Tetraclinis articulata

From Gardenology.org - Plant Encyclopedia and Gardening Wiki
(Redirected from Callitris quadrivalvis)
Jump to navigationJump to search


Tetraclinis articulata in the mountains of Cartagena, Spain


Plant Characteristics
Height: 50 ft"ft" can not be assigned to a declared number type with value 50.
Width: 25 ft"ft" can not be assigned to a declared number type with value 25.
Cultivation
Exposure: sun
Features: bonsai
USDA Zones: 9 to 11
Scientific Names

Cupressaceae >

Tetraclinis >

articulata >


Tetraclinis forest at Al Hoceima National Park

Tetraclinis is a genus of evergreen coniferous tree in the cypress family Cupressaceae, containing only one species, Tetraclinis articulata, also known as Sandarac or the Barbary thuja[1], endemic to the western Mediterranean region. It grows at relatively low altitudes in a hot, dry subtropical Mediterranean climate.[2]

Tetraclinis cones at Al Hoceima National Park

It is a small, slow-growing tree, to 6–15 m (rarely 20 m) tall and 0.5 m (rarely 1 m) trunk diameter, often with two or more trunks from the base. The foliage forms in open sprays with scale-like leaves 1–8 mm long and 1–1.5 mm broad; the leaves are arranged in opposite decussate pairs, with the successive pairs closely then distantly spaced, so forming apparent whorls of four. The cones are 10–15 mm long, green ripening brown in about 8 months from pollination, and have four thick scales arranged in two opposite pairs. The seeds are 5–7 mm long and 2 mm broad, with a 3–4 mm broad papery wing on each side.[2][3]

It is one of only a small number of conifers able to coppice (re-grow by sprouting from stumps), an adaptation to survive wildfire and moderate levels of browsing by animals. Old trees that have sprouted repeatedly over a long period form large burrs at the base, known as lupias.[2]

The species has also been used in Bonsai. It is grown as an ornamental tree, valued in hot, dry climates; it can be trimmed as a hedge.[3]


Read about Tetraclinis articulata in the Standard Cyclopedia of Horticulture 

Callitris quadrivalvis, Vent. (Thuja articulata, Vahl). Arab-tree. Sandarach. Gum Tree. Small tree, with fragrant hard durable wood: branches jointed and spreading: Ivs. very small, flattened, distichous, reduced to scales at the nodes: cone 4-sided, small, the valves oval and with a protuberance near the tip. N. Afr., in the mts. —Furnishes varnish resin (gum sandarach). CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

Do you have cultivation info on this plant? Edit this section!

Propagation

Do you have propagation info on this plant? Edit this section!

Pests and diseases

Do you have pest and disease info on this plant? Edit this section!

Species

Gallery

If you have a photo of this plant, please upload it! Plus, there may be other photos available for you to add.

References

External links


  1. http://books.google.com/books?id=fuwBN04nF9QC&pg=PA118&lpg=PA118&dq=barbary+thuja&source=bl&ots=8IHOTJDovW&sig=GA6vr4pZ2ehEYozmp8Pc2Xl9Yu0&hl=en&ei=CeWZSerfKJ6DtwfTl5CcCw&sa=X&oi=book_result&resnum=1&ct=result
  2. 2.0 2.1 2.2 Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Royal Botanic Gardens, Kew. ISBN 1-84246-068-4
  3. 3.0 3.1 Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.