Category Perennial

Rich, moist, deciduous forests, often along seepages and streams from sea level to 2000 metres. Love

Shingle beaches and sand dunes. Love

Very rare in the wild, it is found in limestone soils and rich woods near rivers. Love

Plains and dry banks, especially on sandy shores. Love

Rich woods, wooded bottoms and ravines, usually in calcareous soils. Love

Moist, marshy or inundated localities, shallow pools, ditches, rice fields, forming dense masses. Also found along roadsides at elevations from sea-level up to 1,000 metres. Love

Open woods, hedgebanks and grassland, in dry sunny places, usually on calcareous soils. Love

Shrubberies and damp places to 2400 metres in the Himalayas. Often found as a weed in wet fields. Love

Rich woods and damp clearings. Love

Fields and open woods on moist acidic soils in shady areas, growing especially well among grasses. Love

Disturbed ground. Love

Open woods and clearings Love

Not known in the wild. Love

Common and widespread in the wild, probably as an escape from cultivation. Love

Rocky mountain woods, wet meadows and riversides on foothills of the S.E. Alps in Europe. Love