Eucalyptus crebra F.Muell.

Narrowleaf red ironbark (en)

Species

Angiosperms > Myrtales > Myrtaceae > Eucalyptus l'hér.

Characteristics

Trees, to 25 m tall. Bark dark brown, rough, persistent. Branchlets slender, slightly ridged. Young leaves opposite, shortly petiolate; leaf blade narrowly lanceolate, glaucescent. Mature leaves alternate; petiole 1-2 cm, slender; leaf blade narrowly lanceolate, 8-15 × 1-1.8 cm, twisted, glaucescent, same color on both surfaces, glands inconspicuous, intramarginal veins very near margin. Inflorescences terminal, paniculate, umbels 2-6-flowered; peduncle 7-10 mm, obtusely ridged or terete. Flower buds narrowly spindle-shaped, ca. 6 × 3 mm. Hypanthium hemispheric to obovoid, 2-3 mm; stipe 2-3 mm; calyptra nearly as long as hypanthium, apex slightly acute. Stamens ca. 3 mm, all developed; anthers globular, dehiscing longitudinally. Capsule campanulate, 4-6 × ca. 3 mm; disk narrow; valves 3 or 4, subequaling hypanthium rim to included. Fl. Aug-Sep.
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Tree to 30 m. Bark rough throughout, dark grey to black. Juvenile leaves linear to narrowly lanceolate, green or grey-green, slightly discolorous. Adult leaves narrowly lanceolate to lanceolate, acuminate; lamina 6.5–15 cm long, 1–1.7 cm wide, dull, green or grey-green; lateral veins faint, at 30°–45°; intramarginal vein up to 1 mm from margin; petiole 10–15 mm long. Conflorescence terminal, paniculate; umbels 7–11-flowered; peduncle terete to quadrangular, 4–12 mm long; pedicels 1–6 mm long, with angles sometimes continuous as ribs on hypanthium. Buds clavate or fusiform; operculum conical to hemispherical, 2–3 mm long, c. 3 mm wide; hypanthium hemispherical to obovoid, 2–3 mm long, c. 3 mm wide. Fruits hemispherical or ovoid, 4–7 mm long, 4–6 mm wide; disc narrow, level or descending; valves 3 or 4, ±level to included.
Tree to 30 m. Bark rough on trunk and larger branches or throughout, dark grey to black. Juvenile leaves elliptic to ovate, light green, concolorous. Adult leaves lanceolate to narrowly lanceolate, acuminate; lamina 10–15 cm long, 1.4–2.5 cm wide, green or grey-green; lateral veins faint, at 30°–40°; intramarginal vein up to 1 mm from margin; petiole 10–20 mm long. Conflorescence terminal and axillary, paniculate; umbels 7-flowered; peduncle terete, rarely quadrangular, 4–7 mm long; pedicels 3–6 mm long. Buds obovoid or obconical; operculum hemispherical–conical, c. 3 mm long, c. 4 mm wide; hypanthium obconical, 3–4 mm long, c. 4 mm wide. Fruits hemispherical to subcylindrical, 4–6 mm long, 5–6 mm wide; disc narrow, descending; valves usually 4, level to exserted.
Tree to 30 m with rough dark grey to black ironbark throughout.. Juvenile leaves linear to narrowly lanceolate, adult lanceolate, 5–15 cm long, 1–1.7 cm wide; petiole 1–1.5 cm long.. Umbels 7–11-flowered, arranged in panicles; peduncle terete to quadrangular, 0.4–1.2[1.5] cm long; pedicels 1–6[10] mm long with angles sometimes continuing as ribs on calyx-tube.. Buds clavate or fusiform; operculum hemispherical to conical, 2–3 mm long, ± 3 mm wide.. Calyx-tube hemispherical to ovoid, 2–3 mm long, ± 3 mm wide.. Fruits hemispherical or ovoid, [3]4–7 mm long, [3]4–6 mm wide with narrow level or descending disc and 3–4 ± flush to included valves.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 30.0
Root system -
Rooting depth (meter) 1.5
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Commonly found on country of low relief, in higher rainfall areas it grows on ridges and higher slopes. Found at elevations from sea level to 1,400 metres. Grassy or sclerophyll woodland or forest on shallower or sandy soils of medium fertility.
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Commonly found on country of low relief, in higher rainfall areas it grows on ridges and higher slopes. Found at elevations from sea level to 1,400 metres. Grassy or sclerophyll woodland or forest on shallower or sandy soils of medium fertility.
Grows in sand, sandy loamand clay-loam on plains and low plateaus, in woodland and open woodland.
Grows in sandy and clay-loam soil on rocky slopes in tall openforest.
Light 7-9
Soil humidity 1-5
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses bee plant charcoal environmental use essential oil fuel invertebrate food material timber wood
Edible -
Therapeutic use Anti-bacterial agents (leaf), Antifungal agents (leaf)
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°) 1
Optimum temperature (C°) 26 - 36
Size -
Vigor -
Productivity -

Images

Eucalyptus crebra unspecified picture

Distribution

Eucalyptus crebra world distribution map, present in Australia, Brazil, China, Fiji, Iceland, Mozambique, Pakistan, United States of America, and Viet Nam

Conservation status

Eucalyptus crebra threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:592841-1
WFO ID wfo-0000954740
COL ID 3BPTJ
BDTFX ID -
INPN ID 445825
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Metrosideros salicifolia Eucalyptus crebra Eucalyptus racemosa var. longiflora