Hypericum humifusum

Tracheophyta MagnoliopsidaClusiaceaeHypericumHypericum humifusum

Ecology

A short-lived perennial herb of open well-drained habitats (heaths, dry moors, open woodlands, tracksides, sometimes roadside banks) on light acidic soils; if apparently on calcareous soils, then rooting in a shallow acidic surface layer. Generally lowland, but reaching 530 m at Cat-and-Fiddle, Cheshire.

Status

Native

World Distribution

European Temperate element.

© M. Cotterill, IWNHAS

Broad Habitats

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

Light (Ellenberg): 7

Moisture (Ellenberg): 6

Reaction (Ellenberg): 4

Nitrogen (Ellenberg): 3

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 14.8

Annual Precipitation (mm): 1085

Height (cm): 10

Perennation - primary

Perennial

Life Form - primary

Chamaephyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 1732

Count of 10km squares in Ireland: 428

Count of 10km squares in the Channel Isles: 12

Atlas Change Index: -0.4

Weighted Changed Factor: 6

Weighted Change Factor Confidence (90%)

25

JNCC Designations

NBNSYS0000002964