Archontophoenix alexandrae

(F.Muell.) H.Wendl. & Drude (1875)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Arecales Family: Arecaceae Genus: Archontophoenix

Alexander palm, Alexandra palm, king palm

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Description

Key Characters:

Growth Form: Unbranched tree.

Stems: Trunk to 30 m tall, to 30 cm diam.

Roots:

Leaves: Leaves simple (appearing compound due to secondary separating of the blade). Spirally arranged. Leaves 10–12, to 4.5 m long, becoming vertically orientated; leaf sheath mid to lime green. Pinnae 60–80 each side of rachis, to 75 cm long. Blades dark green adaxially, silver-grey abaxially; ramenta lacking.

Flowers: Inflorescence to 100 cm long, branched to 4 orders; axes white to creamy green; rachillae to 30 cm long, erect to semipendulous, moderately flexuose distally. Flowers widely spaced on rachilla; floral bracts raised with sharp margins; perianth white to cream. Staminate flower to 9.5 mm long; stamens 9–16; filaments curved; pistillode about equal to petals. Pistillate flower to 4 mm high.

Fruit: Fruit ovoid; 8–14 mm long; 6–11 mm wide; stigmatic remains apical; mesocarp fibres to 1 mm wide; flat; sparingly branched; remaining compact in the dried state. Seeds globose; 8 mm diam.; raphe fibres weakly adherent.

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Images

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Water/Ocean
Birds

Pollinators

Bibliography

Name Published In: Linnaea 39: 212 (1875)

Other References

Wagner et al. 1990:1362 (H); Staples & Herbst 2005:618 (KEY, DESCR); Daehler & Baker 2006:4 (O, DESCR); Oppenheimer 2011:6 (EM)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Archontophoenix alexandrae East Maui, Hana District, N of Puu Hinai Preserved_Specimen Oppenheimer, H.L. 30910 Maui BISH 2009-03-14
2 Archontophoenix alexandrae Oahu Preserved_Specimen Neal, M.C. 58 Oahu BISH
3 Archontophoenix alexandrae Preserved_Specimen Neal, M.C. 57 Oahu BISH
4 Archontophoenix alexandrae Honolulu - Foster Gardens fruit on the ground Preserved_Specimen Neal, M.C. Oahu BISH 1949-09-08
5 Archontophoenix alexandrae Honolulu, King Street, Kamehameha School for Boys Preserved_Specimen Neal, M.C. Oahu BISH 1937-04-01
6 Archontophoenix alexandrae Foster Gardens Preserved_Specimen Neal, M.C. Oahu BISH 1949-12-31
7 Archontophoenix alexandrae Honolulu - Foster Gardens Preserved_Specimen Neal, M.C. Oahu BISH 1952-06-27
8 Archontophoenix alexandrae Honolulu, 4000 Round Top Dr., Moleka trailhead Melaleuca quinquenervia, Bischofia javanica; mesic-wet bottomland forest, disturbed, shady Preserved_Specimen Ray, G. 64 Oahu BISH 1998-01-07
9 Archontophoenix alexandrae East Maui, Hana District, N of Puu Hinai Preserved_Specimen Oppenheimer, H.L. 30910 Maui BISH 2009-03-14
10 Archontophoenix alexandrae Oahu Preserved_Specimen Neal, M.C. 55 Oahu BISH
11 Archontophoenix alexandrae Hawaii Preserved_Specimen Neal, M.C. 28 Hawaii BISH
12 Archontophoenix alexandrae Puna District. 1km W. on Pakaka Rd Preserved_Specimen Annable, C.R. 3740 Hawaii BISH 1998-01-13
13 Archontophoenix alexandrae Puna, 1 km W on Pakaka Road Preserved_Specimen Annable, C.R. 3740 Hawaii BISH 1998-01-13
14 Archontophoenix alexandrae East Maui, Hana District, N of Puu Hinai Preserved_Specimen Oppenheimer, H.L. 30910 Maui BISH 2009-03-14
15 Archontophoenix alexandrae Lyon Arboretum; volunteers in Aroid Valley Preserved_Specimen Nagata, K.M. 523 Oahu BISH 1968-12-19
16 Archontophoenix alexandrae East Maui, Hana District, N of Puu Hinai Preserved_Specimen Oppenheimer, H.L. 30910 Maui BISH 2009-03-14