Karri
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| Karri{{#if:{{{status|}}}| {{#switch:{{StatusSecure
| se|SECURE|Secure|secure=Conservation status: Secure | dom|DOMESTICATED|Domesticated|domesticated=Conservation status: Domesticated | data|DD|DATA=Conservation status: Data deficient | lr=Conservation status: Lower risk | lc|LR/LC|LR/lc|lr/lc|LRLC|LRlc|lrlc=Conservation status: Lower risk (lc) | LR/nt|lr/nt|LRNT|LRnt|lrnt|NT|nt=Conservation status: Lower risk (nt) | LR/cd|lr/cd|LRCD|LRcd|lrcd=Conservation status: Lower risk (cd) | vu=Conservation status: Vulnerable | en=Conservation status: Endangered | cr=Conservation status: Critical | ew=Conservation status: Extinct in the wild | ex|EXTINCT|Extinct|extinct=Conservation status: Extinct{{#if:{{{extinct|}}}| ({{{extinct}}}) }} | Fossil|fossil=Conservation status: Fossil | pre=Conservation status: Prehistoric | Text|TEXT=Conservation status: See text | {{StatusSecure }}}}Template:Subtext}|contents=Fossil range: {{{fossil_range|}}} }} |
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| image = ClimbingTheGloucesterTree_2005_SeanMcClean.jpg | image_width=200px | image_caption = Climbing a famous Karri Tree - The Gloucester Tree | regnum = Plantae | divisio = Magnoliophyta | classis = Magnoliopsida | ordo = Myrtales | familia = Myrtaceae | genus = Eucalyptus | species = E. diversicolor | binomial = Eucalyptus diversicolor | binomial_authority = F.Muell.
}} Karri (Eucalyptus diversicolor) is a eucalypt which is native to the wetter regions of south western Australia. The tree grows to 90 meters, making it one of the tallest species in the world. It has white to cream bark which changes colour to brown as it matures and is shed. As the bark is shed the prodimantly white trunk takes on a patina of colours from white to grey to deep brown. It is this effect from which the botanic name derives. The trunk extends straight up with no secondary trunks, occaisionally a twin trunk occurs where two trunks of the same diameter grow straight up from the seedling stage. In mature trees branches will be present in the top third of the tree only. The leaves are dark green on top, and lighter underneath, and grow to a length of 9-12 cm and 2-3 cm broad. The flowers occur in groups of seven, each flower 18-28 mm diameter. Flowers are cream coloured. It flowers in spring and summer, and flowering is stimulated after fire. The fruits are squat barrel-shaped, 7-10 mm long and 10-15 mm broad, containing numerous small dry seeds.
The soil in which karri grows is often poor, and the tree tends to flower after fire to take advantage of the nutrients released by the combustion of forest litter. The soil is classified Karri Loam Though low in some minor nutrients it is admired for its depth and pasture growing properties. The depth of the soil is several metres and thought to be created primarily from the bark shed by the tree which collects at the trunk base to a depth upwards of 6 metres in mature trees. The karri supports an extensive ecosystem which is connected to the granite outcrops of the Lower South West and the many subsequent creeks and rivers created from runoff. The karri generally dominates in the deep valleys between granite outcrops surrounding these creeks and rivers.
Karri wood is a beautiful mahogany colour, lighter in colour than jarrah. It is used extensively in the building industry, particularly in roofs due to the length and uninterupted knot free nature of the trunk. It has the reputation of being termite-prone, although it is nowhere near as susceptible to these insects as is pine. It is also a great furniture wood. Karri honey is widely sought after for its light colour and delicate flavour. Tourism to this area is also supported by the karri.
Image:Karri Walk Through Beedelup National Park.jpg
See also
Gloucester Tree, a famous karri tree in Western Australia that has a platform 61m above ground level.
External links
References
- Template:Flora of Western Australia
- Boland, D. J. et. al. (1984) Forest Trees of Australia (Fourth edition revised and enlarged), CSIRO Publishing, Collingwood, Victoria, Australia. ISBN 0643054235.