A short-lived perennial, well-naturalised on sea-cliffs, shingle and other habitats by the sea, and occasionally inland where it is more obviously a garden escape. Lowland.
M. incana has been widely cultivated in Britain since at least 1596, but may have been introduced long before that date. It has been considered to be native, but it was not recorded in the wild until 1808. It is now more frequent than when mapped in the 1962 Atlas.
A Mediterranean-Atlantic species; widely naturalised outside its native range.
Light (Ellenberg): 9
Moisture (Ellenberg): 3
Reaction (Ellenberg): 8
Nitrogen (Ellenberg): 2
Salt Tolerance (Ellenberg): 3
January Mean Temperature (Celsius): 5
July Mean Temperature (Celsius): 15.9
Annual Precipitation (mm): 874
Height (cm): 80
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 107
Count of 10km squares in Ireland: 2
Count of 10km squares in the Channel Isles: 6
Atlas Change Index: 0.75
Atlas text references
1990. Flora dels Països Catalans, II. Crucíferes-Amarantàcies.
Jalas & Suominen (1994)
1991. Crucifers of Great Britain and Ireland. Botanical Society of the British Isles Handbook no. 6.