Viola hirta

Tracheophyta MagnoliopsidaViolaceaeViolaViola hirta

Ecology

A perennial herb, occurring mainly on calcareous soils, and found in short grassland or open scrub on downland, rocky slopes, limestone pavement, woodland borders and rides, and sometimes on base-flushed but more acidic riverside substrates; also on roadsides and railway banks. Generally lowland, but reaching 610 m on Long Fell (Westmorland).

Status

Native

World Distribution

Eurosiberian Temperate element.

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 7

Moisture (Ellenberg): 4

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 2

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 15.7

Annual Precipitation (mm): 795

Height (cm): 15

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Clonality - secondary

Rhizome shortly creeping

Comment on Clonality

Slow vegetative spread by branching rhizome (CPE)

Count of 10km squares in Great Britain: 964

Count of 10km squares in Ireland: 19

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.46

Weighted Changed Factor: -12

Weighted Change Factor Confidence (90%)

25

JNCC Designations

NBNSYS0000002926