1. Family: Poaceae Barnhart
    1. Dichelachne Endl.

      1. This genus is accepted, and its native range is Lesser Sunda Islands to New Zealand, Tubuai to Easter Island.

    [GB]

    nonem

    Habit
    Annual (1), or perennial. Culms erect (8/8), or geniculately ascending (1/8); 15-72-170 cm long; firm (8), or wiry (2). Lateral branches lacking (7/7). Ligule an eciliate membrane (7), or a ciliolate membrane (3).
    Inflorescences
    Inflorescence a panicle. Panicle open (5), or contracted (4), or spiciform (1). Primary panicle branches not whorled (9), or whorled at most nodes (1). Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension (8), or with a barren rhachilla extension (3). Spikelets linear (3/9), or lanceolate (6/9); laterally compressed; 3-5.42-10 mm long; breaking up at maturity; disarticulating below each fertile floret (9/9). Floret callus brief (2), or evident (8); pubescent (6), or pilose (3), or bearded (1).
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension (8), or with a barren rhachilla extension (3). Spikelets linear (3/9), or lanceolate (6/9); laterally compressed; 3-5.42-10 mm long; breaking up at maturity; disarticulating below each fertile floret (9/9). Floret callus brief (2), or evident (8); pubescent (6), or pilose (3), or bearded (1).
    Glume
    Glumes persistent (9/9); reaching apex of florets (9/9); thinner than fertile lemma (9), or similar to fertile lemma in texture (1); parallel to lemmas (1), or gaping (9). Lower glume lanceolate, or elliptic (1); 0.75-0.9222-1 length of upper glume; hyaline (1/9), or membranous (8/9); 1-keeled (9/9); 1 -veined. Lower glume lateral veins absent (9), or distinct (1). Lower glume apex acute (5), or acuminate (5), or attenuate (2), or setaceously attenuate (1). Upper glume lanceolate, or elliptic (1); 1-1.038-1.25 length of adjacent fertile lemma; hyaline (1/9), or membranous (8/9); with undifferentiated margins (9), or hyaline margins (1); 1-keeled (9/9); 1 -veined. Upper glume apex acute (4), or acuminate (4), or attenuate (2), or setaceously attenuate (2).
    Florets
    Fertile lemma linear (1/9), or lanceolate (7/9), or elliptic (1/9); cartilaginous; keeled (9/9); 1 -veined (1/9), or 5 -veined (8/9). Lemma surface smooth (6), or asperulous (2), or scaberulous (1), or papillose (1); glabrous (9), or puberulous (1). Lemma margins flat (1), or involute (9). Lemma apex entire (7), or dentate (3); 2 -fid (3/3); obtuse (5/7), or acute (1/7), or acuminate (1/7); awned; 1 -awned. Principal lemma awn subapical (7), or dorsal (5); flexuous (5), or geniculate (4), or bigeniculate (1); 2-4.083-6 length of lemma. Column of lemma awn glabrous (3/5), or puberulous (1/5), or hirsute (1/5). Palea 0.75 length of lemma; 2 -veined (3/3), or 3-4 -veined (1/3). Palea keels separated (7), or approximate (3); smooth (8), or scaberulous (1), or scabrous (1). Palea surface glabrous (9), or pubescent (1), or pilose (1).
    Flowers
    Lodicules 2 (6/6); membranous (2/2); glabrous (5/6), or ciliate (2/6). Anthers 1-2 (2), or 3 (9).
    Fruits
    Caryopsis with adherent pericarp (8/8); oblong (1/1); apex rostrate (2/2). Embryo 0.1-0.15-0.2 length of caryopsis. Hilum punctiform (3/5), or linear (2/5); 0.8 length of caryopsis.
    Distribution
    Tropical Asia (2), or Australasia, or Pacific (2).

    Images

    Distribution

    Native to:

    Chatham Is., Easter Is., Kermadec Is., Lesser Sunda Is., New Guinea, New Guinea, New South Wales, New Zealand North, New Zealand South, Norfolk Is., Queensland, South Australia, Tasmania, Tubuai Is., Victoria, Western Australia

    Introduced into:

    Hawaii, Niue

    Dichelachne Endl. appears in other Kew resources:

    First published in Prodr. Fl. Norfolk.: 20 (1833)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    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