Alliaria petiolata
Ecology
A biennial or monocarpic herb, found in a wide range of habitats including disturbed woodland, woodland edges and clearings, shaded hedge banks, river-banks, the base of walls, road verges, waste ground, farmyards and gardens. It grows especially well on relatively fertile, moist soils, but avoids only the most acidic sites. Generally lowland, but reaching 535 m S. of Garsdale Head (N.W. Yorks.).
Status
Trends
No change is apparent in the distribution of this species since the 1962 Atlas.
World Distribution
European Temperate element; also in C. Asia and widely naturalised outside its native range.
Broad Habitats
Light (Ellenberg): 5
Moisture (Ellenberg): 6
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 8
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.6
July Mean Temperature (Celsius): 15.1
Annual Precipitation (mm): 935
Height (cm): 120
Perennation - primary
Life Form - primary
Woodiness
Clonality - primary
Count of 10km squares in Great Britain: 1990
Count of 10km squares in Ireland: 367
Count of 10km squares in the Channel Isles: 9
Atlas Change Index: 0.03
Weighted Changed Factor: -4
Weighted Change Factor Confidence (90%)
JNCC Designations
Atlas text references
Atlas (50d)
.
1996. Aspects of the ecology of an invasive plant, garlic mustard (Alliaria petiolata), in Central Illinois. Restoration Ecology. 4(2):181-191.
.
1979. The biology of Canadian weeds. 35. Alliaria petiolata (M. Bieb) Cavara and Grande. Canadian Journal of Plant Science. 59:217-229.
.
1988. Comparative Plant Ecology.
.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1994)
.
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
.
1991. Crucifers of Great Britain and Ireland. Botanical Society of the British Isles Handbook no. 6.
Comment on Clonality