| Picea alcoquiana | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| (unranked): | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Pinales |
| Family: | Pinaceae |
| Genus: | Picea |
| Species: | P. alcoquiana |
| Binomial name | |
| Picea alcoquiana Veitch ex Lindl. carriére | |
Picea alcoquiana is a species of conifer in the family Pinaceae. It is native only to Japan.
A spruce is a tree of the genus Picea, a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. Picea is the sole genus in the subfamily Piceoideae. Spruces are large trees, from about 20–60 m tall when mature, and have whorled branches and conical form. They can be distinguished from other members of the pine family by their needles (leaves), which are four-sided and attached singly to small persistent peg-like structures on the branches, and by their cones, which hang downwards after they are pollinated. The needles are shed when 4–10 years old, leaving the branches rough with the retained pegs. In other similar genera, the branches are fairly smooth.
Picea abies, the Norway spruce or European spruce, is a species of spruce native to Northern, Central and Eastern Europe. It has branchlets that typically hang downwards, and the largest cones of any spruce, 9–17 cm long. It is very closely related to the Siberian spruce, which replaces it east of the Ural Mountains, and with which it hybridizes freely. The Norway spruce has a wide distribution for it being planted for its wood, and is the species used as the main Christmas tree in several countries around the world. It was the first gymnosperm to have its genome sequenced. The Latin specific epithet abies means “fir-like”.
Picea engelmannii, with common names Engelmann spruce, white spruce, mountain spruce, or silver spruce, is a species of spruce native to western North America, from central British Columbia and southwest Alberta, southwest to northern California and southeast to Arizona and New Mexico; there are also two isolated populations in northern Mexico. It is mostly a high altitude mountain tree, growing at 900 metres (3,000 ft) – 3,650 metres (11,980 ft) altitude, rarely lower in the northwest of the range; in many areas it reaches the alpine tree line.
The blue spruce, also commonly known as green spruce, white spruce, Colorado spruce, or Colorado blue spruce, is a species of spruce tree. It is native to North America, and is found in USDA growing zones 1 through 7. It is found naturally in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. It has been widely introduced elsewhere and is used as an ornamental tree in many places far beyond its native range. The blue spruce has blue-green colored needles and is a coniferous tree.
Picea jezoensis, the dark-bark spruce, Ezo spruce, Yezo spruce, or Jezo spruce, is a large evergreen tree growing to 30–50 m tall and with a trunk diameter of up to 2 m. It is native to northeast Asia, from the mountains of central Japan and the Changbai Mountains on the China-North Korea border, north to eastern Siberia, including the Sikhote-Alin, Kuril Islands, Sakhalin and Kamchatka. It is found in cold but humid temperate rain forests, and nowhere does its range extend more than 400 km from the Pacific Ocean. The specific epithet jezoensis derives from Ezo, an old name for Hokkaido and other islands north of the Japanese island of Honshu, where the species is found.
Picea orientalis, commonly known as the Oriental spruce or Caucasian spruce, is a species of spruce native to the Caucasus and adjacent northeast Turkey.
Picea smithiana is a species of evergreen tree in the family Pinaceae family It is referred to by the common names morinda spruce and West Himalayan spruce, and is a spruce native to the western Himalaya and adjacent mountains, from northeast Afghanistan, northern Pakistan, India to central Nepal. It grows at altitudes of 2,400-3,600 m in forests together with deodar cedar, blue pine and pindrow fir.
Picea meyeri is a species of spruce native to Nei Mongol in the northeast to Gansu in the southwest and also inhabiting Shanxi, Hebei and Shaanxi.
Picea koraiensis, the Korean spruce, is a species of spruce.
Picea obovata, the Siberian spruce, is a spruce native to Siberia, from the Ural Mountains east to Magadan Oblast, and from the Arctic tree line south to the Altay Mountains in northwestern Mongolia.
Picea schrenkiana, Schrenk's spruce, or Asian spruce, is a spruce native to the Tian Shan mountains of central Asia in western China (Xinjiang), Kazakhstan, and Kyrgyzstan. It grows at altitudes of 1,200–3,500 metres, usually in pure forests, sometimes mixed with the Tien Shan variety of Siberian fir. Its name was given in honour of Alexander von Schrenk (1816–1876).
Picea crassifolia, the Qinghai spruce, is a species of conifer in the family Pinaceae. It is found only in China.
Picea farreri is a species of conifer in the pine family, Pinaceae. It is known by the common name Farrer's spruce. It is native to China, where it is known only from Yunnan, and to Myanmar.
Picea likiangensis, commonly known as Lijiang spruce, Lakiang spruce or Lijiang yunshan, is a species of spruce found in Bhutan and China. Its population has been reduced by 30% in 75 years by logging, and the species is therefore categorised as vulnerable by the IUCN.
Picea maximowiczii, the Japanese bush spruce, is a species of conifer in the pine family. It is endemic to Japan; its range is limited to Akaishi Mountains, Okuchichibu Mountains and the Yatsugatake Mountains on Honshu.
Picea neoveitchii is a species of conifer in the family Pinaceae. It is found only in China. It is threatened by habitat loss.
Picea purpurea, also known as purple cone spruce and purple-coned spruce is a species of spruce found only in China. It is likely to be a hybrid species produced by crosses between Picea likiangensis and Picea wilsonii, or possibly involving other species.
Picea retroflexa, the Tapao Shan spruce, is a species of conifer in the family Pinaceae that is endemic to China, growing in West Sichuan, Kangding, Jiuzhaigou, Qinghai, and Ban Ma Xian. Its limited habitat is threatened by habitat loss due to logging, fires, and grazing.
Picea wilsonii is a species of conifer in the family Pinaceae. It is found only in China.
The Cameroonian shrew is a species of mammal in the family Soricidae. It is endemic to Cameroon. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
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