador. Methods: Plants that were identified to genus-, and species-level accuracy during each of the five site visits were totaled, and the type of data (expert consultation, written, photographic, and morphological) leading to the identification noted. Percentage accuracy was calculated as the number of unambiguous identifications to Latin binomial divided by the total number of common plant names recorded for each site visit. Results: Ninety-six common plant names were recorded across the five site visits, while each individual visit yielded information about 26-54 plants, reflecting significant overlap. In addition to interview data, site visit 4 uniquely collected additional photographic (34 plants) and morphological data (12 plants). Photographs were more effective in aiding identification to both genus (12) and species (4) than morphological data (4 genus and 0 species identifications). Percentage accuracy for the first four site visits ranged from 27-36%; site visit 5 yielded 91% accuracy, but only when considering a limited subset of the plants. Conclusions: Photographic, and morphological data can aid identification of medicinal plant species to Latin binomial when time, money and/or collection permits are lacking, but should not be considered reliable substitutes for plant voucher specimens or advanced molecular technologies.

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