Eucalyptus punctata Dc.

Gray gum (en)

Species

Angiosperms > Myrtales > Myrtaceae > Eucalyptus l'hér.

Characteristics

Trees, to 20 m tall. Bark grayish, smooth, exfoliating. Branchlets terete. Leaf blade of young leaves ovate-lanceolate, ca. 11 × 6 cm, thinly leathery. Mature leaves with a flattened 1.5-2 cm petiole; leaf blade narrowly lanceolate, 10-16 × 2-3 cm, falcate, leathery, both surfaces with black glands, abaxially gray, secondary veins at an angle of ca. 50° from midvein, intramarginal veins ca. 1 mm from margin. Inflorescences axillary, simple, umbels with (4-)7(-10) flowers; peduncle compressed or ridged, 1.5-2 cm. Flower buds long ovate to spindle-shaped, 1-1.3 cm. Hypanthium campanulate, 5-6 × 4-5 mm; stipe 3-5 mm, 2-ridged; calyptra awl-shaped, 6-7 mm, apex acuminate to acute. Stamens 7-9 mm; anthers obovoid, dehiscing longitudinally. Capsule semiglobose to campanulate, 7-10 × 6-8 mm; disk broad; valves (3 or)4(or 5), exserted from hypanthium. Fl. Aug-Oct.
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Tree to 35 m. Bark grey gum type. Juvenile leaves narrowly lanceolate to lanceolate. Adult leaves lanceolate, slightly falcate; lamina 8–15 cm long, 1.6–3 cm wide, shining above; lateral veins just visible, at 45°–55°; intramarginal vein up to 1 mm from margin; petiole channelled or flattened, 15–26 mm long. Umbels 7-flowered; peduncle flattened or angular, 5–20 mm long; pedicels angular, 2–9 mm long. Buds ovoid to cylindrical; operculum conical, hemispherical or slightly rostrate, 5–6 mm long, 4–6 mm wide; hypanthium obconical or hemispherical, 4–5 mm long, 4–6 mm wide. Fruits hemispherical or cylindrical, 5–12 mm long, 5–10 mm wide; disc moderately broad, level or ascending; valves 3 or 4, exserted. Seeds black.
Tree to 35 m with cream to orange, later grey or grey-brown usually smooth matt bark.. Juvenile leaves lanceolate; adult discolorous, lanceolate, slightly falcate, 8–15 cm long, 1.6–3[3.5] cm wide, shining above; petiole channelled or flattened, 1.5–2.6 mm long.. Umbels 7-flowered; peduncle flattened or angular, 0.5–2 cm long; pedicels angular, 2–9[10] mm long.. Buds ovoid to ± cylindrical; operculum conical or hemispherical or slightly rostrate, 5–6 mm long, 4–6 mm wide.. Calyx-tube obconical or hemispherical, 4–5 mm long, 4–6 mm wide.. Fruits hemispherical or cylindrical, 5–12 mm long, 5–10 mm wide with moderately broad level or ascending disc and 3–4 exserted valves.. Fig. 9/32, p. 45.
Tree to 30 m. Bark grey gum type. Juvenile leaves broadly lanceolate. Adult leaves lanceolate; lamina 8–12 cm long, 1.8–2.4 cm wide, discolorous; lateral veins just visible, at 45°–60°; intramarginal vein up to 1 mm from margin; petiole channelled, 15–25 mm long. Umbels 7-flowered, peduncle flattened, 10–20 mm long; pedicels thick, 4–6 mm long. Buds ovoid or clavate; operculum conical or hemispherical, angular, 5–7 mm long, 6–8 mm wide; hypanthium hemispherical, 4–6 mm long, 6–8 mm wide. Fruits hemispherical, 7–9 mm long, 6–9 mm wide; disc broad, level, convex or ascending; valves 3 or 4, exserted. Seeds black.
A medium sized tree. It grows 30 m high. The trunk is straight. The bark is smooth. It has a fairly dense crown of shiny dark green leaves. These are 15 cm long. The flowers are small and white.
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

A widespread plant, it is found in most soils and sites, but mainly on sandy soils and shales in wetter areas. Low hillls and ridges.
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It grows naturally in open forests in SE Australia. It does best on light well-drained soils. It suits hardiness zones 9-11.
Grows on hills and ridges in open forest.
Grows in open forest.
Light 7-9
Soil humidity 1-7
Soil texture 2-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses afforestation dye essential oil fiber food material medicinal ornamental timber wood
Edible saps stems
Therapeutic use -
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°) -
Optimum temperature (C°) 18 - 28
Size -
Vigor -
Productivity -

Images

Eucalyptus punctata unspecified picture

Distribution

Eucalyptus punctata world distribution map, present in Australia, Brazil, China, Sri Lanka, Venezuela (Bolivarian Republic of), Viet Nam, and South Africa

Conservation status

Eucalyptus punctata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:593287-1
WFO ID wfo-0000955715
COL ID 6H6DH
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Eucalyptus biturbinata Eucalyptus punctata Eucalyptus shiressii Eucalyptus punctata var. didyma Eucalyptus punctata var. major Eucalyptus tereticornis var. brachycorys