Pacific Island Ecosystems at Risk (PIER)

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Metrosideros excelsa
Solander ex J. Gaertner, Myrtaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  High risk, score: 6.5 (Go to the risk assessment)

Other Latin names:  Metrosideros tomentosa A. Rich.

Common name(s): [more details]

English: New Zealand Christmas tree

Maori (NZ): pohutukawa

Habit:  tree

Description:  "Tree up to 20 m. tall; trunk up to 2 m. diameter; branches spreading; branchlets stout, tomentose. Leaves on short stout petioles; lamina (2.5)-5-10 x 2.5-3-5 cm., elliptic to oblong, acute or obtuse, coriac., thick, clad in white tomentum below (young plants occasionally glabrous below). Inflorescence of broad compound cymes with many flowers; pedicels stout, tomentose. Receptacle obconic; sepals deltoid; petals crimson, oblong. Stamens many, crimson, 3-4 cm. long. Ovary adnate to receptacle. Capsules 7-9 mm. long, tomentose, distinctly exserted, loculicidally 3-valved"  (Allan, 1982; p. 325).

Habitat/ecology:  "In South Africa this species is invading hygrophilous fynbos (fynbos on moist peaty soils).  Moist conditions are necessary for seed germination and establishment" (SABONET).

Propagation:  Produces large quantities of wind-borne seed (SABONET).

Native range:  New Zealand (Allan, 1982; p. 325).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
State of Hawaii
Hawaiian Islands
O‘ahu Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (1932) (voucher ID: BISH 60393)
Taxon name on voucher: Metrosideros excelsa
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
New Zealand
New Zealand
New Zealand (country) native
Allan, H. H. (1982) (p. 325)


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This page was created on 26 FEB 2008 and was last updated on 21 OCT 2011.