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Eucalyptus globulus

Labill. (1800)

This name is accepted

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

baby blue, blue gum, silver-leaved mountain gum, Tasmanian blue gum, tasmanium blue gum

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Description

Key Characters:

Growth Form: Trees 15–70 m tall.

Stems: Bark white, cream, yellow, or gray in patches, smooth throughout, often with accumulated shedding bark near base.

Roots:

Leaves: Leaves simple. Adult Alternate. Blades lanceolate to narrowly lanceolate, 12–28 cm long, 1.2–3 cm wide. Apex acuminate. Blades concolorous. Margins entire. Petioles 20–30 mm long. Stipules vestigial or absent.

Flowers: Flowers 1–7 in axillary, simple umbels, peduncles 0–25 mm long, pedicels 0–8 mm long. buds turbinate to obconical, verrucose, glaucous, 8–27 mm long, 5–17 mm wide. Flowers bisexual (perfect), actinomorphic. Calyx modified into an operculum; operculum low–hemispherical, slightly rostrate. Stamens numerous, in several whorls; anthers dithecal. Ovary inferior; ovule placentation axile.

Fruit: Fruit obconical to hemispherical; glaucous; 5–21 mm long; 6–24 mm wide; valves 3–5; level or exserted. Seeds numerous.

Ploidy: 2n = 20; 22; 28

Habitat: Extensively planted on Kaua'i; O'ahu; Maui; and Hawai'i; spreading or at least regenerating from seed.

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Only found in cultivation

Island Status

Kaua'i Only found in cultivation
O'ahu Only found in cultivation
Lana'i Only found in cultivation
Maui Only found in cultivation
Hawai'i Only found in cultivation

Dispersal Agents

Wind

Pollinators

Bibliography

Name Published In: Voy. Rech. Pérouse 1: 153 (1800)

Other References

Wagner et al. 1990:954 (K, O, M, H); Note: change to K?, 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 globulus Waimea Planted at roadside, introduced. Preserved_Specimen Tree 60 ft., 30 inches diam. Little Jr., E.L. 31071 Hawaii BISH 1976-08-18
2 Eucalyptus globulus 10 miles SE of Pukalani Planted, introduced. Preserved_Specimen Large tree 80 ft., 2 & 1/2 ft. diam. Little Jr., E.L. 31091 Hawaii BISH 1976-08-24
3 Eucalyptus globulus Makawao District, Olinda Dry forest. Preserved_Specimen Woolford, H.A. 66 Maui BISH 1955-12-17
4 Eucalyptus globulus Hawaii Volcanoes National Park, Namakani Paio HUMAN_OBSERVATION Friday, J.B. Hawaii 3/6/2005
5 Eucalyptus globulus Wahiawa, on edge of Dole pineapple field Preserved_Specimen Two branches from one tree: slender lvs. typical, broad lvs. with whitish backs less common. Aldrich, W.W. Oahu BISH 1964-08-14
6 Eucalyptus globulus Kukaiau HUMAN_OBSERVATION Friday, J.B. Hawaii 2/2/2009
7 Eucalyptus globulus Kukaiau HUMAN_OBSERVATION Friday, J.B. Hawaii 3/30/2013
8 Eucalyptus globulus Hilo Forest Reserve, Laupahoehoe Section HUMAN_OBSERVATION Friday, J.B. Hawaii 8/31/2003
9 Eucalyptus globulus Kula Preserved_Specimen Tall tree (about 75 ft. tall, 2 ft. dbh.) with slender, hanging branches. Buds covered with white bloom; flowers white. Bark thin, beige, peeling off in long strips. Herbst, D.R. 788 Maui BISH 1967-12-15
10 Eucalyptus globulus East Maui, Makawao District, Haleakala National Park, Hosmer Grove Preserved_Specimen Gagné, B.H. 3092 Maui BISH 1991-07-17
11 Eucalyptus globulus East Maui, Makawao District, Haleakala National Park, Hosmer Grove Preserved_Specimen Gagné, B.H. 3092 Maui BISH 1991-07-17
12 Eucalyptus globulus unknown Preserved_Specimen Adee, K.T. BISH
13 Eucalyptus globulus Koele Preserved_Specimen Munro, G.C. 357 Lanai BISH 1916-01-05
14 Eucalyptus globulus Haleakala National Park, Hosmer Grove Preserved_Specimen Gagné, B.H. 3092 Maui BISH 1991-07-17
15 Eucalyptus globulus Koele Preserved_Specimen Munro, G.C. 571 Lanai BISH 1916-01-05
16 Eucalyptus globulus Kau: Kapapala Preserved_Specimen Russ, G.W. Hawaii BISH 1927-01-01
17 Eucalyptus globulus Kapapala Preserved_Specimen Russ, G.W. Hawaii BISH 1927-01-01
18 Eucalyptus globulus unknown Preserved_Specimen Adee, K.T. BISH
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