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Plant Sciences

Butler University

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Invasive plants

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First Report Of Yellow-Flowered Teasel, Dipsacus Strigosus Willd. Ex Roem. & Schult. (Dipsacaceae) In Indiana, A North American Record, Rebecca W. Dolan Jan 2021

First Report Of Yellow-Flowered Teasel, Dipsacus Strigosus Willd. Ex Roem. & Schult. (Dipsacaceae) In Indiana, A North American Record, Rebecca W. Dolan

Scholarship and Professional Work - LAS

This paper reports the presence of Dipsacus strigosus Willd. ex Roem. & Schult. in Indiana. The species, native to western Asia, is naturalized in several locations in Europe. This is the first documented occurrence in North America. The new record was collected along a recently constructed bike path in a moist wooded area of the Butler University campus in Indianapolis, Indiana, USA. Like the two other species of the genus known in the Indiana, D. strigosus is likely to be invasive, so efforts will be made to eradicate this population. The plant should be monitored and looked for in other …


Invasive Species In An Urban Flora: History And Current Status In Indianapolis, Indiana, Rebecca W. Dolan Jan 2016

Invasive Species In An Urban Flora: History And Current Status In Indianapolis, Indiana, Rebecca W. Dolan

Scholarship and Professional Work - LAS

Invasive plant species are widely appreciated to cause significant ecologic and economic damage in agricultural fields and in natural areas. The presence and impact of invasives in cities is less well documented. This paper characterizes invasive plants in Indianapolis, Indiana. Based on historical records and contemporary accounts, 69 of the 120 species on the official Indiana state list are reported for the city. Most of these plants are native to Asia or Eurasia, with escape from cultivation as the most common mode of introduction. Most have been in the flora of Indianapolis for some time. Eighty percent of Indianapolis’ invasive …