은청가문비

 

 

소나무과 속 검색표, 가문비나무속 종 검색표(종비나무)

https://daehyo49.tistory.com/7810171

 

 

학명 : Picea pungens Engelm.

분류 : 소나무과(Pinaceae)

Common Name : Blue Spruce

국표식 등재국명 : 은청가문비

원산지 : 북미(미국)

학명 풀이

Picea : From pitch

pungens : sharply pointed, spiny

 

 

사진 : 2025.11.15 성남은행식물원

 

 

 

 

가문비나무는 잎의 단면이 렌즈형이고 독일가문비는 능형지만 잎 끝이 둔하다.

은청가문비는 잎 단면이 능형이나 잎 끝이 뾰족하다

 

 

 

FNA 설명

 

 

Picea pungens Engelmann, Gard. Chron. n. s. 11: 334. 1879.

Blue spruce, Colorado blue spruce, épinette bleue, pino real

 

Picea parryana Sargent

 

Trees to 50m; trunk to 1.5m diam.; crown broadly conic. Bark gray-brown. Branches slightly to strongly drooping; twigs not pendent, stout, yellow-brown, usually glabrous. Buds dark orange-brown, 6--12mm, apex rounded to acute. Leaves 1.6--3cm, 4-angled in cross section, rigid, blue-green, bearing stomates on all surfaces, apex spine-tipped. Seed cones (5--)6--11(--12)cm; scales elliptic to diamond-shaped, widest below middle, 15--22 ´ 10--15mm, rather stiff, margin at apex erose, apex extending 8--10mm beyond seed-wing impression. 2 n =24.

 

Midmontane forests; 1800--3000m; Ariz., Colo., Idaho, N.Mex., Utah, Wyo.

 

Limited hybridization occurs between Picea pungens and P . engelmannii (R.Daubenmire 1972; R.J. Taylor et al. 1975).

 

Blue spruce ( Picea pungens ) is the state tree of Colorado (as Colorado blue spruce) and Utah.

 

 

 

 

 

 

 

Wikipedia 설명

 

 

 

The blue spruce (Picea pungens), also commonly known as Colorado spruce or Colorado blue spruce, is a species of spruce tree native to North America in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. It is noted for its often strongly glaucous blue-green needles, and has therefore been used as an ornamental tree in many places far beyond its native range.

 

Description

 

Foliage and young cone, Pecos Wilderness, New Mexico

In the wild, Picea pungens grows to as much as 50 meters (164 ft) in height,[4] but more typically 30 m (98 ft) tall.[5] When planted in parks and gardens it most often grows 9 to 18 m (30 to 60 ft) tall with a spread of 3 to 6 m (10 to 20 ft).[6] It has scaly gray-brown bark with a slight amount of a cinnamon-red undertone on its trunk, not as rough as an Engelmann spruce.[5] On older trees the trunk bark becomes deeply furrowed and scaly.[7] The trunk diameter may reach as much as 1.5 m (4.9 ft).[4] The root system is of the blue spruce is dense and compact, lacking a taproot.[8]

 

Blue spruce is a conifer with a conical crown when young, but more open and irregular in shape as it becomes older.[5] The stout branches grow out horizontally in well defined whorls,[5] but lower branches droop downwards as trees age.[9] Young twigs never hang downwards and are yellow-brown in color.[4]

 

The narrow, needle-like, evergreen leaves are quite sharply pointed and may be dull green, blue, or pale white.[7] Each of the needles is four sided with stomata on every side, stiff, and 1.6–3 centimeters (3⁄4–1+1⁄4 in) long.[4] The needles are attached radially to their shoots, but curve upward. The leaf buds are golden brown and cone shaped.[10] The buds may be 6 to 12 millimeters (1⁄4 to 1⁄2 in) in size and the tip may either be blunt or pointed.[4]

 

The pollen producing cones, more properly strobili, develop throughout the crown of blue spruce trees, but are more common in the upper half of the crown.[11] Pollen cones are mainly yellow with a touch of red and average 1.5 cm (1⁄2 in) long.[5] The seed cones begin growing in May or June and release their mature seeds in the autumn of the same year in which they start to grow.[12] When young they are purple-brown in color.[5] When fully mature they are light brown, longer than they are wide, circular in cross section with thin, papery scales and can be curved or straight.[12] The cones can measure between 5 and 12 cm (2 and 4+3⁄4 in) long, but are more typically 6 to 11 cm (2+1⁄4 to 4+1⁄4 in).[4] The seed cones are only found in the top tenth to quarter of the tree and are normally near the end of side branches.[11]

 

 

Seeds of blue spruce

The seeds are dark brown.[13] They average 4 mm in length with the papery wing extending beyond the tip almost twice this length.[5]

 

The blue spruce can be confused with four other spruce species, Engelmann spruce, European spruce (Picea abies), white spruce (Picea glauca), and black spruce Picea mariana),[14] however only the range of the Engelmann spruce overlaps with the blue spruce in the wild.[15] Though larger for the blue spruce, the measurements of their cones and cone scales overlap with the Engelmann spruce.[16] The cones of the Engelmann measuring 3–8 cm with the scales measuring 3–8 mm beyond the seed impression while the blue spruce measures 5–12 cm with scales that measure 8–10 mm beyond the seed impression. However, the twigs of the Engelman are always finely hairy while those of the blue are usually hairless.[17]

 

 

 

위 세밀화를 그렸을 당시의 학명은 Picea parryana였다함.