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Eucalyptus saligna

Sm. (1797)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Myrtales Family: Myrtaceae Genus: Eucalyptus

blue gum, flooded gum, saligna eucalyptus, Sydney blue gum

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Description

Key Characters:

Growth Form: Trees 30–55 m tall.

Stems: Bark white to bluish gray, smooth throughout, or rough and flaky from base of trunk up to 4 m.

Roots:

Leaves: Leaves simple. Adult Alternate. Blades lanceolate, 9–17 cm long, 2–3 cm wide. Apex acuminate. Blades discolorous. Margins entire. Petioles 15–25 mm long. Stipules vestigial or absent.

Flowers: Flowers 7–11 in axillary, simple umbels, peduncles 4–18 mm long, pedicels 0–3 mm long. buds fusiform to subovoid, 5–7 mm long, 3–4 mm wide. Flowers bisexual (perfect), actinomorphic. Calyx modified into an operculum; operculum conical. Stamens numerous, in several whorls; anthers dithecal. Ovary inferior; ovule placentation axile.

Fruit: Fruit cylindrical; campanulate; or subpyriform; 5–8 mm long; 4–7 mm wide; valves 3–4; exserted; out–curved. Seeds numerous.

Ploidy: 2n = 22

Habitat: Extensively planted on Kaua'i; O'ahu; Molokai; Maui; and Hawai'i; and regenerating from seed in these areas.

Elevation Range:

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Only found in cultivation
Molokai Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Wind
Forestry

Pollinators

Bibliography

Name Published In: Trans. Linn. Soc. London 3: 285 (1797)

Other References

Wagner et al. 1990:958 (K, O, Mo, M, H); Staples & Herbst 2005:420 (KEY), 422 (DESCR); Note: change to O?, no nat. spms., Apr 2025

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Eucalyptus saligna Kualapuu Preserved_Specimen Smooth light-colored bark; flaky. Munro, G.C. 113 Molokai BISH 1927-06-28
2 Eucalyptus saligna Honolulu; Nuuanu Preserved_Specimen Russ, G.W. Oahu BISH 1929-12-01
3 Eucalyptus saligna Makawao Reserve Preserved_Specimen Inciong, H. 1 Maui BISH 1960-04-28
4 Eucalyptus saligna Kapapala Preserved_Specimen Russ, G.W. Hawaii BISH 1928-01-01
5 Eucalyptus saligna Parker Ranch, below Waikiii Plantation; good form. Big grove 1/2 way Waikii Rd. Preserved_Specimen Height 35 ft. Diam. Breast high 6 inches; deciduous except hard non-fibrous plates lower 3 feet. Ewart III, G.R. 157 Hawaii BISH 1932-01-12
6 Eucalyptus saligna Eastern Hawaii; Hamakua Forest Preserve, Honokaia Section, 30 miles NW of Hilo In Plantation, introduced. Preserved_Specimen Large tree to 120 ft., 34 in. diam. Little Jr., E.L. 31070 Hawaii BISH 1976-08-18
7 Eucalyptus saligna East Maui, Kamaole, Kula FR Spreading in and around Forestry plantings. Preserved_Specimen Oppenheimer, H.L. 50706 Maui BISH 2007-05-03
8 Eucalyptus saligna Kalaupapa National Historical Park; Waikolu; upper western edge of valley Preserved_Specimen Tree Wysong, M.L. 466 Molokai BISH 2004-11-22
9 Eucalyptus saligna East Maui, Makawao Forest Rserve, Waikamoi Flume Rd Koa-Ohia mesic forest. Preserved_Specimen Tree to 12m; stamens white. Annable, C.R. 3232 Maui BISH 1997-01-09
10 Eucalyptus saligna Hale Pohaku, Mauna Kea, Hamakua District Preserved_Specimen Planted tree 40' tall with brown and white peeling bark. Cuddihy, L.W. 896 Hawaii BISH 1981-10-06
11 Eucalyptus saligna Hakalau; experimental mixed species stand HUMAN_OBSERVATION Friday, J.B. Hawaii 10/21/2002
12 Eucalyptus saligna Hakalau HUMAN_OBSERVATION Friday, J.B. Hawaii 10/21/2002
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