Poaceae: Stipeae) in Australia

The distribution and impact of South/North American stipoid grasses (Poaceae: Stipeae) in Australia.

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The distribution and impact of South/North American stipoid grasses (Poaceae: Stipeae) in Australia.

Author(s) : McLaren, D. A. ; Stajsic, V. ; Gardener, M. R. Author Affiliation : Department of Natural Resources and Environment, Keith Turnbull Research Institute, PO Box 48, Frankston, Victoria 3199, Australia. Conference paper; Journal article : Plant Protection Quarterly 1998 Vol.13 No.2 pp.62-70 Conference Title : The Nassella workshop, Victoria, Australia.

Abstract : The current and potential distribution in Australia of ten introduced South/North American stipoid grass weeds is documented. The known ecology and the impacts on agriculture and the indigenous vegetation are presented. Nassella trichotoma has significant impacts on both agriculture and the environment. N. neesiana most serious environmental weeds of grassland and grassy-woodland communities southeast Australia. N. leucotricha and especially N. hyalina are serious environmental weeds of grassland communities, particularly on the Victorian Volcanic Plains. Achnatherum caudatum and A. brachychaetum have the potential to become very serious agricultural and environmental weeds, as they possess abundant cleistogenes that promote dispersal and survival under cultivation. A. brachychaetum remains poorly known due to its similarity and confusion with A. caudatum. N. charruana poses a significant weed threat due to its invasiveness and unpalatability. N. megapotamia and Piptochaetium montevidense are poorly known species with little to no information available on their ecology and weed status in Australia. Attempts to eradicate Jarava plumosa in South Australia have proved difficult. Ten recommendations are made.

ISSN : 0815-2195 Record Number : 19982302712 Language of text : English Language of summary : English

Indexing terms for this abstract:

Organism descriptor(s) : Achnatherum, Nassella, nassella leucotricha, nassella neesiana trichotoma, Piptochaetium, piptochaetium montevidense, plants, Poaceae, Stipa brachychaeta, Stipa hyalina, Stipa papposa Descriptor(s) : agriculture, communities, dispersal, distribution, environment, geographical distribution, grasslands, impact, introduction, plant ecology, survival, vegetation, weeds Identifier(s) : achnatherum brachychaetum, achnatherum caudatum, Jarava, jarava plumosa, nassella hyalina, nassella megapotamia Geographical Location(s) : Australia, North America, South America Broader term(s) : Poaceae, Poales, commelinids, monocotyledons, angiosperms Spermatophyta, plants, eukaryotes, Nassella, Piptochaetium, Stipa, APEC countries Oceania, Commonwealth of Nations, Developed Countries, OECD Countries, America

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