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This species is accepted, and its native range is Papua New Guinea.
A specimen from Kew's Herbarium


CATE Araceae, 17 Dec 2011.

Disturbed mixed forest on slope
General Description
Moderate, slightly robust, semi-leptocaul, homeophyllous neotenic liane to unknown ultimate height; seedling stage and pre-adult plants not observed; LEAVES: adult shoot architecture comprised of clinging, physiognomically unbranched, densely leafy, sterile stems, and clinging, leafy flowering stems; stems terete in cross-section, smooth, without prophyll, cataphyll and petiolar sheath remains, internodes to 5 x 0.75 cm, separated by slightly swollen nodes with + sloping scars, older stems sub-woody; flagellate foraging stems not observed; clasping roots arising sparsely from the internodes, smooth to very slightly pubescent; feeding roots not observed; leaves distichous, those on adherent shoots weakly shingling to slightly scattered, those on free shoots pendent to slightly spreading; cataphylls and prophylls membranous, caducous; petiole shallowly and broadly grooved, 1-4 x 0.1-0.2 cm, smooth, apical and basal genicula quite prominent; petiolar sheath prominent, membranous, ligulate, ligule extending c. 1.5 cm beyond apical geniculum, soon drying and adhering to stem, later disintegrating and falling; lamina ovate, adaxially mid-green, abaxially paler, very stiffly coriaceous, 2.5-8.5 x 0.9-4 cm, base cordate to rounded and slightly notched, apex long acuminate with a pronounced tubule; midrib proximally raised abaxially, slightly impressed adaxially; primary venation pinnate, slightly raised on both leaf surfaces; interprimaries sub-parallel to and barely distinguishable from primaries, slightly raised on both leaf surfaces; secondary venation reticulate, slightly raised abaxially and adaxially; INFLORESCENCE solitary on short leafy shoots, subtended by a fully developed or reduced foliage leaf, and a soon-degrading, membranous, long-ligulate prophyll; peduncle terete, 4-6 x 0.15-0.2 cm; spathe broadly canoe-shaped, rounded, minutely apiculate, 3-3.5 x 1.2-1.5 cm, stiffly fleshy, yellow, turning purple, (early marcescent?) leaving a large scar at the base of the spadix; spadix stout, cigar-shaped, stipitate, inserted level on stipe, 1.9-2.2 x 0.75-1 cm; stipe 4-4.5 x 1-1.2 mm; stylar region conical, regularly rhombohexagonal in plan view, 0.8-1 x c. 1 mm; stigma slightly raised, punctiform, c. 0.4 mm diam.; anthers exserted at male anthesis; INFRUCTESCENCE not seen.
Papua New Guinea (Eastern Highlands and Central Provinces).
A very distinctive species notable for the stiffly erect, densely leafy stems, the thickly coriaceous, ovate-cordate leaves with a long acuminate tip, the relatively large inflorescences turning purple at maturity, the long-stipitate spadix, and the conical stigmatic region.

Native to:

New Guinea

Rhaphidophora okapensis P.C.Boyce & Bogner appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Hartley, T.G. [13098], Papua New Guinea K000291817 isotype

First published in Gard. Bull. Singapore 52: 94 (2000)

Accepted by

  • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.


CATE Araceae

  • P.C. Boyce 2001. The Genus Rhaphidophora Hassk. (Araceae-Monsteroideae-Monstereae) in New Guinea, Australia and the Tropical Western Pacific Gardens Bulletin Singapore. 53: 75-183

CATE Araceae
Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.

Herbarium Catalogue Specimens
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 World Checklist of Selected Plant Families.

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.