Eucalyptus globulus Labill.

Blue gum (en), Gommier bleu (fr), Eucalyptus à fruits globuleux (fr)

Species

Angiosperms > Myrtales > Myrtaceae > Eucalyptus l'hér.

Characteristics

Large or very large tree; bark rough towards base but peeling in long strips to give a mottled grey and whitish upper trunk and branches. Juvenile lvs opposite for many pairs, sessile, to 20-(40) × 10-(16) cm, glaucous, ovate, prominently amplexicaul and cordate. Adult lvs with stout petiole to c. 4 cm long; lamina 11-25 × 2-4.5 cm, lanceolate, markedly falcate, coriaceous, glaucescent and concolorous, with distinct marginal vein 1-3 mm from margin; lateral veins diverging at 45-60° from midrib; base symmetric or somewhat oblique; apex acuminate. Fls axillary, nearly always solitary, sessile or pedicels short and strongly ribbed. Buds to c. 2.8 × 2.5 cm, strongly verrucose, glaucous-white; operculum < the quadrangular hypanthium, flattened except for short beak in centre. Stamens white; anthers oblong, with a prominent globular connective gland. Fr. subsessile, generally c. (1)-1.5 × (2)-2.5 cm, hemispheric, truncate or somewhat convex, 4-ribbed, glaucous, ± warty; valves 4-5, level with calyx tube apex; disc large, ascending, broad.
More
Trees, large. Bark grayish blue, smooth, exfoliating. Branchlets slightly ridged. Young leaves opposite, sessile; leaf blade ovate, glaucescent, base cordate. Mature leaves with a slightly flattened 1.5-3 cm petiole; leaf blade lanceolate, 15-30 × 1-2 cm, falcate, leathery, both surfaces glandular, secondary veins at an angle of 35°-40° from midvein and inconspicuous, intramarginal veins ca. 1 mm from margin. Inflorescences axillary, simple, umbels 1-or 7-flowered; peduncles flattened or terete. Hypanthium obconic, ca. 1 × 1.3 cm, surface with 4 ridges and rugose protuberances, glaucescent; stipe 0-5 mm; calyptra slightly flattened, with a conic tubercle in middle, shorter than calyx tube, in 2 layers with outer layer glossy and caducous. Stamens 0.8-1.3 cm, in several whorls; filaments slender; anthers elliptic. Style 7-8 mm, stout. Capsule semiglobose, 0.6-2.4 cm in diam., 4-ridged; disk broad; valves 3-5, equaling hypanthium rim or exserted. Fl. Dec-May, fr. winter.
Tree 30–70 m tall with bark flaking off to reveal smooth white to cream, yellow or grey surface save at extreme base of trunk.. Juvenile leaves opposite, sessile and amplexicaul [ovate-oblong, cordate]; adult leaves lanceolate, 12–25 cm long, 1.7–3 cm wide, thick; petiole channelled or flattened, 2–3[–3.5] cm long.. Flowers solitary in leaf-axils (rarely in threes). Peduncle 0–6 mm long, compressed; pedicels absent or very short; buds turbinate to obconic, glaucous and warty; operculum flattened hemispherical, 0.7–1.5 cm long, 1.4–1.7 cm wide with prominent umbo.. Calyx-tube obconical, 1–1.2 cm long, 1.4–1.7 cm wide, ribbed.. Fruits obconic to hemispherical or subglobular, glaucous, 1–2.1 cm long, 1.4–2.4 cm wide with 3–5 flush or included valves; disc broad, level to ascending.. Fig. 6/15, p. 35.
Trees, usually to 45 m high, sometimes to 70 m. Bark usually smooth, white to cream, yellow or grey, but accumulated grey-brown, undecorticated bark at the trunk base. Juvenile leaves opposite, sessile, amplexicaul, ovate, grey-green to glaucous, discolorous. Adult leaves lanceolate to narrowly lanceolate, sometimes falcate, acuminate, green, concolorous. Umbels 1-, 3-or 7-flowered; peduncles flattened or terete; pedicels present or absent. Buds turbinate to obconical, warty glaucous; operculum flattened hemispherical, shortly umbonate; hypanthium obconical, ribbed or ± smooth. Fruits obconical to hemispherical or subglobular, glaucous or not; disc broad, level to ascending; valves 3–5, level or exserted. [For more recent description see subspecies profiles-Editor]
A spreading tree. It grows 15-50 m high. It spreads 10-25 m wide The bark is smooth and light yellow or grey. It sheds in strips. The inner bark is light green or brown. The young stems are square and the young leaves clasp the stems. They are oval and 15 cm long. The adult leaves are sickle shaped leaves 10-30 cm long. The flowers occur singly and are white to cream.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread barochory
Mature width (meter) 7.0 - 11.5
Mature height (meter) 44.5 - 48.8
Root system -
Rooting depth (meter) 1.55
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Damp marshy areas on moist loams and clays. Found in hilly country or moist valleys in deep rich soils.
More
Damp marshy areas on moist loams and clays. Found in hilly country or moist valleys in deep rich soils.
It is a temperate plant. Arboretum Tasmania.
Light 7-9
Soil humidity 3-7
Soil texture 2-6
Soil acidity 3-6
Soil nutriment -
Hardiness (USDA) 9-10

Usage

An essential oil distilled from the fresh or dried leaves. It is used to flavour candies, baked goods, ice cream and baked goods. Caution: Eucalyptus oil is poisonous. The fruit (seeds?) are used for a drink in Spain.
Uses afforestation animal food charcoal dye environmental use essential oil fiber food fuel gum invertebrate food material medicinal oil poison social use timber wood
Edible leaves
Therapeutic use Malaria (aerial part), Edema (bark), Headache (bark), Malaria (bark), Periodontal diseases (bark), Toothache (bark), Anti-bacterial agents (fruit), Scalp dermatoses (fruit), Anti-bacterial agents (leaf), Antifungal agents (leaf), Anti-infective agents, local (leaf), Anti-inflammatory agents (leaf), Antipyretics (leaf), Antirheumatic agents (leaf), Antiviral agents (leaf), Arthralgia (leaf), Asthma (leaf), Back pain (leaf), Bronchitis (leaf), Burns (leaf), Common cold (leaf), Cough (leaf), Cystitis (leaf), Dandruff (leaf), Digestive system diseases (leaf), Disinfectants (leaf), Dyspnea (leaf), Edema (leaf), Expectorants (leaf), Fever (leaf), Flatulence (leaf), Headache (leaf), Helminthiasis (leaf), Insect repellents (leaf), Insecticides (leaf), Counterirritant (leaf), Malaria (leaf), Migraine disorders (leaf), Mosquito control (leaf), Neuralgia (leaf), Ointments (leaf), Osteoarthritis (leaf), Pain (leaf), Parasympatholytics (leaf), Pharyngitis (leaf), General tonic for rejuvenation (leaf), Respiratory tract diseases (leaf), Rhinitis (leaf), Sinusitis (leaf), Skin diseases (leaf), Spasm (leaf), Sprains and strains (leaf), Tuberculosis (leaf), Tuberculosis, pulmonary (leaf), Ulcer (leaf), Urination disorders (leaf), Urticaria (leaf), Wound healing (leaf), Urethral diseases (leaf), Diaphoretic (leaf), Dysentery, amebic (plant exudate), Wounds and injuries (plant exudate), Anti-infective agents, local (root), Cathartics (root), Anti-inflammatory agents (stem), Toothache (stem), Antimalaria (unspecified), Antiseptic (unspecified), Arthritis (unspecified), Asthma (unspecified), Astringent (unspecified), Boil (unspecified), Bronchitis (unspecified), Burn (unspecified), Cancer (unspecified), Catarrh (unspecified), Cough (unspecified), Deodorant (unspecified), Diabetes (unspecified), Diaphoretic (unspecified), Diphtheria (unspecified), Expectorant (unspecified), Febrifuge (unspecified), Fever (unspecified), Inhalant (unspecified), Repellant(Insect) (unspecified), Laryngitis (unspecified), Malaria (unspecified), Miasma (unspecified), Purgative (unspecified), Respiratory (unspecified), Rhinitis (unspecified), Sore (unspecified), Spasm (unspecified), Stimulant (unspecified), Throat (unspecified), Tuberculosis (unspecified), Vermifuge (unspecified), Antiperiodic (unspecified), Flu (unspecified), Anodyne (unspecified), Bitter-Principle (unspecified), Cold (unspecified), Dysentery (unspecified), Hemostat (unspecified), Inflammation (unspecified), Phthisis (unspecified), Suppurative (unspecified), Tumor(Breast) (unspecified), Wound (unspecified), Analgesics (unspecified), Anthelmintics (unspecified), Anti-bacterial agents (unspecified), Antifungal agents (unspecified), Anti-infective agents, local (unspecified), Antinematodal agents (unspecified), Antioxidants (unspecified), Antipyretics (unspecified), Antirheumatic agents (unspecified), Appetite stimulants (unspecified), Astringents (unspecified), Burns (unspecified), Cardiotonic agents (unspecified), Cardiovascular agents (unspecified), Common cold (unspecified), Diarrhea (unspecified), Digestive system diseases (unspecified), Diuretics (unspecified), Dyspepsia (unspecified), Dyspnea (unspecified), Enterobius (unspecified), Erysipelas (unspecified), Expectorants (unspecified), Flatulence (unspecified), Halitosis (unspecified), Headache (unspecified), Heart diseases (unspecified), Hoarseness (unspecified), Hypohidrosis (unspecified), Insect repellents (unspecified), Insecticides (unspecified), Counterirritant (unspecified), Liver diseases (unspecified), Mosquito control (unspecified), Oral ulcer (unspecified), Osteoarthritis (unspecified), Pain (unspecified), Periodontitis (unspecified), Respiratory tract diseases (unspecified), Respiratory tract infections (unspecified), Sinusitis (unspecified), Skin diseases (unspecified), Suppuration (unspecified), Ulcer (unspecified), Urinary tract infections (unspecified), Urination disorders (unspecified), Whooping cough (unspecified), Wounds and injuries (unspecified), Reduced salivation (unspecified), Anti-infective agents, local (whole plant), Antirheumatic agents (whole plant), Burns (whole plant), Disinfectants (whole plant), Malaria (whole plant), Mosquito control (whole plant), Bronchitis (wood), Disinfectants (wood), Inhalation (wood), Respiratory tract infections (wood)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -6
Optimum temperature (C°) 18 - 23
Size -
Vigor -
Productivity -

Images

Habit

Eucalyptus globulus habit picture by Dieter Albrecht (cc-by-sa)
Eucalyptus globulus habit picture by Sergio-OMA (cc-by-sa)
Eucalyptus globulus habit picture by Alain Caizergue (cc-by-sa)

Leaf

Eucalyptus globulus leaf picture by ssaevan (cc-by-sa)
Eucalyptus globulus leaf picture by Gómez Félix (cc-by-sa)
Eucalyptus globulus leaf picture by Monteiro Henrique (cc-by-sa)

Flower

Eucalyptus globulus flower picture by Monteiro Henrique (cc-by-sa)
Eucalyptus globulus flower picture by Nathan Torres (cc-by-sa)
Eucalyptus globulus flower picture by Denis Bastianelli (cc-by-sa)

Fruit

Eucalyptus globulus fruit picture by diez miguel (cc-by-sa)
Eucalyptus globulus fruit picture by María Larios (cc-by-sa)
Eucalyptus globulus fruit picture by Nathan Torres (cc-by-sa)

Distribution

Eucalyptus globulus world distribution map, present in Australia, Brazil, China, France, New Zealand, Pakistan, Thailand, and United States of America

Conservation status

Eucalyptus globulus threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:592965-1
WFO ID wfo-0000954998
COL ID 3BPZ6
BDTFX ID 75119
INPN ID 97401
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Eucalyptus pulverulenta Eucalyptus maidenii subsp. globulus Eucalyptus globulus

Lower taxons

Eucalyptus globulus subsp. bicostata Eucalyptus globulus subsp. globulus Eucalyptus globulus subsp. maidenii Eucalyptus globulus subsp. pseudoglobulus