Calamus spp. Arecaceae

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Present on Pacific Islands?  yes

Threat only at high elevations?  no

Common name(s): [more details]

Chamorro: bejuko-n-halumtano

English: rattan

Other: rotan, rotan bejuro-n-halumtan

Palauan: bangerenguis ra ngebard

Habit:  vine

Description:  "Shrubs or climbing palms (rattans) with hooks. Leaves pinnate, spiraled, the midrib (in some species) prolonged into a hooked flagella (the cirrus); sheath cylindric, rather long, ligulate at the upper end, sometimes flagellate. Leaflets linear, numerous, sometimes ciliate. Inflorescences unisexual (dioecious), inserted on petiolar sheath, often branched; main axis sometimes prolonged into a flagellate extension. Flowers numerous, in spikelets, female flowers usually beside sterile male flowers. Calyx briefly 3-lobed. Stamens 6, filaments somewhat connate, surrounding (usually) a pistillode. Corolla 3-fid, staminodes 6, ovary 3-celled, in female flowers. Fruit dry, stylose, within a scaly pericarp" (Stone, 1970; p. 137).

Habitat/ecology:  (No habitat/ecology information available.)

Propagation:  Seed

Native range:  (native range not known by PIER)

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 81)
Guam Guam Island	Guam Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 81)
Palau Palau (main island group)	Babeldaob Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 81)
Palau Palau (main island group)	Babeldaob Island		Raulerson, L./Rinehart, A. F./Falanruw, M. C. (1996)
Solomon Islands Solomon Islands	Guadalcanal Island		Bishop Museum (Honolulu) (1956) (voucher ID: BISH 628246) Taxon name on voucher: Calamus (Genus of Arecaceae)
Solomon Islands Solomon Islands	Mikira (San Cristobal) Island		Bishop Museum (Honolulu) (1932) (voucher ID: BISH 102389) Taxon name on voucher: Calamus hollrungii Becc.
Solomon Islands Solomon Islands	Ndeni (Santa Cruz) Island		Bishop Museum (Honolulu) (1972) (voucher ID: BISH 79842) Taxon name on voucher: Calamus (Genus of Arecaceae)
Solomon Islands Solomon Islands	Ndeni (Santa Cruz) Island		Bishop Museum (Honolulu) (1972) (voucher ID: BISH 699253) Taxon name on voucher: Calamus (Genus of Arecaceae)

Additional information:  Additional online information about Calamus spp. is available from the Hawaiian Ecosystems at Risk project (HEAR).

Taxonomic information about Calamus spp. may be available from the Germplasm Resources Information Network (GRIN).

References:

Bishop Museum (Honolulu). 1932. Voucher specimen #BISH 102389 (Brass, L.J. 2719).

Bishop Museum (Honolulu). 1956. Voucher specimen #BISH 628246 (J.L.Gressitt 2734).

Bishop Museum (Honolulu). 1972. Voucher specimen #BISH 79842 (Powell, J.M. 19878).

Bishop Museum (Honolulu). 1972. Voucher specimen #BISH 699253 (Powell, J.M. 19878).

Fosberg, F. R./Otobed, D./Sachet, M.-H./Oliver, R. L./Powell, D. A./Canfield, J. E. 1980. Vascular plants of Palau with vernacular names. Department of Botany, The Smithsonian Institution, Washington, D.C. 43 pp.

Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce. 1987. A geographical checklist of the Micronesian monocotyledonae. Micronesica 20:1-126.

Raulerson, L./Rinehart, A. F./Falanruw, M. C. 1996. A botanical reconnaissance of the proposed Compact-impact road alignment on Babeldaob Island, Republic of Palau. U. of Guam Herbarium Cont. No. 32. 78 pp.

Stone, Benjamin C. 1970. The flora of Guam. Micronesica 6:1-659.