The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

lemon-scented gum

red iron bark

Habit Trees, to 35 m; trunk golden becoming tan, straight, slender, graceful, smooth; bark shed in irregular pieces. Trees, to 25 m; trunk dark brown or ± black, rough; bark persistent, deeply furrowed, hard.
Leaves

lemon-scented;

petiole 1–2 cm;

blade green, lanceolate, often falcate, 10–20 × 1–2 cm.

petiole 1–2 cm;

blade dull grayish green or blue-green, lanceolate, 6–14 × 1–2 cm.

Inflorescences

3–5-flowered, umbels in panicles.

3–7-flowered, umbels, often pendent.

Peduncles

terete, 1–1.5 cm.

subterete, 1–1.5 cm.

Flowers

hypanthium hemispheric, 5–6 mm, length more than calyptra;

calyptra mostly rostrate;

stamens white.

hypanthium ovoid to hemispheric, 4–6 mm, length greater than calyptra, occasionally glaucous;

calyptra conic;

stamens white, pink, or red;

anthers absent on outer filaments.

Capsules

urn-shaped, to 15 mm, not glaucous;

valves 3 or 4, included.

ovoid, 10 mm, glaucous or not;

valves 4 or 5, included.

2n

= 22, 44.

Eucalyptus citriodora

Eucalyptus sideroxylon

Phenology Flowering winter–spring. Flowering spring.
Habitat Disturbed areas. Disturbed coastal, urban areas.
Elevation 0–300 m. (0–1000 ft.) 0–200 m. (0–700 ft.)
Distribution
from FNA
CA; e Australia [Introduced in North America]
from FNA
CA; se Australia [Introduced in North America]
[BONAP county map]
Discussion

Eucalyptus citriodora is often treated as Corymbia citriodora; it is found only in southern coastal and urban areas and is commonly cultivated.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

In the flora area, Eucalyptus sideroxylon is known from southern California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 10. FNA vol. 10.
Parent taxa Myrtaceae > Eucalyptus Myrtaceae > Eucalyptus
Sibling taxa
E. camaldulensis, E. cladocalyx, E. conferruminata, E. coolabah, E. globulus, E. grandis, E. mannifera, E. polyanthemos, E. pulchella, E. robusta, E. sideroxylon, E. tereticornis, E. torelliana, E. viminalis
E. camaldulensis, E. citriodora, E. cladocalyx, E. conferruminata, E. coolabah, E. globulus, E. grandis, E. mannifera, E. polyanthemos, E. pulchella, E. robusta, E. tereticornis, E. torelliana, E. viminalis
Synonyms Corymbia citriodora, E. maculata var. citriodora
Name authority Hooker in T. L. Mitchell: J. Exped. Trop. Australia, 235. (1848) A. Cunningham ex Woolls: Proc. Linn. Soc. New South Wales, ser. 2, 1: 859. (1887)
Web links