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This species is accepted, and its native range is Sumatera to Philippines(Palawan).
A specimen from Kew's Herbarium


CATE Araceae, 17 Dec 2011.

General Description
Large, moderately robust, semipachycaul homeophyllous liane to 15 m; seedling stage a non-skototropic shingling shoot; pre-adult plants forming small terrestrial colonies of appressed shingling shoots; LEAVES: adult shoot architecture comprised of elongated, clinging, physiognomically unbranched, leafy, non-flowering stems and moderately elaborated, free, moderately leafy, flowering stems; stems smooth, climbing stems rectangular in cross-section, free stems more or less terete to very weakly four-angled in cross-section, larger shoot systems pendent under their own weight, without prophyll, cataphyll and petiolar sheath fibre, internodes to 7 x 1.5 cm on clinging shoots, shorter and less stout on free shoots, separated by prominent oblique leaf scars, older stems woody; flagellate foraging stems absent; clasping roots densely arising from the nodes and internodes of clinging stems, densely pubescent; feeding roots rare, clinging, pubescent; leaves weakly spiralled on clinging shoots, slightly scattered-distichous on flowering shoots; cataphylls and prophylls membranous, very soon drying and falling; petiole shallowly canaliculate adaxially, 4-7 x 0.1-0.2 cm, smooth, with a slight apical and rather prominent basal geniculum; petiolar sheath prominent, extending to and encircling the apical geniculum, very soon drying and falling to leave a thin continuous scar from the petiole base, around the top of the apical geniculum and back to the base, occasionally newest leaves with parchment-like sheath remain briefly adherent; lamina entire, falcate-lanceolate to falcate-oblong or falcate-oblanceolate, 10-29.5 x 1.5-7 cm, coriaceous, upper surfaces slightly glossy, lower surfaces less so, base minutely cordate to subovate to acute or briefly decurrent, apex subacute with a prominent apiculate apicule, margins slightly revolute in dried material; midrib raised abaxially, very slightly sunken adaxially; primary venation pinnate, raised abaxially and adaxially; interprimaries parallel to primaries, slightly raised abaxially and adaxially; secondary and tertiary venation slightly raised in dried specimens; INFLORESCENCE solitary, subtended either by a fully developed foliage leaf or by one or more subfoliar (i.e., developed petiole but atrophied lamina) cataphyll; peduncle slightly compressed-cylindric, 3-6 x 0.3-0.5 cm; spathe cigar-shaped, stoutly short-beaked, 7-9.5 x 2-3.5 cm, thickly fleshy, exterior light yellow, interior darker, soon (?) falling at female anthesis; spadix cylindrical to slightly clavate, very shortly stipitate, light yellow, 4-5.3 x 1.2-1.5 cm; stipe c. 2 mm long; stylar region well developed, mostly rounded to rhombohexagonal, 1.2-1.3 x c. 1.2 mm, conical; stigma conspicuously raised-punctiform, c. 0.2 mm diam.; anthers slightly exserted at male anthesis; INFRUCTESCENCE stoutly cylindrical, 6.5-7.5 x 1.8-2 cm.
Damp primary and old secondary forest.
Very close to and possibly indistinguishable from R. sylvest ris but consistent in the conical style topped with a prominent, raised button-like stigma and the notably more coriaceous leaves.
Sumatera, Kalimantan (East) and into the Philippines (Palawan).

Native to:

Borneo, Philippines, Sumatera

Rhaphidophora conocephala Alderw. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2001 [Longing, J.B.] [5137], Sumatera K000950223

First published in Bull. Jard. Bot. Buitenzorg, sér. 3, 1: 384 (1920)

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 Borneo Gardens Bulletin Singapore. 53: 19-74

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.