Magnolia biondii

Distribution

Magnolia biondii is widely distributed in China. It is commonly found in Gansu, Henan, Hubei, Shaanxi, Sichuan provinces. It is usually found in forests in the mountains.

Habitat and ecology

Magnolia biondii is a deciduous tree that grows mainly in temperate forests in the mountains. It has a broadly conical to spreading habit.

Morphology of leaf

Magnolia biondii can grow up to 12 m. Its bark has a pale grey, smooth appearance. It produces simple leaf type with ovate shape. In general, leaf size varies and can be up to 20 cm, long and 10 cm, across. In addition, they are taper-pointed at the tip and wedge-shaped at the base with a short petiole of up to 2 cm. Furthermore, leaves are arranged in an alternative pattern. Leaves have pinnate venation. Moreover, stamens and carpels are spirally arranged.

Flowers and fruit

Flowers of Magnolia biondii are small and white and have strong fragrance associated to them. They can grow up to 8 cm. Flower parts are in sets of threes. In general, flowers have six petals and three sepals. More specifically, the petals are pink at the base and white at the top. Furthermore, flowers have cone-shaped receptacles that bear spirally arranged carpels from which styles emerge.

Stamens are cream-white in color. In addition, flowers take several years to appear. Because of the small size and long growth period, Magnolia biondii is seldom used for ornamental purposes. Magnolia biondii produce aggregate fruits that consist of numerous separate carpels of one gynoecium. The fruits form in cylindrical cluster and protrude on a stalk. Each cluster can grow up to 14 cm long. Individual fruitlets are red at first, then turn brown upon maturity.

Usage

Food

Dried flower buds and petals of Magnolia biondii are considered food in some parts of China. Fresh flower buds can be prepared by mixing with vinegar and ginger. Petals can be fried with flour batter coating.

Medicinal

The dried flower buds of Magnolia biondii are used medicinally in China and Japan. They are used to relieve coughing and nasal obstruction. Pharmacologically, five lignans including pinoresinol dimethyl ether, magnolin, epi-magnolin A, fargesin, and demethoxyaschantin have been attributed to the medicinal effect of Magnolia biondii.

Similar species

Magnolia biondii is closely related to the Japanese Willow-Leaf Magnolia, Magnolia salicifolia, which has aromatic foliage and shoots. Resemblance is also observed in Magnolia dendata. Magnolia biondii is generally distinguished by its smaller size, narrower leaves, and smaller flowers.

References

References

1. (31 August 2012). "IUCN Red List of Threatened Species: Magnolia biondii". IUCN Red List of Threatened Species.
2. Coombes, Allen. (2010). "The book of leaves : a leaf-by-leaf guide to six hundred of the world's great trees". The University of Chicago Press.
3. Hutchinson, Joan. (1973). "The family of flowering plants". The Clarendon Press.
4. Micleu, Cindy. "Xi Yi Hua". The Jade Institute.
5. Duke, James. (2001). "Handbook of medicinal herbs". CRC Press.
6. Ma, Y. (Feb 1995). "Biologically active lignins from Magnolia biondii Pamp". National Laboratory of Natural and Biomimetic Drugs.