Eucalyptus citriodora |
Eucalyptus sideroxylon |
|
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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 |
CA; e Australia [Introduced in North America] |
CA; se Australia [Introduced in North America] |
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 | ||
Sibling taxa | ||
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) |
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