Butia yatay (Mart.) Becc.
  • Agric. Colon. 10: 498 (1916) 

Notes: Distribution: Brazil (Rio Grande do Sul) to NE. Argentina

General Description

Trees (2-) 8-12 m tall, about 40 em in diam., old petiole bases persistent on trunk when young, eventually dehiscing completely; sheathing base 58-60 em long, petiole 50-70 cm long, margins armed with coarse spiny teeth about 3 cm long on lower part, teeth becoming gradually smaller on upper part; rachis of leaf 170-200 em long, pinnae 68-72 in each side, regularly arranged, middle ones 75-81 cm long, 2.0-2.4 cm wide, mostly with acute, asymmetrical tips; expanded part of spathe 115-125 cm long, 10-12 em wide, smooth or striate, more or less glaucous outside; branched part of spadix 78-82 cm long, rachillae numerous (100 or more), each 30-32 em long; pistillate flowers ovoid, 10-16 mm long, 6-10 mm in diam.; lower staminate flowers 8-13 mm long, those above 5-8 mm long; mature fruit ovoid 3.0-4.2 cm long, 2.5-2.8 cm in diam., with prominent, conical beak, persistent perianth 1.8-2.2 cm high, locules 1-3, seeds 2.5-3.0 cm long, 1.2-1.4 cm in diam.


Native to northeastern Argentina in the provinces of Misiones, Santa Fe, Corrientes, and Entre Rios, forming great forests in sandy areas; and to Uruguay in the departments of Paysandli and Rio Negro, in sandy soils.

Common Names


Distribution Map

  • Native distribution
Found in
  • Southern America Brazil Brazil South
  • Southern South America Argentina Northeast
  • Uruguay


  • 1 Lorenzi, H., Noblick, L.R., Kahn, F. & Ferreira, E. (2010). Brazilian Flora Arecaceae (Palms): 1-268. Instituto Plantarum de Estudos da Flora LTDA, São Paulo, Brazil.
  • 2 Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 3 Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. Continental Publishing, Deurne.
  • 4 S.F. Glassman, Re-evaluation of the Genus Butia With a Description of a New Species. 1979

 Information From

Palmweb - Palms of the World Online
Palmweb 2011. Palmweb: Palms of the World Online. Published on the internet http://www.palmweb.org. Accessed on 21/04/2013
  • A Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
Global Biodiversity Information Facility
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eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
  • D See http://kew.org/about-kew/website-information/legal-notices/index.htm You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.