Skip to main content
  1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Butia (Becc.) Becc.
      1. Butia exospadix Noblick

        This species is accepted, and its native range is Brazil (S. Mato Grosso do Sul) to NE. Paraguay.

    [PW]
    General Description
    Stem solitary, acaulescent, subterranean 10–20 cm in diam. Leaves 2–7 in the crown, spirally arranged and spreading; leaf sheath plus petiole ca. 6–11 cm long, adaxially channeled and abaxially rounded, and glabrous; petiole without the leaf sheath 0–3 cm long and 0.3–0.5 cm wide and 0.2 cm thick at the base of the leaf blade; leaf rachis 3–10 cm long with 6–10 pairs of leaflets distributed evenly along the rachis closely crowded together in a congested manner; basal leaflets ca. 32–42 cm long × 0.1–0.2 cm wide, middle leaflets ca. 30–48 cm long × 0.3–0.4 cm wide, apical leaflets ca. 32–45 cm long × 0.1–0.2 cm wide. Inflorescence interfoliar, unbranched, 4.5–12 cm long with peduncle glabrous, 36–67 cm long × 0.15–0.2 cm diam.; peduncular bract 33–46 cm long with no apparent beak and the expanded or inflated part of the bract 5.5–16 cm long × 0.5–1 cm in width and with a 1.2–2.3 cm perimeter and a 0.5–1 mm thickness, tightly enveloping the peduncle; rachilla 1, ca. 4.5–12 cm long; pistillate (triad) flowering portion 1.5–2.5 cm long, number of pistillate flowers 9–17 and the staminate flowering portion measuring 4–6 cm long. Flowers pale yellow to purple tinged, staminate flowers near the base of the inflorescence 3.5–4.0 mm long, sessile; sepals 3, distinct, linear, imbricate but briefly connate at base, acute to mucronate, membranous, glabrous; petals 3 distinct, unequal, obovate, valvate, fleshy, glabrous, with inconspicuous venation, ca. 3.5–4.0 × 2 mm, acute tips; stamens 6, pale yellow, distinct, 2.2–2.8 mm long, with filaments 1–2 mm long; pistillode trifid, not reflexed, less than 0.5 mm long. Pistillate flowers, globose to ovoid, sessile 3.5–4.0 × 2.5–3.5 mm; sepals, glabrous, without visible venation 3–3.5 × 2.5–3.2 mm, coriaceous, imbricate, sepals subequal, acute, keeled to faintly keeled at tip; petals 3, distinct, imbricate at base, valvate at apex, triangular, faintly nerved, especially near the base, glabrous, 2.5–3.5 × 2–3 mm, valvate portion 0.5–1.5 mm long, acute; gynoecium 2–2.7 × 1.5 mm. glabrous, stigma 0.5–0.8 mm long, and staminodes 0.6–0.7 mm long, 3– 6 dentate to smooth and truncate. Fruits purple when mature, 1.2–2.0 × 1.2–1.5 cm, ovoid; cupule (persistent perianth) reddish brown, 0.8–1.0 cm in diam. × ca. 0.3–0.4 cm high; petals longer than sepals, staminodial ring truncate, 1 mm high × 3–4 mm diam.; epicarp, dark purple when mature, smooth and glabrous; mesocarp pale yellowish, fleshy, non-fibrous ca. 1–2 mm thick; endocarp nearly spherical, ca. 1.0–1.6 × 1.0–1.3 cm, 1 mm or less thick, hard, bony, dark brown to nearly black, apex with no distinctive protuberance or beak, interior smooth, monovittate, round in crosssection, outer surface nearly smooth, pores 3 nearly even with surface and subequatorial, sutures visible especially at apex; seed 1, spherical to ellipsoidal, ca. 0.8–1.2 × ca. 1 cm, endosperm white, homogeneous. Germination remote tubular, eophyll simple, narrowly lanceolate.
    Biology
    Open grasslands and savannas (cerrados); flat terrain with deep sandy soils and with few, and sparsely distributed shrubs and trees, frequently associated with Allagoptera campestris. The plants are restricted to the open short grasses rather than in the adjacent low weedy scrub. Most of palms had flowers or developing immature fruit with only one with mature fruit in February.
    Distribution
    Known from the Paraguay–Brazil border in Canindeyú, Paraguay between Ypé Jhu (Paranhos, Brazil) and Capitán Bado (Colonel Sapucala, Brazil) just north of Itanana, and also from Alto Parana, an area now flooded by the Itaipu Reservoir.
    Vernacular
    jataí; poñy.
    Diagnostic
    acaule et subterreano; folium reduplicato-pinnatum foliolis 6–10, congestis, rhachide foliorum 3–10 cm longa; spica super spatham exerta.

    Distribution

    Native to:

    Brazil West-Central, Paraguay

    Other Data

    Butia exospadix Noblick appears in other Kew resources:

    Bibliography

    First published in Palms (1999+) 50: 169 (2006)

    Accepted by

    • 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.
    • Gauto, M.I. (2009). Conservation status assessment of Paraguayan Palms (Arecaceae): 1-132. Universitéde Genève, Faculté des sciences. Masters in Biology.

    Literature

    Palmweb - Palms of the World Online

    • L. Noblick, The grassy Butia: Two new species and a new combination. 2006

    Kew Backbone Distributions

    • 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.

    Sources

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    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
    Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License http://creativecommons.org/licenses/by-nc-sa/3.0