Eucalyptus robusta Sm.

Swampmahogany (en), Eucalyptus des marais (fr), Eucalyptus robuste (fr), Gommier robuste (fr)

Species

Angiosperms > Myrtales > Myrtaceae > Eucalyptus l'hér.

Characteristics

Trees, to 20 m tall. Bark dark brown, rough and subfibrous, persistent. Branchlets ridged. Young leaves opposite, petiolate; leaf blade thickly ovate, ca. 11 × 7 cm, leathery. Mature leaves with a 1.5-2.5 cm petiole; leaf blade ovate-lanceolate, 8-17 × 3-7 cm, oblique, thickly leathery, both surfaces glandular, secondary veins numerous, conspicuous, and at an angle of ca. 80° from midvein, intramarginal veins 1-1.5 mm from margin. Inflorescences axillary, simple, umbels 4-8-flowered; peduncle less than 2.5 cm, compressed. Flower buds 1.4-2 × 0.7-1 cm. Hypanthium semiglobose to obconic, 7-9 × 6-8 mm; stipe 0-9 mm, angular; calyptra ± as long as hypanthium, apex constricted into a beak. Stamens 1-1.2 cm; anthers elliptic, dehiscing longitudinally. Capsule pot-shaped, sometimes somewhat constricted in middle, 1-1.5 cm; disk broad; valves 3 or 4, included in hypanthium. Fl. almost year-round.
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Tree to 30 m. Bark rough throughout, soft, spongy, subfibrous, red-brown. Juvenile leaves ovate. Adult leaves broadly lanceolate; lamina 10–16 cm long, 2.7–4.5 cm wide; lateral veins fine, at 50°–60°; intramarginal vein up to 2 mm from margin; petiole 20–35 mm long. Umbels 9–15-flowered; peduncle broadly flattened, 13–30 mm long; pedicels angular, 1–9 mm long, sometimes absent. Buds rostrate or ±fusiform; operculum conical, rostrate, 10–12 mm long, 6–8 mm wide; hypanthium obconical, 6–7 mm long, 6–8 mm wide. Fruits cylindrical, sometimes slightly constricted in the middle, 10–18 mm long, 6–11 mm wide; disc broad, descending; valves 3 or 4, usually included and joined across the orifice, sometimes level or slightly exserted.
Tree to 30 m with red-brown soft spongy subfibrous rough bark throughout.. Juvenile leaves ovate; adult discolorous, broadly [ovate-lanceolate] lanceolate, 10–16[20] cm long, 2.7–4.5[8] cm wide; petiole 2–3.5 mm long.. Umbels 9–15-flowered; peduncle broadly flattened, 1.3–3[3.5] cm long; pedicels angular, 1–9[12] mm long or absent.. Buds rostrate or ± fusiform; operculum conical, rostrate, 10–12 mm long, 6–8 mm wide.. Calyx-tube obconical, 6–7 mm long, 6–8 mm wide.. Fruits cylindrical, [8]10–18 mm long, 6–11[12] mm wide, sometimes slightly constricted in the middle or near apex, with broad descending disc and 3–4 valves usually included and joined across the orifice or flush or slightly exserted.. Fig. 9/35, p. 45.
Umbels mostly axillary, 5–10-flowered; peduncles 2–3 x 0·6 cm., compressed and strap-shaped; pedicels very stout, gradually merging into the receptacle; flower buds c. 2·8 x 0·7 cm. (including the pedicel), fusiform; operculum conoidal-rostrate, at least as long as the receptacle.
A tree. It grows 30 m tall. The bark is rough and fibrous. The fruit are 1.5 cm long by 1 cm wide. They have
Leaves up to 17 x 6 cm., dark green above, pale green beneath, broadly lanceolate, attenuate-acuminate.
Fruit c. 1·5 x 1 cm., cyathiform; valves 3–4, inserted just below the orifice.
Bark rough, subfibrous, persistent throughout.
Tall tree.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread barochory
Mature width (meter) -
Mature height (meter) 30.0
Root system -
Rooting depth (meter) 0.6
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Grows in swampy areas, near lagoons and estuaries, and sometimes on slopes,often in pure stands in open forest.
More
Found mainly in swamps and on the edges of coastal lagoons and rivers where it is subject to periodic flooding.
Found mainly in swamps and on the edges of coastal lagoons and rivers where it is subject to periodic flooding.
It is a tropical plant.
Light 6-8
Soil humidity 2-5
Soil texture 2-6
Soil acidity 2-5
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses afforestation animal food bee plant charcoal dye environmental use essential oil fiber food fuel gum material medicinal ornamental timber wood
Edible -
Therapeutic use Cardiovascular agents (bark), Contraceptive agents (bark), Cardiovascular agents (leaf), Contraceptive agents (leaf), Insect repellents (leaf), Malaria (leaf), Anemia, hemolytic (seed), Abscess (unspecified), Boil (unspecified), Cellulitis (unspecified), Cold (unspecified), Dysentery (unspecified), Erysipelas (unspecified), Flu (unspecified), Mastitis (unspecified), Preventitive (unspecified), Encephalitis (unspecified), Enteritis (unspecified), Gangrene (unspecified), Sore (unspecified), Anesthetic (unspecified), Antiseptic (unspecified), Astringent (unspecified), Colic (unspecified), Diarrhea (unspecified), Disinfectant (unspecified), Spasm (unspecified), Tonic (unspecified), Antifungal agents (unspecified), Hypotension (unspecified), Insecticides (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) 1
Optimum temperature (C°) 16 - 32
Size -
Vigor -
Productivity -

Images

Habit

Eucalyptus robusta habit picture by Nathalie Potel (cc-by-sa)
Eucalyptus robusta habit picture by Lisa Giovannoli (cc-by-sa)

Leaf

Eucalyptus robusta leaf picture by Alain Ravaute (cc-by-sa)
Eucalyptus robusta leaf picture by Nathalie Potel (cc-by-sa)
Eucalyptus robusta leaf picture by Nathalie Potel (cc-by-sa)

Flower

Eucalyptus robusta flower picture by Pascal DUPUIS (cc-by-sa)

Fruit

Eucalyptus robusta fruit picture by Monteiro Henrique (cc-by-sa)
Eucalyptus robusta fruit picture by Raffaella D'Ambra (cc-by-sa)

Distribution

Eucalyptus robusta world distribution map, present in Australia, Bolivia (Plurinational State of), Brazil, China, Cameroon, Cook Islands, Costa Rica, Cuba, France, Micronesia (Federated States of), Equatorial Guinea, Honduras, India, Italy, Sri Lanka, Morocco, Mexico, Myanmar, Mozambique, Mauritius, Nicaragua, New Zealand, Pakistan, Panama, Philippines, Puerto Rico, Portugal, Réunion, El Salvador, Turkey, Taiwan, Province of China, United States of America, Venezuela (Bolivarian Republic of), Viet Nam, and South Africa

Conservation status

Eucalyptus robusta threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:593318-1
WFO ID wfo-0000955809
COL ID 3BQFT
BDTFX ID 25721
INPN ID 97409
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Eucalyptus multiflora Eucalyptus rostrata Eucalyptus multiflora var. bivalvis Eucalyptus robusta var. bivalvis Eucalyptus robusta var. rostrata Eucalyptus robusta

Lower taxons

Eucalyptus robusta var. bivalva