1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne surgens Jansen

        This species is accepted, and its native range is Sulawesi (Mt. Bonthain).

    [GB]
    Habit
    Perennial. Culms geniculately ascending, or decumbent; 80-100 cm long; 1 mm diam.; rooting from lower nodes. Culm-internodes smooth; distally glabrous. Culm-nodes glabrous. Lateral branches ample. Leaf-sheaths 15-80 cm long; mostly shorter than adjacent culm internode; glabrous on surface; outer margin hairy. Leaf-sheath oral hairs scanty. Ligule absent. Leaf-blades linear, or lanceolate; 6-7 cm long; 5-8 mm wide. Leaf-blade venation with 4-6 secondary veins. Leaf-blade surface scabrous; rough on both sides; glabrous, or puberulous; hairy abaxially. Leaf-blade margins unthickened, or cartilaginous; scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 4-5 cm long. Primary panicle branches spreading; 1 -nate; 1-2 cm long. Panicle branches capillary; flexuous; smooth. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 1.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 1.7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume oblong; 1.7 mm long; 1.1 length of upper glume; 1 length of spikelet; membranous; without keels; 7 -veined. Lower glume lateral veins obscure. Lower glume surface glabrous. Lower glume apex obtuse. Upper glume oblong; 1.5 mm long; 0.9 length of spikelet; membranous; without keels; 7 -veined. Upper glume primary vein obscure. Upper glume surface glabrous. Upper glume apex obtuse.
    Florets
    Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret oblong; 1.7 mm long; 1.4 length of fertile lemma; 1 length of spikelet; chartaceous; 5 -veined; obscurely veined; glabrous; obtuse. Fertile florets bisexual, or female. Fertile lemma oblong; 1.2 mm long; coriaceous; without keel. Lemma surface puberulous. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-tropical: Malesia.
    Reference
    Isachneae. Jansen 2001.

    Distribution

    Native to:

    Sulawesi

    Isachne surgens Jansen appears in other Kew resources:

    First published in Reinwardtia 2: 281 (1953)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Iskandar, E.A.P. & Veldkamp, J.F. (2004). A revision of Malesian Isachne sect. Isachne (Gramineae, Panicoideae, Isachneae) Reinwardtia 12: 159-179.

    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 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