Bull oak, Layered acorn oak


Scientific Name

Quercus lamellosa Sm.


Other Names

Bansī (Nepali)


Life Form

Tree


Synonyms

Cyclobalanopsis lamellosa (Sm.) Oerst.


Family

Fagaceae



Bansī (Nepali)
Image by - Saroj Kasaju
Usages

Wood - Fuelwood and Construction: It is used for timber, and fuelwood. Dye - It is a potential source of tannins.


Native to

Bhutan, China, India, Myanmar, Nepal


Habitat

It grows in temperate broadleaf forests at altitudes of 1300-2500 m asl.


Conservation Status

Near Threatened


More Info

Known for its distinctive, large lobed leaves. Used in reforestation projects for its adaptability to various soil conditions.


Plant Description

It is a medium-sized to large evergreen tree that can reach up to 40 m tall.

Stem is stout and grayish-brown with age, with shallow fissures. Branches are irregular, forming a broad crown.

Leaves are simple, ovate-elliptic, leathery, and glossy green above. They are 16-45 cm long and 6-15 cm wide. The margins are sharply serrated. The underside of the leaves is paler green with prominent veins. Leaves are arranged alternately on the stem.

Flowers are inconspicuous, unisexual, and wind-pollinated. Male flowers are borne in catkins, while female flowers are solitary or in small clusters. Both types of flowers appear in spring on the same tree.

Fruit is a broad acorn, 2-3 cm long and 3-4 cm wide. It is set in a deep cupule with concentric rings of woody scales. The acorn nut is brown and ovoid-shaped.


Phenology

Flowering: March
Fruiting: October – December