Eucalyptus exserta F.Muell.

Species

Angiosperms > Myrtales > Myrtaceae > Eucalyptus l'hér.

Characteristics

Trees, 15-18 m tall. Bark on trunk and larger branches grayish brown, rough, persistent but gray; bark smaller branches smooth. Branchlets obtusely ridged, slender, usually pendulous. Young leaves opposite, shortly petiolate; leaf blade narrowly lanceolate, less than 1 cm wide. Mature with a slender ca. 1.5 cm petiole; leaf blade narrowly lanceolate, 8-15 × 1-1.5 cm, slightly twisted, both surfaces with numerous minute black glands, secondary veins at an abrupt angle of 35°-40° from midvein, intramarginal veins very near margin. Inflorescences axillary, simple, umbels 3-8-flowered; peduncle 4-20 mm, terete. Flower buds long ovate, 8-10 mm. Hypanthium semiglobose, 2.5-3 × ca. 4 mm; stipe 0-4 mm; calyptra long conic, 5-7 mm, apex acuminate. Stamens 6-7 mm; anthers parallel, dehiscing longitudinally. Capsule subglobose, 6-7 mm in diam.; disk broad; valves 4, strongly exserted from hypanthium. Fl. May-Sep.
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Tree to 25 m. Bark rough, fibrous, hard, with longitudinal fissures on trunk and larger branches, then smooth and grey above. Juvenile leaves linear, green, concolorous. Adult leaves narrowly lanceolate to lanceolate, acute or acuminate, thin; lamina 8–18 cm long, 0.7–1.7 cm wide, slightly shining, green; lateral veins at 30°–40°; intramarginal vein up to 1 mm from margin; petiole terete or slightly flattened, 10–20 mm long. Umbels 7-flowered; peduncle thick, angular, 4–20 mm long; pedicels absent or angular, to 5 mm long. Buds ovoid or fusiform; operculum conical, 5–9 mm long, 4–6 mm wide; hypanthium obconical, 2–3 mm long, 4–6 mm wide. Fruits ovoid or subglobular, 5–8 mm long, 4–9 mm wide; disc broad, steeply ascending; valves usually 4, strongly exserted. Seeds brown-black.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 15.0 - 20.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Coastal lowlands, hill slopes, gentle undulated country and on low stony rises, usually on infertile soils; at elevations up to 900 metres.
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Grows in open forest andwoodland on some alluvial coastal areas and on low hills.
Light 7-9
Soil humidity 1-5
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses bee plant environmental use essential oil fuel material medicinal timber wood
Edible -
Therapeutic use Anti-bacterial agents (leaf), Antifungal agents (leaf)
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°) -
Optimum temperature (C°) 20 - 30
Size -
Vigor -
Productivity -

Images

Eucalyptus exserta unspecified picture

Distribution

Eucalyptus exserta world distribution map, present in Australia, Brazil, China, and Viet Nam

Conservation status

Eucalyptus exserta threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:592919-1
WFO ID wfo-0000954906
COL ID 3BPX7
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Eucalyptus insulana Eucalyptus exserta var. parvula Eucalyptus exserta