The Common Poppy, also called the Corn Poppy, is one of the most recognisable flowers of disturbed ground and arable landscapes. Its brilliant scarlet flowers can appear suddenly where soil has been cultivated or disturbed, sometimes producing spectacular displays from seeds that have remained dormant in the soil.
It belongs to Papaveraceae, the poppy family. Common Poppy is an especially useful plant for learning the classic poppy flower structure: two sepals, four petals, numerous stamens and a seed-filled capsule.
Identification
- An annual plant, often 30–80 cm tall.
- Stems and flower stalks are covered with coarse, spreading hairs.
- Leaves are grey-green to green, hairy and deeply lobed or toothed.
- The upper leaves are attached directly to the stem, while lower leaves are usually stalked.
- Flower buds nod downwards before opening.
- Open flowers have four large, thin, papery scarlet-red petals, often with a dark blotch near the base.
- Numerous dark stamens surround the central ovary.
- The mature fruit is a rounded capsule, with a flat disc on top.
The combination of spreading stem hairs and a short, rounded capsule is particularly useful when separating Common Poppy from some similar red poppies.
Flower structure
A Common Poppy bud is enclosed by two hairy sepals. These protect the developing flower but fall away as the bloom opens, so an open poppy appears to have no sepals at all.
There are four broad petals. They are tightly crumpled inside the bud and unfold into a delicate, tissue-paper-like flower. A dark patch is often present at the base of each petal, although it may be faint or absent.
The centre contains numerous stamens, each with a slender filament and dark anther. In the middle sits the ovary, topped directly by a broad stigmatic disc with radiating lines; there is no obvious elongated style.
The ovary is superior, meaning that the petals, sepals and stamens are attached below it. After fertilisation it develops into the familiar seed capsule.
Leaves, stems and latex
The leaves are deeply cut and irregularly toothed, with coarse hairs. Lower leaves are usually stalked, while upper leaves are often sessile and arranged alternately along the stem.
The stems are slender, upright and bristly. If damaged, the plant produces white latex, a characteristic found in many members of Papaveraceae.
Before flowering, the hairy bud normally hangs downwards. As the flower is ready to open the stalk straightens, lifting the bloom upright.
Fruit and seeds
The fruit is a smooth, rounded capsule. At its top is a flat disc made from the persistent stigmatic structure.
When the capsule ripens, small pores open immediately beneath this disc. Wind or movement shakes the tiny seeds out through the pores, rather like seeds being sprinkled from a pepper pot.
The ability of the seeds to persist in disturbed soil helps explain why Common Poppies can suddenly reappear after ploughing, excavation or other ground disturbance.
Habitat
Common Poppy is strongly associated with open, disturbed ground. Typical places include:
- arable field margins
- road verges
- waste and disturbed ground
- newly cultivated or seeded ground
- gardens and urban land
- open grassland where the soil has been disturbed
It was once a very familiar cornfield weed, but changes in intensive agriculture greatly reduced wild arable populations. It is now also frequently seen in deliberately sown wildflower areas.
Flowering period
The main flowering period is June to August, although timing varies with weather and disturbance. Individual flowers are short-lived, but a plant can continue producing buds over a much longer period.
Similar species
Long-headed Poppy (Papaver dubium) also has red flowers, but its mature capsule is noticeably longer and narrower. Its stem hairs also tend to lie closer to the stem rather than spreading strongly outwards.
Rough Poppy (Papaver hybridum) has a very bristly, rough seed capsule rather than the smooth capsule of Common Poppy.
Opium Poppy (Papaver somniferum) is a larger, more robust plant, usually with smooth bluish-green leaves that clasp the stem and a much larger rounded capsule. It commonly occurs as a garden escape.
Use several features together when identifying poppies, particularly the capsule shape, stem hairs and leaf form.
Folklore & history
Few wildflowers carry such a strong modern cultural meaning as the Common Poppy. Its association with remembrance grew from the great displays of poppies that appeared on disturbed ground around the battlefields of the First World War. The flower subsequently became an enduring symbol of remembrance for those killed in war.
Its symbolism is much older than the twentieth century. Poppies were associated with crops, fertility, sleep and death in several ancient cultures, and the striking red flowers have long attracted attention wherever they appeared among grain fields.
Older English names include Corn Poppy, Field Poppy and Corn Rose, reflecting its long association with cultivated fields.
Wildlife
Common Poppy flowers do not offer nectar, but they produce abundant pollen. Bees and other pollen-collecting insects visit the flowers and can often be seen working around the dense ring of anthers.
The plant also contributes to the diversity of arable-field and disturbed-ground vegetation, alongside other traditional cornfield flowers such as Cornflower and Corncockle.