Overview

Distribution

W Hubei, E Sichuan (Chengkou Xian)
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

E Gansu, Hebei, Henan, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi [Korea]
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Morphology

Description

Trees to 15 m tall; bark dark gray. Branchlets brown, sparsely pubescent. Petiole 4-6 mm, pubescent; leaf blade ovate or ovate-lanceolate, 4.5-6 × 2.5-4.5 cm, papery, abaxially villous along veins, adaxially scattered pilose, base rounded, margin irregularly and doubly mucronate serrate, apex acute or acuminate; veins 9-11 on each side of midvein. Female inflorescence ovoid or ovoid-oblong, 1-1.5 × 0.5-1.5 cm; peduncle 1-2 mm; bracts 5-10 mm, ciliate, with 3 subequal lobes. Nutlet obovate, pubescent, with very narrow wings. Fl. May-Jun, fr. Jul-Aug.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Description

Shrubs to 5 m tall; bark black-gray. Branchlets brown or yellow-brown, densely villous. Petiole 0.2-2 cm, densely villous; leaf blade ovate, broadly ovate, or ovate-elliptic, 1.5-6 × 1-5 cm, abaxially villous, sometimes resinous punctate, sparsely bearded in axils of lateral veins, adaxially densely villous when young, base rounded or broadly cuneate, margin irregularly and doubly dentate-serrate, apex acute or obtuse; lateral veins 8 or 9(or 10) on each side of midvein. Female inflorescence subglobose, rarely oblong, 1-2 × 0.6-1.5 cm; peduncle 1-2 mm; bracts 5-9 mm, pubescent, ciliate, 3-lobed, lobes reflexed, middle lobe lanceolate, lateral lobes spreading, ovate, 1/3-1/2 as long as middle lobe. Nutlet obovate or ovate, with very narrow wings, sometimes horn-shaped at apex. Fl. May-Jun, fr. Jul-Aug.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Diagnostic Description

Synonym

Betula chinensis Maximowicz var. fargesii (Franchet) P. C. Li.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Synonym

Betula ceratoptera G. H. Liu & Y. C. Ma; B. chinensis var. angusticarpa H. Winkler; B. chinensis var. nana Liou; B. exalata S. Moore; B. jiaodongensis S. B. Liang; B. liaotungensis Baranov.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

* Broad-leaved forests or thickets on hilltops; 1500-2600 m.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Broad-leaved forests in mountain valleys, shaded, rocky mountain slopes; 700-3000 m.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Betula chinensis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Betula chinensis

Betula chinensis (Chinese: 坚桦; pinyin: jian hua) is a species of birch that can be found in China and Korea on the elevation of 700–3,000 metres (2,300–9,800 ft).[1]

Description[edit]

The species is 5 metres (16 ft) tall with either yellow or yellowish-brown colour. Leaf blade is elliptic and ovate with a diameter of 1.5–6 centimetres (0.59–2.4 in) by 1–5 centimetres (0.39–2.0 in). Female species have a subglobose inflorescence which is also oblong with a diameter of 1–2 centimetres (0.39–0.79 in) by 0.6–1.5 centimetres (0.24–0.59 in). It peduncle is 1–2 millimetres (0.039–0.079 in) long while its bracts can be as long as 5–9 millimetres (0.20–0.35 in). Flowers bloom from May to June while the fruits ripe from July to August.[1]

References[edit]


Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Notes

Comments

This species is one of the most valuable timber trees in N China. The wood is extremely hard and dense, close grained, very fine textured, and is used for making pestles and wagon axles.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!