Eucalyptus polyanthemos Schauer

Redbox (en), Eucalyptus lancéolé (fr)

Species

Angiosperms > Myrtales > Myrtaceae > Eucalyptus l'hér.

Characteristics

Trees, to 22 m tall, d.b.h. to 70 cm. Bark grayish or cream colored, ± smooth, exfoliating throughout or on trunk and larger branches blackish brown, fibrous, and persistent. Branchlets terete. Young leaves opposite; leaf blade rounded, 4-8 × 4-11 cm, glaucescent. Mature leaves with a slender 2-3 cm petiole; leaf blade grayish, ovate-lanceolate to long ovate, 5-14 × 1.5-4.5 cm, with numerous minute glands, secondary veins at an angle of ca. 55° from midvein, intramarginal veins ca. 0.5 mm from margin. Inflorescences terminal or axillary, paniculate, umbels 3-6-flowered; secondary peduncle ca. 7 mm, terete. Flower buds obovoid, ca. 5 × 3 mm. Hypanthium campanulate, ca. 3 mm; stipe 1-2 mm; calyptra shortly awl-shaped, ca. 2 mm, apex slightly acute. Stamens 3-4 mm; anthers truncate capitate, poricidal. Capsule hemispheric, ovoid, or pyriform, 5-6 × 4-5 mm; disk broad; valves 3 or 4, included in hypanthium. Fl. Nov-Dec.
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Tree to 25 m. Bark fibrous, grey-brown on trunk and larger branches, or almost smooth throughout, grey, cream or pink. Juvenile leaves orbicular, emarginate, dull, grey-green, concolorous. Adult leaves ovate to broadly lanceolate, apiculate; lamina 5.5–9 cm long, 1.5–3.5 cm wide, grey or glaucous; lateral veins clearly visible, at 20°–40°; intramarginal vein up to 4 mm from margin; petiole terete or flattened, 15–25 mm long. Conflorescence terminal, paniculate; peduncle terete, 5–10 mm long; pedicels 2–5 mm long. Buds clavate to fusiform, glaucous; operculum conical, 1–2 mm long, c. 2 mm wide; hypanthium obovoid to obconical, c. 3 mm long and wide. Fruits obconical to pyriform, often glaucous, 4–7 mm long, 3–6 mm wide; disc broad.
Tree to 25 m with grey-brown fibrous bark on trunk and larger branches or smooth bark throughout.. Juvenile leaves round, emarginate; adult grey or glaucous, ovate to broadly lanceolate, 5.5–9 cm long, 1.5–3.5 cm wide with intramarginal vein up to 4 mm from the margin; petiole terete or flattened, 1.5–2.5 cm long.. Umbels 7-flowered, in terminal panicles; peduncle terete, 5–10 mm long, pedicels 2–5[7] mm long.. Buds clavate to fusiform, glaucous; operculum conical, 1–2 mm long, ± 2 mm wide.. Calyx-tube obovoid to obconical, ± 3 mm long and wide.. Fruits obconical to pyriform, 4–7 mm long, 3–6 mm wide, often glaucous with broad descending disc and 3–4 included valves.. Fig. 9/31, p. 45.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 2.5
Mature height (meter) 15.0 - 20.0
Root system -
Rooting depth (meter) 1.5
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Woodland on the inland slopes of the Great Dividing Range, usually growing on the harder sites and soils; at elevations from 120-800 metres. Usually on shallow soils on rising ground.
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Grows in stony and gravelly soil on slightslopes and foothills in woodland.
Light 6-8
Soil humidity 2-6
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-10

Usage

Uses afforestation bee plant environmental use essential oil food fuel material medicinal timber wood
Edible roots
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°) -7
Optimum temperature (C°) 16 - 28
Size -
Vigor -
Productivity -

Images

Leaf

Eucalyptus polyanthemos leaf picture by Kenji Liu (cc-by-sa)
Eucalyptus polyanthemos leaf picture by A M (cc-by-sa)
Eucalyptus polyanthemos leaf picture by Kate Kate Peters (cc-by-sa)

Flower

Eucalyptus polyanthemos flower picture by Mick Prendergast (cc-by-sa)
Eucalyptus polyanthemos flower picture by Nick Green (cc-by-sa)

Distribution

Eucalyptus polyanthemos world distribution map, present in Australia, Brazil, China, and United States of America

Conservation status

Eucalyptus polyanthemos threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:593261-1
WFO ID wfo-0000955661
COL ID 3BQDB
BDTFX ID 77241
INPN ID 161108
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Eucalyptus ovalifolia Eucalyptus ovalifolia var. lanceolata Eucalyptus polyanthemos

Lower taxons

Eucalyptus polyanthemos subsp. polyanthemos Eucalyptus polyanthemos subsp. marginalis Eucalyptus polyanthemos subsp. longior