Butia paraguayensis (Barb.Rodr.) L.H.Bailey
  • Gentes Herb. 4: 47 (1936) 

Notes: Distribution: Brazil to NE. Argentina

General Description

Acaulescent, or with trunk 1-2 m tall, 10-20 cm in diam.; sheathing base about 20 cm long, petiole 45-48 cm long, margins mostly with short spines interspersed with fibers; rachis of leaf 57-93 cm long; pinnae 40-42 on each side, regularly arranged, middle ones 45-55 cm long, 0.8-1.5 cm wide, mostly with acute, asymmetrical tips; expanded part of spathe 40-60 cm long, 4-8 cm wide, smooth or striate, brownish-pubescent at first, becoming glabrous with age; branched part of spadix 35-38 cm long, rachillae 38-43, each 20-23 em long; pistillate flowers ovoid, 10-16 mm long, 6-9 mm in diam.; lower staminate flowers 8-13 mm long, upper ones 4-7 mm long; mature fruit ovoid 3.0-3.7 cm long, 2.1-2.3 cm in diam., beak conspicuous, angled, persistent perianth 1.51.8 cm high, locules 1-3, mature seeds not seen.


Paraguay, Argentina (province of Corrientes) and Brazil (states of Santa Catarina, Sao Paulo, and Mato Grosso) in campos, cerrados and pastures.

Common Names

Yatay guazu (Paraguay), yatay poñi (Argentina), coco amargoso (Sao Paulo, Brazil).

Distribution Map

  • Native distribution
Found in
  • Southern America Brazil Brazil South
  • Brazil Southeast
  • Brazil West-Central
  • Southern South America Argentina Northeast
  • Paraguay
  • 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 Gauto, M.I. (2009). Conservation status assessment of Paraguayan Palms (Arecaceae): 1-132. Universitéde Genève, Faculté des sciences. Masters in Biology.
  • 3 Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 4 Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. Continental Publishing, Deurne.
  • 5 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
  • B All Rights Reserved
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
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