Overview
Interesting Facts
Common Names
Click on the language to view common names.
Common Names in Afrikaans:
Swartysterbasbloekom
Common Names in English:
Iron Bark, Black Ironbark, Red Ironbark, Red Ironbark Eucalyptus
Description
Family Myrtaceae
Trees
or shrubs
, evergreen
, usually with essential oils-containing cavities in foliage
, branchlets
, and flowers. Stipules absent or small and caducous
. Leaves opposite, occasionally alternate, occasionally ternate
or pseudo-whorled; leaf blade
with secondary veins pinnate or basal, often with intramarginal veins
near margin
, margin usually entire. Inflorescences axillary
or terminal
, cymose
but variously arranged, 1- to many-flowered. Flowers bisexual
, sometimes polygamous, actinomorphic
. Hypanthium usually adnate
to ovary and prolonged above it. Calyx lobes
(3 or) 4 or 5 or more, distinct
or connate
into a calyptra. Petals 4 or 5, sometimes absent, distinct or connate into a calyptra, sometimes coherent and pseudocalyptrate. Stamens usually numerous
, in 1 to several whorls; filaments
distinct or connate into 5 bundles opposite petals; anthers
2-celled, dorsifixed
or basifixed
, dehiscing longitudinally or rarely terminally; connectives
usually terminating in 1 or more apical glands
. Ovary inferior, semi-inferior, or very rarely superior, carpels 2 to more, locules 1 to many, pseudoseptum sometimes present, placentation usually axile
but occasionally parietal
; ovules 1 to several per locule. Style single; stigma single. Fruit a capsule, berry, drupaceous
berry, or drupe, 1- to many-seeded. Seeds without endosperm or endosperm sparse and thin; testa cartilaginous
or thinly membranous, sometimes absent; embryo straight or curved
.
About 130 genera and 4500-5000 species: Mediterranean region, sub-Saharan Africa, Madagascar, tropical
and temperate
Asia, Australia, Pacific islands, tropical and South America; 10 genera (five introduced
) and 121 species (50 endemic, 32 introduced treated here) in China.
Many Myrtaceae are cultivated garden ornamentals
, street trees, or plantation trees. Some members
of tribe
Syzygieae are grown as fruit crops. In addition to the cultivated members of the family
treated here, some others grown in China include Acca sellowiana (O. Berg
) Burrett (Feijoa sellowiana (O. Berg) O. Berg), Myrtus communis Linnaeus, and Syncarpia glomulifera (Smith) Niedenzu.[1]
Genus Eucalyptus
Trees
or shrubs
. Bark
smooth
, fibrous
, stringy, or tessellated. Leaves usually polymorphic
with different juvenile and mature
forms and sometimes with intermediate forms. Juvenile leaves opposite, 3 to several pairs, shortly petiolate
or sessile; leaf blade
often glaucous or with glandular
trichomes
; juvenile foliage
sometimes persisting throughout life of plant. Mature leaves alternate, petiolate; leaf blade usually leathery, secondary veins numerous
, with intramarginal veins
. Inflorescences axillary
or clustered into terminal
or axillary panicles, consisting of umbelliform condensed dichasia. Flowers bisexual
. Hypanthium campanulate
, obconic, or semiglobose, stipitate
or not, apex usually truncate
. Sepals rarely distinct
. Petals connate
, either adnate
to sepals into a 1-layered calyptra or not adnate and then with connate sepals forming a 2-layered calyptra; calyptra deciduous at anthesis
. Stamens numerous, usually distinct, in several whorls with outer whorl usually sterile
; anthers
2-celled, parallel or oblique
, elliptic
, ovate
, cordate, or bifurcate
, dehiscing longitudinally or occasionally poricidally. Ovary adnate to hypanthium, 2-7-loculed; ovules numerous. Style persistent
. Whole or most of capsule included
in expanded hypanthium; disk often well developed; valves
exserted from hypanthium, equaling hypanthium rim, or included in hypanthium. Seeds numerous, many sterile and undeveloped
, developed seeds ovate or angular; testa rigid
, sometimes developed into wings
.
About 700 species: mainly in Australia, with a minor representation in Indonesia, Papua New Guinea, and the Philippines; about 110 species cultivated in China with only 25 major ones treated here.
The genus is treated here in the broad sense, i.e.
, the segregate
Corymbia is not recognized.[2]
Physical Description
Habit: Tree
Flowers: Bloom Period: September. • Flower Color: near white, white
Size/Age/Growth
Size: over 40' tall.
Habitat
Typically found at an altitude of 0 to 1,396 meters (0 to 4,580 feet).[3]
Biology
Reproduction
Duration: Perennial
Growth
Soil: Minimum pH: 7.6 • Maximum pH: 7.8
Sunlight: Sun Exposure: Full Sun .
Moisture: Drought Tolerance: High
Temperature: Cold Hardiness: 11. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- Infraphylum:
Radiatopses
(
)
- Kenrick & Crane, 1997
- Class:
Spermatopsida
(
)
- Brongniart, 1843
- Subclass:
Rosidae
(
)
- Takhtajan, 1967
- Superorder:
Myrtanae
(
)
- Takhtajan, 1967
- Order:
Myrtales
(
)
- Reichenbach, 1828
- Suborder:
Myrtineae
(
)
-
- Family:
Myrtaceae
(
)
- A.L. de Jussieu, 1789, nom. cons.
- Myrtle Family
- Subfamily:
Leptospermoideae
(
)
- Genus:
Eucalyptus
(
)
- L'Héritier de Brutelle, 1789
- Gum
- Specific epithet:
sideroxylon
- A. Cunn. ex Woolls
- Bully
- Botanical name: - Eucalyptus sideroxylon A. Cunn. ex Woolls
- Specific epithet:
sideroxylon
- A. Cunn. ex Woolls
- Bully
- Genus:
Eucalyptus
(
- Subfamily:
Leptospermoideae
(
- Family:
Myrtaceae
(
- Suborder:
Myrtineae
(
- Order:
Myrtales
(
- Superorder:
Myrtanae
(
- Subclass:
Rosidae
(
- Class:
Spermatopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Eucalyptus leucoxylon var. minor Benth. • Eucalyptus sideroxylon var. minor (Benth.) Maiden • Eucalyptus sideroxylon var. rosea Rehder in L. Bailey
Notes
Name
Status: Accepted Name
.
Last scrutiny: 2004
Similar Species
Members of the genus Eucalyptus
ZipcodeZoo has pages for 159 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:
E. acaciiformis (Wattle-Leaved Peppermint) · E. aggregata (Rodway Black Gum) · E. alba (White Eucalyptus) · E. albens (White Box) · E. albida (White-Leaved Mallee) · E. albopurpurea (Coffin Bay Mallee) · E. alpina (Grampian Stringybark) · E. andrewsii (New England Ash) · E. angulosa (Kwaral) · E. angustissima (Narrow-Leaved Mallee) · E. apiculata (Narrow-Leaved Mallee Ash) · E. approximans (Barren Mountain Mallee) · E. archeri (Apple Cider Gum) · E. aspratilis (Flat-Topped Yate) · E. badjensis (Badja Gum Tree) · E. baeuerlenii (Baeuerlens Gum) · E. barberi (Barbers Gum Tree) · E. baxteri (Brown Stringybark) · E. blakelyi (Blakelys Red Gum) · E. botryoides (Bangalay) · E. bridgesiana (Apple Box) · E. brookeriana (Brookers Gum) · E. burdettiana (Burdetts Gum) · E. caesia (Gungurru) · E. caesia magna (Silver Princess) · E. caesia 'Magna' (Silver Princess Gum) · E. caliginosa (Broad-Leaved Stringybark) · E. calophylla (Redgum) · E. calycogona (Gooseberry Mallee) · E. camaldulensis (Red Gum) · E. camaldulensis var. obtusa (Red River Gum) · E. campaspe (Silver Gimlet) · E. camphora (Broad-Leaved Sallee) · E. cannonii (Capertree Stringybark) · E. cernua (Red-Flowered Moort) · E. cinerea (Argyle Apple) · E. cladocalyx (Sugar Gum) · E. cladocalyx var. nana (Dwarf Sugar Gum) · E. cloeziana (Gympie Messmate) · E. coccifera (Tasmanian Snow Gum) · E. conferruminata (Busy Yate) · E. consideniana (Prickly Stringybark) · E. cordata (Heart-Leaved Silver Gum) · E. cornuta (Yate) · E. coronata (Crowned Mallee) · E. crebra (Narrow-Leaved Red Ironbark) · E. crenulata (Buxton Gum) · E. crucis (Silver Mallee) · E. curtisii (Plunkett Mallee) · E. cyanophylla (Blue-Leaved Mallee) · E. cylindriflora (White Mallee) · E. cypellocarpa (Monkey Gum) · E. dealbata (Hill Gum) · E. deanei (Deanes Gum) · E. debeuzevillei (Jonama Snow Gum) · E. deglupta (Indonesian Gum) · E. diversicolor (Karri) · E. doratoxylon (Spearwood Mallee) · E. effusa (Rough-Barked Gimlet) · E. elata (River Peppermint) · E. erythrocorys (Illyarrie) · E. forrestiana (Fuchsia Gum) · E. fruticetorum (Eucalyptus) · E. gamophylla (Blue-Leaved Mallee) · E. gillii (Arkaroola Mallee) · E. glaucescens (Tingiringi Gum) · E. globoidea (White Stringybark) · E. globulus (Blue Gum) · E. globulus bicostata (Eurabbie) · E. globulus globulus (Bluegum Eucalyptus) · E. globulus globulus var. globulus (Tasmanian Blue Gum) · E. globulus maidenii (Maiden´s Gum) · E. gomphocephala (Tuart) · E. goniocalyx (Mountain Graygum) · E. grandis (Flooded Gum) · E. gregsoniana (Mallee Snow Gum) · E. grossa (Coarse-Leaved Mallee) · E. gunnii (Cider Gum) · E. gunnii 'Blue Ice' (Cider Gum) · E. gunnii 'Silver Drop' (Cider Gum) · E. haemastoma (Scribbly Gum) · E. halophila (Eucalyptus) · E. intertexta (Red Box) · E. jacksonii (Red Tingle) · E. kitsoniana (Bog Gum) · E. kruseana (Bookleaf Mallee) · E. lansdowneana (Box) · E. largiflorens (Black Box) · E. lehmannii (Bushy Yate) · E. leucoxylon (Eucalyptus) · E. leucoxylon leucoxylon (White Iron Bark) · E. leucoxylon var. Rosea (Yellow Gum) · E. loxophleba loxophleba (Eucalyptus) · E. macrocarpa (Blue Bush) · E. marginata (Jarrah) · E. microcorys (Australian Tallow Wood) · E. microtheca (Coolibah) · E. moorei nana (Little Sally) · E. morrisbyi (Morrisby's Gum) · E. mortoniana (Morton Eucalyptus)
More Info
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Further Reading
- A critical revision of the genus Eucalyptus, by J.H. Maiden. Sydney, Gullick, 1903-33. url , , p. 110, p. 138, p. 138, p. 155, p. 217, p. 240, p. 384, p. 393, p. 531, p. 555, p. 65, p. 65, p. 82, p. 83, p. 86, p. 86, p. 88, p. 91, p. 94.
- A research on the eucalypts, especially in regard to their essential oils, SydneyW.A. Gullick, Govt. Printer1920 url p. 10, p. 135, p. 271, p. 468, p. 78.
- A research on the eucalypts: especially in regard to their essential oils / by Richard T. Baker and Henry G. Smith. Sydney: Pub. by authority of the government of the state of New South Wales, W.A. Gullick, government printer, 1920. url , p. 10, p. 134, p. 135, p. 223, p. 271, p. 468, p. 469, p. 78.
- About trees, shrubs, and climbing plants for South Africa; concise hints on the making of farm plantations, shrubberies. .. Maritzburg, 1919. url , p. 47.
- Agricultural news. Bridgetown, Barbados, Bowen & sons;1902-22. url p. 431.
- American bee journal. Hamilton, Ill., etc., Dadant & Sons url p. 338, p. 761.
- American forests. Washington [etc.]American Forestry Association [etc.] url p. 70.
- American honey plants; together with those which are of special value to the beekeeper as sources of pollen. Hamilton, Ill., American Bee Journal, 1920. url p. 57.
- Arboriculture. Chicago;International Society of Arboriculture. url p. 200.
- Botanical abstracts. Baltimore, Williams & Wilkins Co. url p. 203.
- Bulletin / U.S. Department of Agriculture, Bureau of Forestry. Washington: G.P.O., 1902-1905. url , , , , p. 10, p. 106, p. 11, p. 59, p. 8, p. 80, p. 84, p. 85, p. 86, p. 87, p. 88.
- Bulletin of the British Museum (Natural History). London: The Museum, 1951-1992. url p. 197.
- Cooperative economic insect report. Hyattsville, MD. [etc.]Plant Protection and Quarantine Programs Animal and Plant Health Service. url p. 80.
- Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United by L. H. Bailey. .. assisted by William Miller. .. and many expert cultivators and botanists. London: The Macmillan company, 1909. url p. 1843, p. 1846, p. 1847.
- Eucalypts cultivated in the United States / by Alfred James McClatchie. Washington: G.P.O., 1902. url , p. 10, p. 106, p. 11, p. 8, p. 80, p. 84, p. 85, p. 86, p. 87, p. 88.
- Eucalyptus, Los Angeles, Cal., B. R. Baumgardt & co., 1895. url p. 123, p. 128, p. 138, p. 146, p. 174, p. 246, p. 265, p. 269, p. 272, p. 274, p. 280, p. 54, p. 80, p. 81, p. 82, p. 92, p. 99.
- Eucalyptus, by Abbot Kinney. Los Angeles, Cal., B.R. Baumgardt, 1895. url p. 121, p. 123, p. 128, p. 129, p. 138, p. 146, p. 174, p. 246, p. 265, p. 272, p. 274, p. 280, p. 54, p. 80, p. 81, p. 82, p. 92, p. 99.
- Eucalyptus: its history, growth, and utilization / by C.H. Sellers. Sacramento: A.J. Johnston, 1910. url p. 73, p. 87.
- Extension forester, 1926-1956: Berkeley, Calif: University of California, c1969. url .
- Farm buildings and building construction in South Africa; a text-book for farmers, agricultural students, teachers, builders, etc. By W.S.H. Cleghorne. .. with a foreword by F.B. Smith. .. with 235 diagrams. London, Longmans, Green and Co., 1922. url p. 120.
- Forest culture and eucalyptus trees, San FranciscoCubery1876 url p. 230, p. 481, p. 561.
- Forestry handbook / ed. by R. Dalrymple Hay, director of forests. Sydney: W. A. Gullick, 1915-17. url , p. 20.
- Forestry handbook. .. Sydney, W. A. Gullick, government printer, 1915-17. url , .
- Forestry in South Africa, by D.E. Hutchins. .. n.p., 1905? url p. 6.
- Gardening in California, San Francisco, A. M. Robertson, 1914. url p. 104.
- Hardwood record. Chicago: Hardwood Co., 1902-1939. url p. 23, p. 34.
- International catalogue of scientific literature. London: Published for the International Council by the Royal Society of London, 1902-1919. url p. 455.
- Inventory of seeds and plants imported / U.S. Department of Agriculture, Bureau of Plant Industry. Washington, D.C.: G.P.O., 1914-1924. url p. 104.
- Journal of botany, British and foreign. 53 1915 London: Robert Hardwicke, 1863-1942. url p. 205, p. 209.
- Journal of forestry. Washington: Society of American Foresters, 1917- url p. 424, p. 427.
- Marine borers and their relation to marine construction on the Pacific coast, being the final report of the San Francisco Bay Marine Piling Committee, prepared under the direction of the San Francisco Bay Marine Piling Committee, cooperating with the National Research Council and the American Wood-preservers' Association; C. L. Hill and C. A. Kofold San Francisco, Calif., The Committee, 1927. url p. 92.
- Nature. London, etc., Macmillan Journals Ltd., etc. url p. 192.
- Notes on the commercial timbers of New South Wales. Sydney, C. Potter, 1895. url , .
- Pamphlets on forestry in California. [1900?- url p. 92.
- Pamphlets on forestry in Hawaii. [1900?- url p. 47.
- Pamphlets on the lumber industry. [1900?- url p. 124.
- Pamphlets. MelbourneGovt. Printer, 1918-42. url p. 13.
- Proceedings of the California Academy of Sciences, 4th series. San Francisco, California Academy of Sciences. url p. 75, p. 81.
- Proceedings of the Entomological Society of Washington. Washington, etc.: Entomological Society of Washington url p. 580.
- Proceedings of the Linnean Society of New South Wales. Sydney, Linnean Society of New South Wales. url , , , , , , , , p. 100, p. 104, p. 109, p. 117, p. 12, p. 1215, p. 1281, p. 135, p. 167, p. 172, p. 202, p. 204, p. 208, p. 212, p. 212, p. 214, p. 214, p. 314, p. 316, p. 335, p. 398, p. 400, p. 404, p. 406, p. 431, p. 435, p. 437, p. 44, p. 451, p. 46, p. 473, p. 48, p. 496, p. 498, p. 514, p. 516, p. 579, p. 580, p. 647, p. 685, p. 688, p. 689, p. 695, p. 715, p. 720, p. 760, p. 788, p. 790, p. 846, p. 860, p. 875, p. 91.
- Proceedings of the Royal Society of Victoria. Melbourne: The Society, 1889- url p. 175, p. 322.
- Proceedings of the Royal Zoological Society of New South Wales. Mosman, New South Wales [etc.]The Society. url p. 63.
- Report of the Australian Association for the advancement of Science. Sidney, The Association. url p. 298.
- Report of the Board of Commissioners of Agriculture and Forestry of the Territory of Hawaii for the period. .. Honolulu. url p. 47.
- Report on the forests of British East Africa. LondonPrinted for His Majesty's Stationery Off. by Darling1909 url p. 42.
- Scientific and applied pharmacognosy, intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists. New York, Wiley, 1920. url p. 465.
- Seeds and plants imported / U.S. Department of Agriculture. Washington, D.C.: G.P.O., 1903-1913. url p. 31, p. 51.
- Select extra-tropical plants readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses. Calcutta, Off. of the Superintendent of Government Printing, 1880. url .
- Studies of shade trees in California. 1913. url p. 30.
- The Australian zoologist. Sydney, Royal Zoological Society of New South Wales url p. 344.
- The California horticulturist and floral magazine. San Francisco, Calif.: F.A. Miller & Co., 1870- url p. 358.
- The Emu: official organ of the Australasian Ornithologists' Union. Melbourne: Royal Australasian Ornithologists Union, 1901- url p. 273.
- The Florists' exchange: a weekly medium of interchange for florists, nurserymen, seedsmen and the trade in general. New York, N.Y.: [A.T. De la Mare Ptg. and Pub. Co., url p. 287, p. 607.
- The Gardener's monthly and horticultural advertiser. Philadelphia [Pa.: s.n.1859-1875] url p. 142.
- The Gardeners' chronicle: a weekly illustrated journal of horticulture and allied subjects. London: [Gardeners Chronicle], 1874-1955. url p. 150, p. 26, p. 91.
- The Horticulturist's hand book / edited and compiled by B.R. Jones. Los Angeles: Published by the Board of Supervisors, 1913. url p. 22.
- The Journal of the Department of Agriculture, Victoria. [Melbourne]:Dept. of Agriculture, Victoria, 1902-1955. url p. 416, p. 417, p. 688, p. 724, p. 726.
- The Victorian naturalist. [Melbourne]Field Naturalists Club of Victoria. url p. 102, p. 102, p. 108, p. 108, p. 109, p. 116, p. 127, p. 150, p. 152, p. 153, p. 168, p. 173, p. 175, p. 49, p. 8, p. 85.
- The conquest of the desert / London: T. W. Laurie, [1913] url p. 77.
- The conquest of the desert, by William Macdonald with fifty illustrations. London: T. W. Laurie ltd., [1913] url p. 77.
- The garden beautiful in California; Los Angeles, Cal., Cultivator publishing co., 1915. url p. 39.
- The garden book of California, New York, P. Elder and company[c1906] url .
- The journal of forestry and estates management. London: W. Rider, 1878-1883. url p. 590.
- The organic constituents of plants and vegetable substances and their chemical analysis / by G.C. Wittstein; authorized translation from the German original, enlarged with numerous additions by Baron Ferd. von Mueller. Melbourne: MCarron, Bird & Co., 1878. url p. 148.
- The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States a Illustrated with colored plates, four thousand engravings in the text, and ninety-six full-page cuts. New York, Macmillan, 1919 [c1914] url p. 379, p. 380.
- The useful native plants of Australia, (including Tasmania) by J. H. Maiden. Sydney, Turner and Henderson, 1889. url p. 242, p. 270, p. 321, p. 471.
- The uses of plants: a manual of economic botany with special reference to vegetable products introduced during the last fifty years / by G. S. Boulger. London: Roper & Drowley, 1889. url p. 201.
- Trees: the yearbook of agriculture 1949. Washington, D.C.: U.S. Dept. of Agriculture: 1949. url p. 819, p. 822, p. 923.
- Trees: the yearbook of agriculture, 1949 / the United States Department of Agriculture. Washington, D.C.: United States Government Printing Office, 1949 url p. 819, p. 822, p. 923.
- Wood; a manual of the natural history and industrial applications of the timbers of commerce. LondonE. Arnold1908 url p. 190, p. 77.
- Chang Hung-ta & Miau Ru-hwai. 1984. Myrtaceae. In: Chen Chieh, ed., Fl. Reipubl. Popularis Sin. 53(1): 28-135.
- Chang Hung-ta & Miau Ru-hwai. 1984. Myrtaceae. In: Chen Chieh, ed., Fl. Reipubl. Popularis Sin. 53(1): 28-135.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 11, 2012.
Data Sources
Accessed through GBIF Data Portal January 30, 2008:
- Australian National Herbarium
- , Australian National Herbarium
- Bernice Pauahi Bishop Museum, Bishop Museum Natural History Specimen Data
- USDA PLANTS, USDA PLANTS Database
Identifiers
- Biodiversity Heritage Library NamebankID: 3876502
- Catalogue of Life Accepted Name Code: IOP-455257
- Global Biodiversity Information Facility Taxonkey: 13690896
- Globally Unique Identifier: urn:lsid:ipni.org:names:593359-1
- GRIN Nomen Number: 16030
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 502487
- Natural Heritage Network Species Identifier: PDMRT02080
- U.S.D.A. Plant Symbol: EUSI2
- Zipcode Zoo Species Identifier: 36664
Footnotes
- Jie Chen & Lyn A. Craven "Myrtaceae". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- "Eucalyptus". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Mean = 345.020 meters (1,131.955 feet), Standard Deviation = 393.750 based on 249 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
