Title

40. Ornamental Plant Found Spreading Aggressively: Potential Invasiveness of Dryopteris erythrosora in North America

Presenter Information

Hannah UmsteadFollow

Faculty Mentor(s)

James T. Diggs

Campus

Gainesville

Proposal Type

Poster

Subject Area

Biology

Location

Nesbitt 3110

Start Date

23-3-2018 11:00 AM

End Date

23-3-2018 12:00 PM

Description/Abstract

Dryopteris erythrosora, commonly called Autumn Fern or Japanese Shield Fern, is an exotic fern native to Japan, Korea, and China. In the summer of 2017 while collecting plants for BIOL 3329K (Identification of Vascular Flora), the author noticed a dense population of Dryopteris erythrosora in a disturbed suburban woodlot, located in Alpharetta, Georgia. A highly soriferous frond was collected from the population and later brought into the lab to be examined. The frond was identified as Dryopteris erythrosora by its five vascular bundles, deep red indusia covered sori, and its abundant dark scales. An ecological survey at the site found by the author displays an alarmingly high count of fertile fronds and new recruitment of young fronds. The data collected suggests that Dryopteris erythrosora is capable of self-replicating and maturing into well-established colonies; the species has also been reported as naturalizing in Arkansas and North Carolina, traveling by long-distance spore dispersal. The purpose of this research is to document the potential invasiveness of this plant in North America.

Keywords: horticulture, botany, fern, dryopteris, invasive, ecology, population, survey, naturalize, hybridize

Note to Conference Administrators

I was unable to submit the abstract by the deadline, and request that it may be considered it for ARC 2018.

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Mar 23rd, 11:00 AM Mar 23rd, 12:00 PM

40. Ornamental Plant Found Spreading Aggressively: Potential Invasiveness of Dryopteris erythrosora in North America

Nesbitt 3110

Dryopteris erythrosora, commonly called Autumn Fern or Japanese Shield Fern, is an exotic fern native to Japan, Korea, and China. In the summer of 2017 while collecting plants for BIOL 3329K (Identification of Vascular Flora), the author noticed a dense population of Dryopteris erythrosora in a disturbed suburban woodlot, located in Alpharetta, Georgia. A highly soriferous frond was collected from the population and later brought into the lab to be examined. The frond was identified as Dryopteris erythrosora by its five vascular bundles, deep red indusia covered sori, and its abundant dark scales. An ecological survey at the site found by the author displays an alarmingly high count of fertile fronds and new recruitment of young fronds. The data collected suggests that Dryopteris erythrosora is capable of self-replicating and maturing into well-established colonies; the species has also been reported as naturalizing in Arkansas and North Carolina, traveling by long-distance spore dispersal. The purpose of this research is to document the potential invasiveness of this plant in North America.

Keywords: horticulture, botany, fern, dryopteris, invasive, ecology, population, survey, naturalize, hybridize