Chinese yew

Chinese yew
	Chinese yew ( Taxus sumatrana )
Systematics
Subdivision :	Seed plants (Spermatophytina)
Class :	Coniferopsida
Order :	Conifers (Coniferales)
Family :	Yew family (Taxaceae)
Genre :	Yew trees ( Taxus )
Type :	Chinese yew
Scientific name
	Taxus sumatrana
	( Miq. ) De foliage.

The Chinese yew ( Taxus sumatrana ) is a plant from the genus of yew ( Taxus ) in the family of yew plants (Taxaceae).

description

Branch with coniferous leaves

Vegetative characteristics

The Chinese yew is an evergreen shrub to tree that reaches heights of up to 14 meters. It has a broad, bushy habit when it is planted. The bark is greyish-red. The Chinese yew tree has very loose needles; whole parts of the branches are even completely without needles. The needles, which are arranged in a spiral on the twigs but appear to be in two rows, are narrow (2 to 2.5 millimeters) and 1.2 to 2.7 centimeters long.

Generative characteristics

The egg-shaped seeds that ripen in the year of fertilization in November and stand together in twos or threes are about 5 millimeters long and surrounded by a red seed coat ( arillus ).

The number of chromosomes is 2n = 24.

Occurrence

Taxus sumatrana thrives in a disjoint area : in the Himalayan area are the areas of Taxus sumatrana in Afghanistan , Tibet , Nepal , India , Bhutan and Myanmar .

In Vietnam it grows at altitudes from 400 to 2150 meters. In Sumatra , the Philippines and Celebes there are locations between 1400 and 2300 meters in moist tropical mountain forests , tropical highland areas and cloud forests in the undergrowth; locally it can be dominant there. In Taiwan , it has locations in the northern and central areas of the island at altitudes of 1000 to 3000 meters. There is also information for China and there it can be found at altitudes of 1500 to 3100 meters, but it is probably Taxus wallichiana or Taxus mairei .

Systematics

The first description was in 1859 under the name ( Basionym ) Cephalotaxus sumatrana by Friedrich Anton Wilhelm Miquelin Flora van Nederlandsch Indië , 2, 7, page 1076. The new combination to Taxus sumatrana (Miq.) De foliage. was published in 1978 by David John de Laubenfels in Kalikasan, Philippine Journal of Biology , Volume 7, Issue 2, page 151.

Due, among other things, to the difficulty of dividing this species into varieties or considering its sub-forms as separate species, there is a wealth of other synonyms for Taxus sumatrana (Miq.) De Laub. : Cephalotaxus celebica Warb. , Cephalotaxus mannii Pritzel ex Diels non Hook. f. , Podocarpus celebicus Hemsl. , Taxus baccata Masters non L. , Taxus baccata ssp. cuspidata var. chinensis pilgrim , Taxus baccata ssp. wallichiana pilgrims non Zucc. , Taxus baccata var. Sinensis Henry , Taxus celebica (Warb.) HLLi , Taxus cuspidata Kaneh. non sieve. & Zucc. , Taxus cuspidata var. Chinensis (pilgrims) Rehder & Wilson , Taxus chinensis (pilgrims) Rehder , Taxus fuana Nan Li & RRMill , Taxus mairei (Lemée & H.Lév.) SYHu Taxus speciosa Florin , Taxus wallichiana Foxworthy non Zucc. , Taxus wallichiana var. Chinensis (Pilgrim) Florin , Taxus yunnanensis W.C. Cheng & LKFu , Tsuga mairei Lemée & Lév.

use

It is very rarely planted in Central Europe .

swell

Christopher J. Earle: Taxus sumatrana (Miquel) de Laubenfels 1978. In: The Gymnosperm Database. March 1, 2019, accessed May 10, 2019 .

Individual evidence

^ ^A ^b ^c Christopher J. Earle: Taxus sumatrana (Miquel) de Laubenfels 1978. In: The Gymnosperm Database. March 1, 2019, accessed May 10, 2019 .
↑ Taxus sumatrana at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed May 10, 2019.

Web link

Commons : Chinese yew ( Taxus sumatrana ) - Collection of images, videos and audio files

Taxus wallichiana inthe IUCN Red List of Threatened Species 2019.1. Listed by: P. Thomas, A. Farjon, 2010. Retrieved May 10, 2019.