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Document Type

Research

Keywords

Pennisetum petiolare, Gramineae, pseudopetiole, weed seed contaminant

Abstract

Pennisetum petiolare, a grass native to the Sudan and Ethiopia and never previously reported from North America, occurred in a lawn in Ames, Iowa. The source of the seed was contaminated Niger thistle (Guizotia abyssinica) seed used in a bird feeder directly above the location of the plant. The occurrence of at least 15 other seeds or fruits as contaminants in the sample indicates that Niger thistle seed may serve as a medium for the introduction of weed seed into the United States.

Publication Date

March 1987

Journal Title

Proceedings of the Iowa Academy of Science

Volume

94

Issue

1

First Page

20

Last Page

21

Copyright

© Copyright 1987 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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