1. Family: Poaceae Barnhart
    1. Genus: Aristida L.
      1. Aristida chaseae Hitchc.

        This species is accepted, and its native range is Puerto Rico.

    [GB]
    Habit
    Perennial; caespitose. Culms geniculately ascending; 50-60 cm long. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs; 0.3-0.5 mm long. Leaf-blades involute; 10-15 cm long; 1 mm wide. Leaf-blade surface scabrous; rough adaxially; pilose; sparsely hairy; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear; 10-15 cm long. Primary panicle branches appressed; 2-5 cm long. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 11-13 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 2 mm long; pubescent; pungent.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 11-13 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 2 mm long; pubescent; pungent.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume linear; 10-13 mm long; 1 length of upper glume; membranous; 2 -veined. Lower glume primary vein scabrous. Lower glume apex acuminate, or setaceously attenuate. Upper glume linear; 10-13 mm long; membranous; 1 -veined. Upper glume primary vein smooth. Upper glume lateral veins absent. Upper glume apex acuminate, or setaceously attenuate.
    Florets
    Fertile lemma linear; subterete; 11 mm long; coriaceous; light brown and purple; mottled with last colour; 3 -veined. Lemma surface scaberulous; rough above. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn with 20 mm long limb. Lateral lemma awns spreading less than principal; 20 mm long; subequal to principal.
    Flowers
    Anthers 3.
    Distribution
    South America: Caribbean.
    Reference
    Aristideae. N Amer Fl 1994.

    Distribution

    Native to:

    Puerto Rico

    Aristida chaseae Hitchc. appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 22: 575 (1924)

    Accepted by

    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Literature

    Kew Backbone Distributions
    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. 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 2018. 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