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Confirm Cornfield Knotgrass please Confirm Cornfield Knotgrass please

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Old 30-07-2011, 09:28 PM
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Confirm Cornfield Knotgrass please
Cornfield Knotgrass?

thank you
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Old 30-07-2011, 10:10 PM
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Re: Confirm Cornfield Knotgrass please
Steve, it's Knotgrass - Polygonum aviculare which is very variable and narrow-leaved forms are often mistaken for Cornfield Knotgrass which is only very locally common.
Cornfield Knotgrass - P. rurivagum has very narrow pointed leaves and distinctive longer red-brown sheaths. Only found on arable limy fields.
Dorts.
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Old 30-07-2011, 10:50 PM
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Re: Confirm Cornfield Knotgrass please
Thank you Dorts for your full explanation ,,it helps me allot.
all the best Steve
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