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Eucalyptus amplifolia subsp. amplifolia


Cabbage gum

Eucalyptus amplifolia Naudin, Descr. Emploi Eucalyptus introd. Europe 28 (1891) subsp. amplifolia

T: cultivated Du bois de Boulogne, Algeria, C.Naudin s.n.; syn: P; cultivated Cannes, France, C.Naudin s.n.; syn: P; cultivated Jardin du Riou, Cannes, Frances, 14 Sept. 1880, C.Naudin s.n.; syn: P; cultivated Jardin du Riou, Cannes, France, 21 Oct. 1882, C.Naudin s.n.; syn: P; Garden of M.Ricasola, Florence, Italy, collector unknown s.n.; syn: P.


Tree to 30 m tall. Bark smooth throughout or with loose greyish slabs persistent at base of trunk, smooth bark becoming granular on trunk with age, blotchy white, cream, yellow, grey, brown, pink or blue-grey. Juvenile stem square in cross section and prominently winged on younger growth; juvenile leaves held conspicuously horizontal, opposite for a few nodes then alternate, petiolate, orbicular, ovate or deltoid, 5-22 cm long, 3.5-18 cm wide, margin entire or crenulate, green and glossy. Adult leaves alternate, petiolate, broadly lanceolate to lanceolate or falcate, 7.5-25 cm long, 1.6-7 cm wide, sometimes slightly undulate, base tapering evenly to petiole, margin entire, concolorous, glossy or dull, green, weakly penniveined, moderately to densely reticulate, intramarginal vein parallel to and just within margin or well removed from it, oil glands numerous, mostly island. Inflorescences axillary unbranched, peduncles 0.5-1.8 cm long, 7- to ?15-flowered; buds pedicellate, narrowly ovoid, yellow or creamy, scar present, operculum conical to horn-shaped much longer than hypanthium, stamens erect, anthers cuboid to oblong, versatile, dorsifixed, dehiscing by longitudinal slits (non-confluent), style long, locules 3 or 4, the placentae each with 6 vertical ovule rows; flowers white. Fruit pedicellate, hemispherical, 0.4-0.6 cm wide, disc raised, valves 3 or 4, strongly exserted. Seed dark brown, black or grey, 0.7-1.5 mm long, pyramidal or cuboid, dorsal surface pitted, hilum terminal.


NOTES

E. amplifolia is a small to medium-sized red gum tree of subcoastal and tableland areas of New South Wales extending into Queensland. It belongs to the black, toothed, single-coated seed group. It is notable in the group for having large orbicular to deltoid, very glossy green juvenile leaves which are held, in the seedling, horizontally for more nodes than in the other red gums. There are two subspecies:

subsp. amplifolia (Latin amplus, large, of the leaves) occurs from the Nowra district north to the northern tablelands of New South Wales. It has pedicellate buds and fruit.

subsp. sessiliflora (Latin sessiliflora, flowers without stalks) has smaller buds and fruits than the typical subspecies, and they are usually more tightly clustered because the pedicel is very short or absent. It occurs from east of Armidale to east of Tenterfield in New South Wales and adjacent areas of far south-eastern Queensland.

USES

Honey.


DISTRIBUTION