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OverviewDuring surveys in 2009, we documented 23 invasive exotic plant taxa in the restored prairie at Herbert Hoover National Historic Site. The most widespread and abundant of the exotic plant species observed included sweetclover, reed canarygrass, and smooth brome. Prevalent mainly in the western half of the prairie, sweetclover was established on at least 0.8 acres. Reed canarygrass and smooth brome each covered a minimum of 1 acre. Full Product DetailsAuthor: National Park Service , National Park ServicePublisher: Createspace Independent Publishing Platform Imprint: Createspace Independent Publishing Platform Dimensions: Width: 21.60cm , Height: 0.30cm , Length: 28.00cm Weight: 0.145kg ISBN: 9781492367369ISBN 10: 1492367362 Pages: 52 Publication Date: 13 September 2013 Audience: General/trade , General Format: Paperback Publisher's Status: Active Availability: In stock We have confirmation that this item is in stock with the supplier. It will be ordered in for you and dispatched immediately. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |