Petasites fragrans

Tracheophyta MagnoliopsidaAsteraceaePetasitesPetasites fragrans

Ecology

This dioecious rhizomatous perennial herb is naturalised on streamsides, banks, rough ground and roadsides, where it sometimes forms large, very persistent stands. Lowland.

Status

Neophyte

World Distribution

Native of the C. Mediterranean region in Europe (Italy, Sicily, Sardinia) and of N. Africa.

© M. Cotterill, IWNHAS

Broad Habitats

Boundary and linear features (eg hedges, roadsides, walls)

Light (Ellenberg): 5

Moisture (Ellenberg): 5

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 6

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.1

July Mean Temperature (Celsius): 15.3

Annual Precipitation (mm): 941

Height (cm): 30

Perennation - primary

Perennial

Life Form - primary

Non-bulbous geophyte (rhizome, corm or tuber)

Woodiness

Herbaceous

Clonality - primary

Rhizome far-creeping

Count of 10km squares in Great Britain: 1328

Count of 10km squares in Ireland: 582

Count of 10km squares in the Channel Isles: 12

Atlas Change Index: 0.8

Weighted Changed Factor: 21

Weighted Change Factor Confidence (90%)

20

JNCC Designations

NHMSYS0000461630