Engelhardia roxburghiana
Wall.
Juglandaceae
The generic name of this plant is often spelled Engelhardtia. The original spelling, when the name was first published by Blume in 1825 - 26 was Engelhardia, although this was later corrected to Engelhardtia by Blume in 1829. There still seems to be disagreement over which version of the name is correct, but at present we are following GRIN and Tropicos, who both use the original spelling[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Alfaroa roxburghiana (Lindl. ex Wall.) Iljinsk.
Alfaropsis roxburghiana (Lindl.) Iljinsk.
Engelhardia chrysolepis Hance
Engelhardia fenzelii Merr.
Engelhardia formosana (Hayata) Hayata
Engelhardia polystachya Radlk.
Engelhardia pterococca (Roxb.) Kuntze
Engelhardia spicata formosana Hayata
Engelhardia unijuga Chun ex P.Y.Chen
Engelhardia wallichiana Lindl. ex Wall.
Juglans pterococca Roxb.
Common Name: Guiping-tiancha
General Information
Engelhardia roxburghiana is an evergreen to briefly deciduous tree with a dense, spreading crown; it can grow up to 35 metres tall. The bole is up to70cm in diameter with thin buttresses up to 2 metres high[
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
].
The tree is harvested from the wild for local use of its wood. It belongs to a group of timbers known in the trade as 'Dungun Paya', and is sometimes traded.
Engelhardtia roxburghiana is a large tree species native to China and Southeast Asia. The deforestation within these ranges is a potential threat to the species but this has not been confirmed and is not identified here as a major threat. The species has a wide native range and an estimated extent of occurrence that exceeds the criteria for a threatened category. Due to this population is assumed to be large. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338- Title
- IUCN Red List of Threatened Species
- Publication
-
- Author
-
- Website
- http://www.iucnredlist.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Known Hazards
The bark and the leaves are rich in tannin,. They are used as a fish intoxicant[
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
].
Botanical References
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
Range
E. Asia - northeast India, Bangladesh, southern China, Myanmar, Thailand, Laos, Cambodia, Vietnam, Malaysia, Indonesia.
Habitat
Dense, primary, mixed dipterocarp forest in hilly country, growing on clay-rich, fairly fertile soils; at elevations up to 1,750 metres[
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
].
Properties
Conservation Status | Least Concern |
Other Uses Rating | |
Habit | Semi-deciduous Tree |
Height | 28.00 m |
Pollinators | Wind, ?Insects |
Cultivation Status | Wild |
Cultivation Details
Not known
Edible Uses
None known
Medicinal
This is one of four species that are used in Guangxi, China to make the ethnomedicine tiancha (sweet tea). This species is known as guiping-tiancha. The other three species are Rubus suavissimus S.Lee (Yaoshan-tiancha); Lithocarpus litseifolius (Hance) Chun (baise-tiancha); and Mycetia sinensis (Hemsl.) Craib (longzhou-tiancha)[
918- Title
- Journal of Ethnobiology. Vol. 12
- Publication
-
- Author
-
- Website
- http://www.ethnobiology.org
- Publisher
- Society of Ethnobiology
- Year
- 1992
- ISBN
- 0278-0771
- Description
- A periodical with articles on the various uses of plants by native peoples.
].
Tiancha is used chiefly in the treatment of hypertension and diabetes[
918- Title
- Journal of Ethnobiology. Vol. 12
- Publication
-
- Author
-
- Website
- http://www.ethnobiology.org
- Publisher
- Society of Ethnobiology
- Year
- 1992
- ISBN
- 0278-0771
- Description
- A periodical with articles on the various uses of plants by native peoples.
].
.
Other Uses
The sapwood is white to pale yellow[
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
].
We do not have any more specific information on the wood of this species, but it belongs to a group of timbers known in the trade as 'Dungun Paya'[
893- Title
- Identification and utilization of lesser-known commercial timbers in Peninsular Malaysia 6
- Publication
- Timber Technology Bulletin No. 40
- Author
- Lim S.C. & Gan K.S.
- Website
- http://www.frim.gov.my/?page_id=1842
- Publisher
- Forest Research Institute; Malaysia
- Year
- 2006
- ISBN
- 139-258
- Description
- Part of an excellent series of publications, this one giving a brief guide to four lesser known groups of commercial timbers from southeast Asia. It is available in PDF format on the Internet.
]. The following is a general description of dungun paya wood:-
The heartwood is grey-brown with a core that has a dark streaky colour; it merges gradually into the pale grey-brown sapwood. The texture is moderately coarse and even; the grain is straight, shallowly interlocked or sometimes wavy. The wood is soft to moderately hard, not very durable. It is easy to work but, being a fairly light timber it should not be used in situations where excessive strength and impact forces are required. Uses of the timber include veneer and plywood, turnery, moulding, tool handle for non-impact purposes, domestic flooring and general utility furniture. The corewood is decorative and it may be used for small ornamental items[
893- Title
- Identification and utilization of lesser-known commercial timbers in Peninsular Malaysia 6
- Publication
- Timber Technology Bulletin No. 40
- Author
- Lim S.C. & Gan K.S.
- Website
- http://www.frim.gov.my/?page_id=1842
- Publisher
- Forest Research Institute; Malaysia
- Year
- 2006
- ISBN
- 139-258
- Description
- Part of an excellent series of publications, this one giving a brief guide to four lesser known groups of commercial timbers from southeast Asia. It is available in PDF format on the Internet.
,
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
].
Propagation
Seed -
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