Tasmanian Blue Gum

Eucalyptus globulus Myrtaceae

Other names

Blue Gum

Growth habit

Tree

Perennation

Cultivated as annual

Native distribution

Nsw, Victoria, Tasmania

Biocultural value

Leaves yield a powerfully antiseptic, aromatic medicinal oil.

Location

Robison Herb Garden

Source of plant

Richters

Description

Trees, usually to 45m, sometimes to 70m. Bark usually smooth, white to cream, yellow or grey but accumulated grey-brown, undecorticated bark at the trunk base. Juvenile leaves perfoliate to ovate, opposite, sessile amplexicaul, grey-green to glaucous, discolorous; adult leaves 12-25 x 1.7-3cm, lanceolate to narrowly lanceolate, sometimes falcate, acuminate, green, concolorous, intramarginal vein to 2mm from margin. Conflorescences axillary, simple; umbels 1-, 3-, or 7-flowered; peduncles flattened or terete; pedicels present or absent; buds turbinate to obconical, warty, glaucous, solitary or in threes or sevens. Fruit obconical to hemispherical or subglobose, usually glaucous, 10-21x14-24mm.

USDA Hardiness Zone

9

Special characteristics

foliage characteristics, tender perennial, medicinal/pharmaceutical