In Britain, recorded habitats of H. umbellatum include boundary walls, the walls of old buildings and ruins, thatched roofs, and open ground in a field. Lowland.
This species was recorded in Britain between 1765 and 1887 in Norwich (E. Norfolk), between 1773 and 1889 at several sites in Suffolk, and between 1813 and 1865 on Clydeside (Dunbarton). It was discovered in Surrey on ruins and in a nearby field in 1905, but was last recorded there in 1930. Although often thought to be native in England, it has not been recorded from semi-natural habitats and is treated here as an alien.
A Eurosiberian Southern-temperate species; widely naturalised outside its native range.
There are no images in this gallery.
Atlas text references
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1983)
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
1982. Simpson's Flora of Suffolk.