Ammi majus

Ammi majus Sturm8

Ammi majus flowerhead1 NWS (15367278999)

Ammi majus leaf1 NWS (14933146884)

Neuchâtel Herbarium - Ammi majus - NEU000005508

Ammi majus is a species of flowering plant in the Apiaceae family, commonly known as bishop's weed or false queen anne's lace. It is native to the Mediterranean Basin and is widely cultivated for its ornamental value and medicinal properties.

Description

Ammi majus is an annual herb that can grow up to 1 meter in height. The plant has finely divided, feathery leaves and produces large, flat-topped clusters of small white flowers. These flower clusters, known as umbels, can be up to 15 cm in diameter. The plant blooms in the summer and is known for attracting a variety of pollinators, including bees and butterflies.

Habitat

Ammi majus thrives in well-drained soils and prefers full sun to partial shade. It is commonly found in fields, roadsides, and disturbed areas. The plant is tolerant of a range of soil types but prefers sandy or loamy soils.

Cultivation

Ammi majus is often grown as an ornamental plant in gardens. It is valued for its delicate, lacy flowers and its ability to attract beneficial insects. The plant can be propagated by seed, which should be sown in the spring after the last frost. It requires regular watering but should not be overwatered, as it is susceptible to root rot.

Medicinal Uses

Historically, Ammi majus has been used in traditional medicine. The plant contains several bioactive compounds, including furanocoumarins, which have been studied for their potential therapeutic effects. It has been used to treat various skin conditions and is known for its photosensitizing properties, which can increase the skin's sensitivity to sunlight.

Toxicity

While Ammi majus has medicinal uses, it can also be toxic if ingested in large quantities. The plant's furanocoumarins can cause skin irritation and photosensitivity, leading to conditions such as phytophotodermatitis. It is important to handle the plant with care and to avoid excessive exposure to sunlight after contact.

Related Species

Ammi majus is closely related to other species in the Ammi genus, including Ammi visnaga, which is also known for its medicinal properties. Both species share similar habitats and growth requirements.

See Also

• Apiaceae
• Ammi visnaga
• Phytophotodermatitis
• Traditional medicine