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


CATE Araceae, 17 Dec 2011.

Secondary submontane forest
General Description
Small, homeophyllous (?) liane to unknown ultimate height; seedling stage and pre-adult plants not observed; LEAVES: adult shoot architecture comprised of elongated, clinging, physiognomically unbranched, leafy(?), non-flowering stems and short, free, sympodial, flowering stems; stems terete in cross-section, internodes to at least 5 x 0.5 cm, separated by straight oblique, weak leaf scars; flagellate foraging stems, unknown; clasping roots solitary, stout, arising from nodes; feeding roots not observed; leaves weakly spiro-distichous on free shoots; cataphylls and prophylls chartaceous, very soon degrading into weak fibres and patches of soft felt-like debris; petiole weakly canaliculate, 4.5-9 x 0.2-0.25 cm, smooth, apical and basal geniculum well defined petiolar sheath prominent, chartaceous, extending to apical geniculum, very swiftly degrading to weak fibres and strips of soft felt-like debris; lamina entire, narrowly lanceolate to narrowly lanceolate-elliptic, occasionally very slightly falcate, 6-18 x 2-3.5 cm, stiffly coriaceous, base rounded to acute, apex long-acuminate with a prominent apicule; midrib raised abaxially, slightly flush to very slightly sunken adaxially; primary venation densely pinnate, very slightly raised abaxially and adaxially; interprimaries parallel to primaries, slightly less pronounced; secondary venation very faintly open-reticulate; INFLORESCENCE solitary, subtended by a foliage leaf and felted debris; peduncle stout, compressed-terete, 8-11 x 0.3-0.5 cm; spathe canoe-shaped, very long stout-acuminate, 9.5 x c. 1.8 cm, marcescent; spadix cigar-shaped, sessile, 5.5 x 1 cm; stylar region rhombohexagonal, c. 0.9--1 x 1.2-1.5 mm, truncate; stigma punctiform, flush, c. 0.4 mm diam.; anthers not exserted at male anthesis; INFRUCTESCENCE cylindrical, c. 8 x 1.8 cm.
Rhaphidophora pilosa is one of several montane species with stiffly coriaceous leaves (Okapensis Group). It is most similar to R. gorokensis and R. kokodensis, differing from the former in possessing fibrous shoot tips ( R. gorokensis lacks fibre) and from the latter in the felted (not simply fibrous) nature of the shoot tip debris. Confusion with R. waria is possible although this is a much larger species flowering on clinging, not free, shoots.
Indonesian Papua (Kepala Burung Prov.). Known only from the type.

Native to:

New Guinea

Rhaphidophora pilosa P.C.Boyce appears in other Kew resources:

First published in Gard. Bull. Singapore 53: 151 (2001)

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.