Kalmia latifolia

Kalmia latifolia, commonly known as Mountain Laurel, is a species of flowering plant in the family Ericaceae, native to the eastern United States. Its range stretches from southern Maine south to northern Florida, and west to Indiana and Louisiana.

Description

Kalmia latifolia is an evergreen shrub growing to 3–9 m tall. The leaves are 3–12 cm long and 1–4 cm wide. Its flowers are round, ranging from light pink to white, and occur in clusters. The plant blooms in May and June. Each flower has five sepals and five petals.

Habitat and distribution

Kalmia latifolia is found in a variety of habitats, including forests, pastures, and mountains, at altitudes of up to 1,200 m. It prefers acidic, well-drained soils. It is often found in association with other members of the Ericaceae family, such as Rhododendron and Azalea.

Uses

The wood of Kalmia latifolia is heavy and strong but brittle. It has been used for making utensils, tools, and in the past, for making small boats. The plant is also used in horticulture for its attractive flowers and as a ground cover in acidic soils.

Toxicity

All parts of the plant are toxic and can be fatal if ingested by humans and animals. The plant contains andromedotoxin, which can cause symptoms such as nausea, headache, slow pulse, decreased temperature, and in severe cases, can lead to coma or death.

Conservation

While Kalmia latifolia is not currently considered threatened, it is susceptible to a number of diseases and pests, including leaf spot and blight, and the Kalmia leaf miner.

See also

• List of poisonous plants
• Ericaceae
• Rhododendron

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