Skip to main content
This species is accepted, and its native range is Sulawesi.


CATE Araceae, 17 Dec 2011.

General Description
Large, robust, homeophyllous liane to unknown ultimate height; seedling stage and pre-adult plants unknown; stems smooth, terete in cross-section, internodes to 1 x 1.5 cm long, separated by large oblique, very prominent, slightly shiny leaf scars; flagellate foraging stems, clasping roots, & feeding roots unknown; LEAVES weakly spiralled on free shoots; cataphylls and prophylls membranous, quickly drying and degrading into soft fibre, then swiftly falling; petiole canaliculate, 16-22 x 0.25-0.4 cm, smooth, apical and basal genicula well defined; petiolar sheath not observed, scar from (swiftly?) fallen sheath extending to the apical geniculum; lamina entire, oblique-oblong, 21-27 x 9.5-12 cm, coriaceous, upper surfaces semiglossy, lower surfaces matt, base obtuse, apex acuminate with a prominent tubule; midrib raised abaxially, very slightly sunken adaxially; primary venation pinnate, barely raised abaxially and adaxially; interprimaries parallel to primaries and barely less prominent; secondary and tertiary venation ± barely visible in dried specimens; INFLORESCENCE solitary, subtended by a fully developed foliage leaf and one (more?) cataphylls; peduncle compressed-cylindric, 12 x 0.5 cm; spathe ovate-canoe-shaped, stoutly long beaked, 14.5 x 7 cm (flattened out), thickly stiff-fleshy, exterior green, turning purple with age, yellow internally, persistent at least until anthesis; spadix very slightly tapering-cylindrical, very briefly stipitate, 8-10 x 1-1.5 cm; stipe c. 2 mm long; stylar region very weakly rhombohexagonal, almost circular, c. 0.8-0.9 mm diam., truncate; stigma punctiform, raised, c. 0.3 mm diam.; anthers well exserted at anthesis; INFRUCTESCENCE unknown.
Superficially similar to R. montana, but readily discernible by the terete, not rectangular cross-section of the adherent stems, the briefly stipitate spadix and the anthers exserted at anthesis. Further, in R. sarasinorum the spathe is persistent (swiftly falling in R. montana), with the spathe exterior turning purple prior to opening, a feature not found in R. montana and one that is rare in Rhaphidophora as a whole, the species generally having the spathe yellow, green or orange just prior to female receptivity. Confusion with R. ternatensis and R. balgooyi is possible. From R. ternatensis the prophyll, cataphyll and petiolar sheath fibre, primary lateral veins barely differentiated from the interprimaries and much shorter spadix stipe are diagnostic. The larger spadix (11--15 cm) and flat stigmas immediately distinguish Rhaphidophora balgooyi.
Sulawesi. Endemic. Known only from vicinity of Masarang.

Native to:


Rhaphidophora sarasinorum Engl. appears in other Kew resources:

First published in Bot. Jahrb. Syst. 37: 114 (1905)

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.
  • Kurniawan, A., Adjie, B. & Boyce, P.C. (2011). Studies on the Araceae of Sulawesi I: New taxa of Schismatoglottis and Homalomena, and a preliminary checklist and keys for Sulawesi Acta Phytotaxonomica et Geobotanica 61: 40-50.


CATE Araceae

  • P.C. Boyce 2000. The Genus Rhaphidophora Hassk. (Araceae-Monsteroideae-Monstereae) in the Southern and Western Indonesian Archipelago Gardens Bulletin Singapore. 52: 101-183

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.