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Eucalyptus sideroxylon

A.Cunn. ex Woolls (1886)

This name is accepted

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

red ironbark

Description

Key Characters:

Growth Form: Trees 10–35 m tall.

Stems: Bark black, rough, hard, furrowed throughout, or at least on trunk and larger branches, upper branches white and smooth.

Roots:

Leaves: Leaves simple. Adult Alternate. Blades lanceolate to narrowly lanceolate, 7–14 cm long, 1.2–1.8 cm wide. Apex acuminate or uncinate. Blades concolorous. Margins entire. Petioles 10–20 mm long. Stipules vestigial or absent.

Flowers: Flowers 3–7 in axillary, simple umbels, peduncles quadrangular or terete (cylindrical), 7 –20 mm long, pedicels quadrangular, 2–15 mm long. buds ovoid, rostrate, 7–11 mm long, 4–5 mm wide. Flowers bisexual (perfect), actinomorphic. Calyx modified into an operculum; operculum conical or rostrate. Stamens numerous, in several whorls; anthers dithecal. Ovary inferior; ovule placentation axile.

Fruit: Fruit ovoid; subglobose; or urceolate; 5–14 mm long; 6–14 mm wide; valves 5–6; included. Seeds numerous.

Ploidy: 2n = 22

Habitat: Planted on Kaua'i; O'ahu; Moloka'i; and Maui; and regenerating both within and near the plantations.

Elevation Range:

Historical Distribution

Accepted Subtaxa (in Hawai'i) (1)

Eucalyptus sideroxylon subsp. sideroxylon

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

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

Dispersal Agents


Pollinators

Bibliography

Name Published In: Proc. Linn. Soc. New South Wales, ser. 2, 1: 859 (1886)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Eucalyptus sideroxylon 3 Miles NW of Waimea Planted, introduced. Preserved_Specimen Large tree 80 ft. in height, 1 ft. diam. Little Jr., E.L. 31087 Hawaii BISH 1976-08-18
2 Eucalyptus sideroxylon 5 miles SE of Pukalani Planted, introuduced. Preserved_Specimen Tree 70 ft. in height. 2 feet. diam. Little Jr., E.L. 31098 Maui BISH 1976-08-24
3 Eucalyptus sideroxylon Kamuela Planted. Preserved_Specimen Tree Height 75 ft. Diam., breast high 12 inches. Bark: hard, thick, deeply furrowed, very dark. Ewart III, G.R. 273 Hawaii BISH 1932-01-30
4 Eucalyptus sideroxylon Paomai, betw Hawaiilanui & Kahue Gulches Preserved_Specimen bark rough and furrowed Oppenheimer, H.L. 41909 Lanai BISH 2019-04-18
5 Eucalyptus sideroxylon Honolulu, Tantalus Preserved_Specimen Flowers dark red. (Not on sheet) 6045 Oahu BISH 1909-11-01
6 Eucalyptus sideroxylon Near Kualapuu Plantation, introduced. Preserved_Specimen Tree 50 ft in height, 1 & 1/2 ft. diam. Little Jr., E.L. 31228 Molokai BISH 1976-09-16
7 Eucalyptus sideroxylon Honolulu, Tantalus Preserved_Specimen Russ, G.W. Oahu BISH 1929-12-01
8 Eucalyptus sideroxylon Honolulu, Tantalus Preserved_Specimen Russ, G.W. Oahu BISH 1929-01-01
9 Eucalyptus sideroxylon Honolulu, Tantalus Preserved_Specimen Russ, G.W. Oahu BISH 1929-12-01
10 Eucalyptus sideroxylon Waiohinu Preserved_Specimen Russ, G.W. Hawaii BISH 1928-01-01
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