View source for Tsuga dumosa

{{SPlantbox
|familia=Pinaceae
|genus=Tsuga
|species=dumosa
|taxo_author=(D. Don) Eichler
|habit=tree
|habit_ref=Flora - A Gardener's Encyclopedia
|Max ht box=150
|Max ht metric=ft
|height_ref=Flora - A Gardener's Encyclopedia
|Max wd box=25
|Max wd metric=ft
|width_ref=Flora - A Gardener's Encyclopedia
|lifespan=perennial
|exposure=sun
|sun_ref=Flora - A Gardener's Encyclopedia
|Temp Metric=°F
|min_zone=8
|usda_ref=Flora - A Gardener's Encyclopedia
|max_zone=10
|image=Tsuga dumosa Bhutan2.jpg
|image_width=180
}}
'''''Tsuga dumosa''''', commonly called the '''Himalayan Hemlock''' is a species of [[conifer]] native to the eastern [[Himalayas]]. It occurs in parts of [[India]], [[Burma]], [[Vietnam]], [[Tibet]], and [[China]]. Within its native range the tree is used for construction as well as for furniture. In [[Europe]] and [[North America]], it is occasionally encountered as an ornamental species and was first brought to the [[United Kingdom]] in 1838.

''T. dumosa'' is a tree growing 20 to 25&nbsp;metres (65 to 80&nbsp;ft) high and exceptionally to 40&nbsp;m (130&nbsp;ft). The [[diameter]] at breast height is typically 40 to 50&nbsp;cm (16 to 20&nbsp;in), but can be beyond 100&nbsp;cm (40&nbsp;in).<ref name="Data"/> The crown on small trees is ovoid and their form is like that of pendulous bushes. Older trees tend to have multiple stems from one or two sinuous [[bole]]s, especially in cultivation. The crown of mature trees is broad, irregular-pyramidal and open. The [[bark]] is a similar to that of an old [[larch]]: somewhat pinkish to grey-brown and heavily ridged with broad, shallow, flaky fissures.<ref name="Mitchell">{{cite book
  | last =Mitchell
  | first =Alan
  | authorlink =Alan Mitchell
  | coauthors =
  | title =Trees of Britain & Northern Europe
  | publisher =Harper Collins Publishers
  | date =1974
  | location =London
  | pages = 146–147
  | id =ISBN 0-00-219213-6  }}</ref> The [[branch]]es are oblique or horizontal. The twigs are reddish brown or greyish yellow in their first year and are pubescent, i.e. covered with short hairs. Branches that are 2 to 3 years old are greyish brown or dark grey with leaf scars. The [[wood]] from the tree is a brownish yellow with a fine structure and straight veins.<ref name="Data"/>

The [[leaves]] are spirally arranged, pointing forward on the branches and placed distantly from one another compared to other species in the genus ''[[Tsuga]]''. They are linear in shape, and 10 to 25&nbsp;mm (0.5 to 1&nbsp;in) long by 2 to 2.5&nbsp;mm (0.07 to 0.1&nbsp;in) wide. The ends are obtuse or rounded, and very occasionally emarginate. The upper surface of the leaves is green and shiny, while the undersides have 2 wide silvery [[stomata]]l bands. The upper half of the leaves usually have small dents on the margins, i.e. the margins are rarely entire. The [[midrib]] is concave on the upper surface. <ref name="Data"/><ref name="Mitchell"/> 

The stamenate [[flower]]s are globose in shape, solitarily arranged and axillary. The [[anther]]s are a green-yellow in colour and they lack an air sac. The pistillate flowers are round-ovate in shape, also solitarily arranged, terminal and slightly down-curved. They have many spiral scales with 2 [[ovule]]s contained within each scale. The [[seed]]s are about 9&nbsp;mm (0.4&nbsp;in) long, ovate in shape, brown in colour and have thin wings in their upper parts. Flowering occurs from April to May and fruiting from October to November.<ref name="Data"/>

==Cultivation==


===Propagation===


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==Varieties==


==Gallery==

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==References==
<references/>
<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
<!--- xxxxx  *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608  -->

==External links==
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