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그루안

Tasmanian Blue Gum, Southern Blue Gum

Eucalyptus globulus · Myrtaceae · 글로불루스유카리

How to spot it

Identified by the clearly different young and adult leaves (waxy opposite young leaves; sickle-shaped hanging adult leaves), four-angled winged young stems, single flowers in the leaf axils, and woody capsules with a recessed ring at the rim.

Look

Leaves
Young leaves are stalkless, opposite on winged stems, elliptic to ovate (up to 15 cm long and 10.5 cm wide) and waxy (glaucous). Adult leaves are stalked, sickle-shaped to lanceolate (15 to 30 x 1.7 to 3 cm) and glossy dark green.
Flowers
White flowers grow in the leaf axils singly, in threes or in sevens. The bud cap (operculum) is flat and knobbed, with a very rough, waxy surface.
Fruit
The fruit is a woody capsule, top-shaped to hemispherical, with 4 to 5 valves at rim level. The seeds are dark brown, flat ellipsoids.
Bark
Smooth apart from fragments remaining at the base; it peels in large strips and plates, yellowish or gray.

Where it grows

Native to
Native to open forest in Tasmania and southern Victoria; depending on subspecies it ranges to the Bass Strait islands and the Great Dividing Range in New South Wales.
Ecology
Grows well where roots reach deep soil moisture or where annual rainfall exceeds 530 mm or fog drip is received; mature trees tolerate drought and brief cold of about -8°C. It resprouts vigorously from the base after felling or damage.

Sources