Oenothera biennis
Onagre
Common Evening Primrose
Additional information
| Plant family | |
|---|---|
| Area | Provence Verte |
| Flower colour | yellow |
| Flower size | 30-50 mm |
| Flowering months | July, August |
| Leaf type | Lanceolate |
| Height | up to 1.5 m |
Description
Originally from North America, introduced to the Padua Botanical Garden (Italy) in 1619. In the first year a rosette of basal leaves appears, in the second year a red-specked stem arises from the rosette of leaves.
Flowers
The 4-petalled flowers are borne on long spikes. The petals emit a phosphorescent light and are night-scented.
Leaves
Lanceolate leaf is lance-shaped: long and widest in the middle. Long, wider in the middle, pointed, alternate on the stem, 5-20 cm.
Fruits Seeds
Capsule: tubular, tapering, 25-35 mm.
Edible
Whole plant.
Medical
Seeds: oil extracted from the seeds contains gamma-linoleic acid that assists in the production of hormone-like substances used for premenstrual and menopausal problems.
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