The Eucalypts
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Eucalyptus sideroxylon

Eucalyptus sideroxylon A. Cunn. ex Woolls, Proc. Linn. Soc. New South Wales 11: 859 (1886).
TYPE: New South Wales, near Mt. Caley, Lachlan R., A. Cunningham 205, 3 Jun 1817 (holo K, iso BM). No type was cited. Woolls is effectively publishing Cunningham's name, and the type may be considered to be the collection referred to by Cunningham in Mitchell (p.339).
Eucalyptus leucoxylon var. minor Benth., Fl. Austral. 3: 210 (1867).
TYPE: New South Wales, Parramatta, W. Woolls (lecto K, fide Johnson 1962). Cited as "Parramatta (sic), Woolls; also several of the S. Australian specimens, "White Gum", Behr".
Eucalyptus leucoxylon var. pallens Benth., Fl. Austral. 3: 210 (1867).
TYPE: New South Wales, New England, C. Stuart (holo K ?, iso MEL ?).
Eucalyptus sideroxylon var. rosea Rehder in L. Bailey, Cycl. Amer. Hort. 2: 552 (1900).
TYPE:


Habit: Tree, Height to 35 m high.
Bark: Bark persistent to smaller branches, "ironbark", red-brown to brown-black, white or grey (above), shedding in short ribbons. Branchlets green. Pith glands absent; Bark glands absent. Cotyledons obreniform (bilobed).
Leaves: Intermediate leaves disjunct early, broad lanceolate or ovate, falcate or straight, entire, dull green or dull grey green or glaucous, petiolate, 5–10 cm long, 2–5 mm wide. Adult leaves disjunct, lanceolate, not falcate, acute, basally tapered, dull, green or grey-green, thick, concolorous, 7–14 cm long, 1.2–1.8 mm wide; Petioles 10–20 mm long. Lateral veins prominent or obscure, acute, widely spaced.
Inflorescences: Conflorescence simple, axillary; Umbellasters 7-flowered, regular. Peduncles narrowly flattened or angular (to 3mm wide), 7–20 mm long. Pedicels terete, 2–15 mm long.
Flowers: Buds ovoid to clavate to fusiform (short), glaucous to not glaucous or pruinose, 7–12 mm long, 4–6 mm diam. Calyx calyptrate; persisting to anthesis. Calyptra conical or rostrate, 1 times as long as hypanthium, narrower than hypanthium; smooth. Hypanthium smooth. Flowers white, or cream, or yellow, or pink, or red.
Fruits: Fruits globose or hemispherical or ovoid, pedicellate, 5 locular, 5–11 mm long, 5–9 mm diam. Disc depressed. Valves enclosed. Chaff dimorphic, linear and cuboid, chaff same colour as seed.

Occurrence: Widespread ands locally abundant; sclerophyllous woodland on lighter; poorer soils.
Distribution: Qld, or N.S.W., or Vic. N.S.W. regions North Coast, or Central Coast, or North Western Slopes, or Central Western Slopes, or South Western Slopes, or North Western Plains, or South Western Plains.

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