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Observed: 28th September 2011 By: ap3535
S159 Neighbourhood Nature - course complete
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Ripe seedheads approx 8-9cm long, rounded oblong shape; splitting to show round shiny brown seeds. Leaves long, light green, pointed, plant growing in clumps with large, warty, orange roots. Observed to bear large yellow iris-type flowers in summer. Tall, to 130+cm.

Species interactions

No interactions present.

Species with which Yellow Flag (Iris pseudacorus) interacts