Patis rattan (Calamus unifarius)

Patis rattan (Calamus unifarius) is a species of plant in the Arecaceae, a dense shrub, grows climbing up to 50 meters, cream colored stems, stem diameter with midrib up to 30 mm, diameter without midrib 25 mm and internode length up to 30 cm.

C. unifarius has green leaf midribs with black horizontal spines, spines up to 2 cm long, climbing tools in the form of cyrs or pigtails with a length of 100 cm. Knee clear.



The leaves are up to 3 meters long and the stems are 3.5 cm long. The minor leaves are lanceolate, 15-20 on the right and left of the rakis, arranged pinnately irregularly. Minor leaves are up to 60 cm long and up to 17 cm wide.

TAXON

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Arecales
Family: Arecaceae
Subfamily: Calamoideae
Tribe: Calameae
Genus: Calamus L. in Sp. Pl.: 325 (1753)
Species: Calamus unifarius H.Wendl. in Bot. Zeitung (Berlin) 17: 158 (1859)

HOMOTYPIC SYNONYMS

Palmijuncus unifarius (H.Wendl.) Kuntze in Revis. Gen. Pl. 2: 734 (1891)

HETEROTYPIC SYNONYMS

Calamus unifarius var. pentong Becc. in J.D.Hooker, Fl. Brit. India 6: 458 (1893)

PUBLICATIONS

Girmansyah, D. & al. (eds.) (2013). Flora of Bali an annotated checklist: 1-158. Herbarium Bogorensis, Indonesia.

Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.

Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

Henderson, A. (2009). Palms of Southern Asia: 1-197. Princeton university press, Princeton and Oxford.

Jasni, Krisdianto, Kalima T, Abdurachman (2012). Atlas Rotan Indonesia. Jilid 3. Pusat Penelitian dan Pengembangan Keteknikan Kehutanan dan Pengolahan Hasil Hutan. Badan Penelitian dan Pengembangan Kehutanan. Kementerian Kehutanan, Bogor.

Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India. Journal of Economic and Taxonomic Botany 32: 403-500.

Sharief, M.U. (ed.) (2024). Flora of India 28: 1-764. Botanical Survey of India.

Titi Kalima (2015). Keanekaragaman spesies rotan di Jawa Barat dan prospek pengembangan. Pros Sem Nas Masy Biodiv Indon, Volume 1, Nomor 8, Desember 2015, ISSN: 2407-8050, Hal: 1802-1809, DOI:10.13057/psnmbi/m010809

VERNACULAR NAME
English: Patis rattan
Indonesian: Rotan patis, Rotan wuluh
Java: Rotan wuluh, Rotan patis
Sumatera: Wai sideken
Sunda: Rotan patis

Aryo Bandoro
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