Whistling Jack by the sea, Bryher, Isles of Scilly
In rough grassland
Gladiolus communis subsp. Byzantium
May to July
It is found mainly on the Isles of Scilly and in the far Southwest.
It is also occurs by the coast in parts of the South and East Anglia.
For a map see the National Biodiversity Network Gateway
It is a neophyte found in fields, hedgerows and on rough ground.
It is a relic of the Scilly bulb fields and is extensively naturalised
throughout the Scillies, where it is called Whistling Jacks.
It is only naturalised where there is little frost.
Whistling Jack is an attractive, cormous perennial, growing up
Flowers are showy and in a spike of up to 20 blooms.
Flowers are up to 5cm and funnel-shaped with 6 bright purple
Leaves are typically iris-like and up to 70cm.
It is difficult to distinguish from Eastern Gladiolus, Gladiolus
communis, which is more extensively naturalised in the Southwest.
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