Suzanne's Mom's Blog

Photo: North Carolina Arboretum
Plant physiologist Joe-Ann McCoy extracts seeds from black cohosh collected in western North Carolina.

A plant physiologist, worried about the future effects of global warming on biodiversity in Appalachia, is not only preserving seeds but working to attract preservation-based economic development. It would be almost like getting a sponsor for one of the plants there, a plant whose roots are used in popular herbal remedies.

At Yale Environment 360, Nancy Averett writes, “When she can spare the time — away from the grant applications, journal articles, and economic reports strewn across her desk — plant physiologist Joe-Ann McCoy laces up her hiking boots and heads to the Pisgah National Forest in western North Carolina.

“Dodging copperheads and black bears, she winds her way deep into the forest, her eyes scanning the lush understory for black cohosh, a native plant whose roots have been used in herbal remedies for centuries, primarily to treat symptoms related to menopause. When she spots her quarry, McCoy gently pulls the plant’s seed pods — tiny brown orbs that rattle when shaken — off the stem and slips them into a paper envelope.

“The seeds inside those pods — which will be cleaned, vacuum-packed, and then stored in a freezer at -20 degrees Fahrenheit — give McCoy hope. As the director of the North Carolina Arboretum’s Germplasm Repository, her job is to preserve native seeds in this highly biodiverse area in southern Appalachia before climate change makes it impossible for some native vegetation to survive there.

“But the black cohosh holds another promise, as well. The plant’s roots are used in top-selling herbal remedies, and, if someone could succeed in growing black cohosh as a crop and manufacturing supplements here [it] could help drive economic development in this job-scarce region. …

“North Carolina [is] special in terms of biodiversity. Studies have documented more than 4,000 species of plants, 2,000 species of fungi, and 500 species of mosses and lichens in the region. Unlike much of the U.S. East Coast, during the last three ice ages the ground in this region did not freeze, which means the plants here have a much longer genetic history and more diversity than in other areas.

‘If I had to pick one place in the entire U.S. for this project,’ McCoy says, ‘it would be here. This is the ultimate spot.’ …

“When she first came to the arboretum, she focused on black cohosh and creating a robust seed collection from the plant’s entire geographic range — she has 22 different strains — and then growing plants from each strain so she would have enough seeds to back up her collection in three different repositories. These include two federal storage sites — in Ames, Iowa and Fort Collins, Colo. — plus the Svalbard Global Seed Vault in Norway.”

After cataloging the seeds, McCoy turns her attention to the economic possibilities. Read here about her work with investors. The Yale article also describes her ginseng efforts and her assistance to Cherokees who value plants used in traditional medicine.