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This species is accepted, and its native range is New Guinea.


CATE Araceae, 17 Dec 2011.

Lowland swamp forest to upper hill Araucaria forest.
A remarkable and readily identifiable species with a large, very long-stipitate spadix. Confusion with Rhaphidophora stenophylla (also flowering on free shoots and with long-stipitate spadix) is possible, although the latter is readily identifiable by the much narrower leaf laminas, persistent petiolar sheath not degrading to strips and fibre, smaller (6-9 x 1.5-2.2 cm) spadix and long, pointed style
General Description
Medium-sized, robust, pachycaul, homeophyllous (?) liane to 25 m; seedling stage and pre-adult plants not observed; LEAVES: adult shoot architecture not fully observed but apparently comprised of elongated, clinging, physiognomically unbranched, non-flowering stems and free, sympodial, leafy flowering stems; stems smooth, cataphylls and prophylls caducous, internodes 1-3 x 0.5-1 cm, separated by wide but not especially prominent slightly oblique corky leaf scars; flagellate foraging stem, clasping roots and feeding roots not observed; leaves distichous to very weakly spiro-distichous; cataphylls and prophylls caducous; petiole deeply canaliculate, 17-37 x 0.4-1 cm, apical geniculum prominent, basal geniculum large but weakly defined; petiolar sheath prominent, extending to apical geniculum, slowly degrading to chartaceous strips and a very few simple fibres, then falling leaving a pale scar; lamina entire, ovate to oblong-lanceolate or oblong-elliptic or oblanceolate, slightly oblique, 18-47 x 9-16 cm, coriaceous, base rounded to oblique and very weakly cordate on one side and slightly decurrent on the other, apex acute to briefly acuminate, drying adaxially dull olive-green and abaxially dark brown in the one known collection; midrib prominently raised abaxially, sunken adaxially; primary venation pinnate, raised abaxially and adaxially; interprimaries sub-parallel to primaries, only slightly less prominent, slightly raised abaxially and adaxially; secondary venation reticulate, slightly raised abaxially and adaxially in dry specimens; INFLORESCENCE solitary, subtended by a fully developed foliage leaf; peduncle stout, terete, 9-10 x 1.7-2 cm; spathe canoe-shaped, stoutly acuminate, 20-23 x 2.5-2.5 cm, stiffly very fleshy, marcescent, eventually falling leaving a very large (c. 1.5 cm wide) scar; spadix cylindrical to slightly cigar-shaped, slightly curved, long-stipitate, inserted more or less level on stipe, 13.5-19 x 2.2-4 cm; stipe slender-terete, 1.5-3 x 0.4-1.5 cm; stylar region rhombohexagonal, 1.75-2.5 x 1.5-3 mm, truncate with a raised rim; stigma punctiform, flat, c. 0.4 mm diam.; anthers not exserted at male anthesis; INFRUCTESCENCE cylindrical, c. 17 x 2 cm (known from fragments).
Indonesian Papua (Yapen), Papua New Guinea (East anf West Sepik, Milne Bay and Morobe Provinces).

Native to:

New Guinea

Rhaphidophora discolor Engl. & K.Krause appears in other Kew resources:

First published in Bot. Jahrb. Syst. 54: 80 (1916)

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.

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.