PRIMULA VULGARIS

 

Primula vulgaris. Factal created by Lynn. Used Fractal Explorer.

    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 (genus Oenothera).

Primula vulgaris is a perennial growing 10–30 cm tall, with a basal rosette of leaves which are more-or-less evergreen in favoured habitats. It flowers in early spring in the northern hemisphere (February–April) on slopes and meadows.

The leaves are 5–25 cm long and 2–6 cm broad, often heavily wrinkled, with an irregularly crenate to dentate margin. The leaf blade is gradually attenuated towards the base and unevenly toothed. The single stem, extremely short, is hidden in the centre of the leaf rosette. The delicately scented flowers are 2–4 cm in diameter, borne singly on short slender stems.

The flowers are typically pale yellow, though white or pink forms are often seen in nature. The flowers are actinomorphic with a superior ovary which later forms a capsule opening by valves to release the small black seeds. The flowers are hermaphrodite but heterostylous; individual plants bear either pin flowers (longuistylous flower: with the capita of the style prominent) or thrum flowers (brevistylous flower: with the stamens prominent). Fertilisation can only take place between pin and thrum flowers. Pin-to-pin and thrum-to-thrum pollination is ineffective.

In appropriate conditions, P. vulgaris can cover the ground in open woods and shaded hedgerows. It is found mainly by streams, under bushes, in orchards and clear, moist deciduous forests. Occasionally it also appears in meadows. In Central Europe plants thrive best on nutrient-rich, but lime-poor, humus-rich, loose and often stony loam soils in winter-mild situations. In more populated areas it has sometimes suffered from over-collection and theft so that few natural displays of primroses in abundance can now be found. However it is common on motorway verges and railway embankments where human intervention is restricted. To prevent excessive damage to the species, picking of primroses or the removal of primrose plants from the wild is illegal in many countries, e.g. the UK Wildlife and Countryside Act 1981 (Section 13, part 1b).