Primula is a genus of herbaceous flowering plants in the family Primulaceae. They include the primrose, a familiar wildflower of banks and verges. Other common species are P. auricula (auricula), P. veris (cowslip), and P. elatior (oxlip). These species and many others are valued for their ornamental flowers. They have been extensively cultivated and hybridised. Primula are native to the temperate Northern Hemisphere, south into tropical mountains in Ethiopia, Indonesia, and New Guinea, and in temperate southern South America. Almost half of the known species are from the Himalayas.
Primula veris, the cowslip, common cowslip, or cowslip primrose, is a herbaceous perennial flowering plant in the primrose family Primulaceae. The species is native throughout most of temperate Europe and western Asia, and although absent from more northerly areas including much of northwest Scotland, it reappears in northernmost Sutherland and Orkney and in Scandinavia. This species frequently hybridizes with other Primulas such as the common primrose Primula vulgaris to form false oxlip which is often confused with true oxlip, a much rarer plant.
The name candelabra primula or candelabra primrose refers to species and cultivars of Primula section Proliferae, originating mainly in the far east. They are characterised by whorls of flowers formed in circles at intervals around strong vertical stems, in many brilliant colours, flowering over a long period from Spring to Summer. They are popular ornamental subjects for moist, heavy, neutral or acidic soil. They associate well with other plants, such as rhododendrons, which enjoy similar conditions.
Primula bulleyana is a species of flowering plant in the family Primulaceae, native to hillsides in China.
Primula vulgaris, the common primrose, is a species of flowering plant in the family Primulaceae, native to western and southern Europe, northwest Africa, and parts of southwest Asia. The common name is primrose, or occasionally common primrose or English primrose to distinguish it from other Primula species also called primroses. None of these are closely related to the evening primroses.
Primula alpicola, the moonlight primrose, is a species of Primula native to Bhutan and southeastern Tibet, where it grows in vast numbers along the Tsangpo valley alongside Primula florindae. Their habitats hardly ever overlap; P. florindae prefers wetter soils close to rivers, giving way to P. alpicola on drier sites.
Primula elatior, the oxlip, is a species of flowering plant in the family Primulaceae, native to nutrient-poor and calcium-rich damp woods and meadows throughout Europe, with northern borders in Denmark and southern parts of Sweden, eastwards to the Altai Mountains and on the Kola Peninsula in Russia, and westwards in the British Isles.
Primula meadia, the shooting star or eastern shooting star, is a species of flowering plant in the primrose family Primulaceae. It is native to the eastern United States and Canada, spanning north from Manitoba and New York, south to Texas and Florida.
Primula sieboldii, the Japanese primrose, is a species of primrose that is endemic to East Asia. The species goes by common names such as Siebold's primrose, cherry blossom primrose, Japanese woodland primroseSnowflake, Geisha girl, Madam butterfly and the Japanese primrose which also applies to the related species Primula japonica.
Primula rosea, the rosy primrose, is a flowering plant species in the genus Primula, native to the Himalayas. Growing to 50 cm (20 in) tall, it is a hardy herbaceous perennial with red-tinged leaves and clumps of rich pink flowers in spring.
Primula japonica, the Japanese primrose, Japanese cowslip, Queen of primroses, or valley red, is a species of flowering plant in the family Primulaceae, native to Japan. The common name Japanese primrose also applies to the related species Primula sieboldii.
Primula marginata, the silver-edged primrose, is a species of flowering plant in the family Primulaceae, native to the south western Alps of France and Italy.
Primula pulverulenta, the mealy primrose or mealy cowslip, is a species of flowering plant in the family Primulaceae, native to damp habitats in China. It is a herbaceous perennial growing to 100 cm (39 in) tall by 60 cm (24 in) broad, with strong stems of deep pink flowers arising from basal rosettes of leaves in early summer. The flowers are grouped at intervals along the stem in a tiered formation, hence the common name "candelabra primula" which is often applied to this and other species with a similar arrangement.
Primula prolifera, the candelabra primrose or glory of the bog, is a flowering plant in the family Primulaceae. Its botanical name is currently unresolved.
Primula vialii, Vial's primrose, is a species of flowering plant in the family Primulaceae, originating from wet meadows, or near water in high valleys of SW Sichuan and northern Yunnan in southern China. Growing to 40 cm (16 in), it is a herbaceous perennial with erect stalks of flowers growing from basal rosettes of leaves. The flowers initially appear as narrow green spikes turning red, then opening pink from the base upwards, thus giving a striking bicoloured appearance.
Primula frondosa, the leafy primrose, is a species of flowering plant in the family Primulaceae, native to the Balkans. It inhabits shady spots in a small region of the central Balkan Mountains range in Bulgaria, where it is found at altitudes from 800 to 2,200 m. Its populations are situated within the boundaries of the Central Balkan National Park and the nature reserves Sokolna, Dzhendema and Stara Reka.
Primula malacoides, called the fairy primrose or baby primrose, is a perennial species of Primula native to the Himalayas, Assam in India, Myanmar, and south-central and south east China. It has gained the Royal Horticultural Society's Award of Garden Merit.
Primula capitata, commonly known as the round-headed Himalayan primrose or Asiatic primrose is a species of flowering plant in the family Primulaceae. It is a short-lived perennial, forming semi-evergreen rosettes of 15cm pale green, mealy leaves that are finely toothed, oblong-lance-shaped or inversely lance-shaped, with white-mealy undersides. Its flowers are up to 1cm long, dark purple and tubular, with shallowly lobed petals; they are borne in racemes that form flattened spheres, held on white-mealy stems about 40cm high.
Primula chionantha, the snow-white primrose, is a species of flowering plant in the family Primulaceae, native to Tibet, Sichuan and Yunnan in China. It has gained the Royal Horticultural Society's Award of Garden Merit.
Primula kisoana, the hardy primrose or Mount Kiso primrose, is a species of flowering plant in the family Primulaceae, native to Honshu and Shikoku islands of Japan. Hardy to USDA zone 4, it does well in partly shady situations under trees and along paths. A number of cultivars with flowers of different shades of pink are available.
