Eucalyptus diversicolor, KARRI. Western Australia
MYRTACEAE (Myrtle family)

Karri is the biggest tree of Western Australia, commonly reaching 200 feet and known to have reached 250 feet. It belongs, with E. delegatensis, E. regnans, and S. sempervirens, to the select group of Earth's tallest trees. Girths around 27 feet are in the same class as the larger Tasmanian blue gums. The reddish-brown wood is hard, dense, and very strong (with a tensile strength of 8 tons per square inch). At one time the main streets of Sydney were paved with karri blocks, long since covered with asphalt, but visible occasionally where roadwork is in progress. The wear-resistant endgrain was presented to traffic. The wood was also exported to London for the same purpose. The sole tree seen on campus, at 645 Cabrillo Avenue, near Santa Ynez Street, was planted by Professor W.F. Durand in 1910. It is now 4 feet in diameter. It may be the one referred to in a nursery list of May 1916 under accession number 157.

Illustration: McMinn, Howard E. and Evelyn Maino. 1951. An illustrated manual of Pacific coast trees; with lists of trees recommended for various uses on the Pacific coast by H. W. Shepherd. 2d ed. Berkeley, Calif.: University of California Press.

Other campus Eucalypts
E. acaciiformis | E. aggregata | E. albens | E. albida | E. blakelyi | E. botryoides | E. botryoides hybrid | E. bridgesiana | E. caesia | E. camaldulensis | E. cinerea | E. citriodora | E. cladocalyx | E. conferruminata | E. cornuta | E. crebra | E. cypellocarpa | E. diversicolor | E. dundasii | E. dwyeri | E. erythronema | E. ficifolia | E. globulus | E. goniocalyx | E. gunnii | E. intertexta | E. kruseana | E. laeliae | E. lehmannii | E. leucoxylon | E. linearis | E. loxophleba | E. macarthurii | E. macrandra | E. maculosa | E. mannifera | E. megacornuta | E. melliodora | E. morrisbyi | E. nicholii | Eucalyptus Notes | E. ochrophloia | E. oleosa ssp. oleosa | E. paniculata | E. parvifolia | E. parvula | E. patens | E. pauciflora | E. pellita | E. platypus | E. polyanthemos | E. pulchella | E. pulverulenta | E. punctata | E. redunca | E. resinifera | E. robusta | E. rudis | E. salubris | E. sideroxylon | E. squamosa | E. stellulata | E. urnigera | E. viminalis | E. viridis

Illustrations (links open new windows): gallery

Additions/Revisions: Cal Poly Biology Professor Matt Ritter and Students Discover Record Tree in Poly Canyon

Name derivation, genus | species

Related material: Eucalyptus checklist

Botanical name index | Common name index | Family home