1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne swaminathanii V.Prakash & S.K.Jain

        This species is accepted, and its native range is W. India.

    [GB]
    Habit
    Perennial; caespitose; clumped loosely. Culms decumbent; 30-95 cm long; 2.5 mm diam.; rooting from lower nodes. Culm-internodes terete; 7-15.5 cm long; striate; distally glabrous. Culm-nodes glabrous, or pubescent. Lateral branches ample. Leaf-sheaths loose; subequal to internodes; glabrous on surface, or hirsute. Ligule a fringe of hairs; 2-3 mm long. Leaf-blades lanceolate; 1-16 cm long; 3-17 mm wide. Leaf-blade midrib prominent beneath. Leaf-blade venation comprising 5-7 vascular bundles. Leaf-blade surface hirsute; hairy adaxially, or on both sides; with tubercle-based hairs. Leaf-blade margins cartilaginous; scabrous. Leaf-blade apex acute, or acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; pyramidal; effuse; 8-18 cm long. Primary panicle branches 1 -nate; 3-6 cm long. Panicle branches capillary; flexuous; glandular. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; flexuous; 1-8 mm long; glandular; glabrous.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; globose; dorsally compressed; 2.2-2.5 mm long; breaking up at maturity; disarticulating above glumes but not between florets.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets orbicular; globose; dorsally compressed; 2.2-2.5 mm long; breaking up at maturity; disarticulating above glumes but not between florets.
    Glume
    Glumes deciduous; similar; reaching apex of florets; thinner than fertile lemma. Lower glume elliptic; 1 length of spikelet; membranous; without keels; 7-9 -veined. Lower glume surface glabrous, or setose. Lower glume apex obtuse. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 7-9 -veined. Upper glume surface glabrous, or setose. Upper glume apex obtuse.
    Florets
    Fertile lemma elliptic, or orbicular; hemispherical; 1.8-2.2 mm long; coriaceous; without keel. Lemma surface puberulous. Lemma margins involute. Lemma apex obtuse. Palea elliptic; coriaceous; 0 -veined.
    Flowers
    Anthers 3; 1.5 mm long.
    Distribution
    Asia-tropical: India.
    Reference
    Isachneae. Prakash & Jain 2005.

    Distribution

    Isachne swaminathanii V.Prakash & S.K.Jain appears in other Kew resources:

    First published in Proc. Indian Acad. Sci., Pl. Sci. 92: 19 (1983)

    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.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    Literature

    Kew Backbone Distributions
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    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