If you would like to support this site, please consider Donating.
Useful Temperate Plants

Amentotaxus yunnanensis

H.L.Li

Taxaceae

+ Synonyms

Amentotaxus argotaenia yunnanensis (H.L.Li) Keng f.

Common Name:

No Image.

General Information

Amentotaxus yunnanensis is an evergreen tree with a wide, ovate crown; it can grow up to 20 metres tall. The bole can be 25cm in diameter[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].
The tree is harvested from the wild for local use of its wood, and is also traded from Vietnam to China. It is sometimes grown as an ornamental in gardens and is also being investigated as a potential source of anti-cancer drugs.
Due to recent discoveries made of this species during intensive botanical surveys in Viet Nam, this species is now known to have a wider distribution than previously assumed. The majority of its (sub)populations appear to be in Viet Nam, not in China, and it is also in Viet Nam where the species attains large tree size. A re-assessment for Viet Nam gave it the status of Vulnerable (VU) for that country. In China it has been given the status of Endangered (EN); this has lead to a similar global status based on the earlier assumption that most populations were within that country. It is threatened mainly by deforestation, leading to fragmented areas of forest with declining population size in most. Targeted logging removes seed-producing trees, which may lead to diminished recruitment of seedlings and saplings in the population. The plant is classified as 'Vulnerable' 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

None known

Botanical References

266
Title
Flora of China
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/china/
Publisher
Missouri Botanical Garden Press; St. Louis.
Year
1994
ISBN
 
Description
An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
,
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.

Range

E. Asia - China (Yunnan, Guizhou), northern Vietnam, Laos

Habitat

An understorey tree, occasionally growing larger and becoming a canopy tree, scattered in mixed evergreen and deciduous broad-leaved forests; at elevations from 800 - 1,600 metres[
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.
].

Properties

Conservation StatusVulnerable
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitEvergreen Tree
Height15.00 m
Growth RateSlow
PollinatorsWind
Self-fertileNo
Cultivation StatusOrnamental, Wild

Cultivation Details

Amentotaxus species are generally natives of warm temperate, subtropical and tropical forested areas in east Asia. Most are tolerant of some frost, but only if there has first been a hot summer to fully ripen the wood. They therefore usually only succeed outdoors in warm temperate to tropical areas[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Amentotaxus yunnanensis is found in subtropical to tropical forests at elevations up to 1,600 metres. It grows in area where the mean annual precipitation is above 1,500mm and fog is frequent[
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.
]. The mean annual temperature for plants growing in Vietnam (the more tropical part of its range) is 17 - 20°c[
1192
Title
Vietnam Conifers. Conservation Status Review 2004
Publication
 
Author
Nguyen Tien Hiep, Phan Ke Loc, Nguyen Duc To Luu, P.I. Thoma
Publisher
Fauna & Flora International, Vietnam Programme; Hanoi
Year
2004
ISBN
1-903703-16-6
Description
Information on more than 30 species of Conifer growing in Vietnam, giving a description, range, conservation status, uses etc. It can be downloaded as a PDf from the Internet.
]. Plants can withstand some frost, tolerating occasional, short-lived temperatures falling to between -6.6°c and -1.1°c[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].
Succeeds in fairly dense shade when young but becoming more tolerant of full sun as it grows larger[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Succeeds in a wide range of soils, preferring one that is well-drained, moist and sandy[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. The tree is most commonly found in mixed forests on limestone karst formations in the wild; on substrates derived from silicious rocks (granite, gneiss) it is sometimes becomes a large tree in manily broad-leaved forests. It is a relatively shade tolerant species, with seedlings and saplings successfully growing up under a forest canopy[
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.
].
This species is in limited cultivation, often as a bonzai plant[
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.
].
A dioecious species, both male and female forms need to be grown if fruit and seed are required.

Edible Uses

None known

Medicinal

The leaves and stems of various species in this genus are being investigated as a potential source of compounds used in anti-cancer drugs[
1192
Title
Vietnam Conifers. Conservation Status Review 2004
Publication
 
Author
Nguyen Tien Hiep, Phan Ke Loc, Nguyen Duc To Luu, P.I. Thoma
Publisher
Fauna & Flora International, Vietnam Programme; Hanoi
Year
2004
ISBN
1-903703-16-6
Description
Information on more than 30 species of Conifer growing in Vietnam, giving a description, range, conservation status, uses etc. It can be downloaded as a PDf from the Internet.
].

Other Uses

The seeds are rich in oil[
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.
]. No uses are given.

The white wood of larger trees is valued for furniture making, construction, agricultural implements etc, while smaller sizes go to handicrafts and tool making[
266
Title
Flora of China
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/china/
Publisher
Missouri Botanical Garden Press; St. Louis.
Year
1994
ISBN
 
Description
An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
,
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
,
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.
,
1192
Title
Vietnam Conifers. Conservation Status Review 2004
Publication
 
Author
Nguyen Tien Hiep, Phan Ke Loc, Nguyen Duc To Luu, P.I. Thoma
Publisher
Fauna & Flora International, Vietnam Programme; Hanoi
Year
2004
ISBN
1-903703-16-6
Description
Information on more than 30 species of Conifer growing in Vietnam, giving a description, range, conservation status, uses etc. It can be downloaded as a PDf from the Internet.
]. Much of this is done in China and it is likely that timber of Vietnamese origin is used[
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.
].

Propagation

Seed - can be very slow to germinate, often taking 2 or more years[
78
Title
Propagation of Trees, Shrubs and Conifers.
Publication
 
Author
Sheat. W. G.
Publisher
MacMillan and Co
Year
1948
ISBN
-
Description
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
,
80
Title
Hardy Woody Plants from Seed.
Publication
 
Author
McMillan-Browse. P.
Publisher
Grower Books
Year
1985
ISBN
0-901361-21-6
Description
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.
]. It is best sown as soon as it is ripe in the autumn when it should germinate 18 months later. Stored seed may take 2 years or more to germinate. 4 months warm followed by 4 months cold stratification may help reduce the germination time[
113
Title
The Reference Manual of Woody Plant Propagation.
Publication
 
Author
Dirr. M. A. and Heuser. M. W.
Publisher
Athens Ga. Varsity Press
Year
1987
ISBN
0942375009
Description
A very detailed book on propagating trees. Not for the casual reader.
]. Harvesting the seed 'green' (when fully developed but before it has dried on the plant) and then sowing it immediately has not been found to reduce the germination time because the inhibiting factors develop too early[
80
Title
Hardy Woody Plants from Seed.
Publication
 
Author
McMillan-Browse. P.
Publisher
Grower Books
Year
1985
ISBN
0-901361-21-6
Description
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.
]. Seed voided by birds after they have eaten the fruit tends to germinate well, so scarifying the seed prior to sowing might be useful. Prick out the seedlings into individual pots once they are large enough to handle and grow them on in pots in a cold frame. The seedlings are very slow-growing and will probably require at least 2 years of pot cultivation before being large enough to plant out. Any planting out is best done in late spring or early summer, after the last expected frosts[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Cuttings of half-ripe terminal shoots, 5 - 8cm long, July/August in a shaded frame. Should root by late September but leave them in the frame over winter and plant out in late spring[
78
Title
Propagation of Trees, Shrubs and Conifers.
Publication
 
Author
Sheat. W. G.
Publisher
MacMillan and Co
Year
1948
ISBN
-
Description
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
]. High percentage[
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
].
Cuttings of ripe terminal shoots, taken in winter after a hard frost, in a shaded frame[
113
Title
The Reference Manual of Woody Plant Propagation.
Publication
 
Author
Dirr. M. A. and Heuser. M. W.
Publisher
Athens Ga. Varsity Press
Year
1987
ISBN
0942375009
Description
A very detailed book on propagating trees. Not for the casual reader.
].
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2019-10-16. <temperate.theferns.info/plant/Amentotaxus+yunnanensis>

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.