1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne pulchella Roth

        This species is accepted, and its native range is Tropical & Subtropical Asia to Marianas.

    [GB]
    Habit
    Annual. Culms prostrate; slender; 10-25 cm long. Culm-nodes bearded. Lateral branches sparse. Leaf-sheaths striately veined; glabrous on surface, or pilose; with tubercle-based hairs; outer margin hairy. Ligule a fringe of hairs. Leaf-blade base broadly rounded. Leaf-blades elliptic; 1-4 cm long; 5-10 mm wide; mid-green and glaucous; discolorous with last colour beneath. Leaf-blade surface puberulous; hairy on both sides. Leaf-blade margins cartilaginous; undulate; ciliate; hairy at base. Leaf-blade apex acute.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic, or oblong; 3-10 cm long; 0.5-3 cm wide. Primary panicle branches spreading; sparsely divided; 2.5 cm long. Panicle branches straight, or flexuous; glandular. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; glandular.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.5-1.6 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.5-1.6 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic; 1-1.2 mm long; 1 length of upper glume; 0.66-0.75 length of spikelet; herbaceous; without keels; 5 -veined. Lower glume apex obtuse. Upper glume elliptic; 1.25 mm long; 0.8 length of spikelet; herbaceous; without keels; 7 -veined. Upper glume apex obtuse.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret elliptic; 1.5 mm long; 5 -veined; obtuse. Fertile lemma elliptic; 1 mm long; coriaceous; pallid; without keel. Lemma surface pubescent. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Lodicules 2; cuneate; fleshy. Anthers 3; 0.3-0.4 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: China and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Australasia: Australia. Pacific: northwestern.
    Reference
    Isachneae. Bor 1992.

    Images

    Distribution

    Native to:

    Bangladesh, Borneo, China South-Central, China Southeast, India, Jawa, Malaya, Marianas, Myanmar, Nepal, Nicobar Is., Philippines, Sulawesi, Sumatera, Taiwan, Thailand, Vietnam, West Himalaya

    Isachne pulchella Roth appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sorensen, Th. [5776], Thailand K000688396
    Sorensen, Th. [3354], Thailand K000688397
    Put [4320], Thailand K000621280
    Put [4320], Thailand K000621281
    Wallich, N. [s.n.], Nepal K001056205 isotype
    Wallich, N. [s.n.], Nepal K001056206 isotype

    First published in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15 bis 2: 476 (1817)

    Accepted by

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • Ahmed, Z.U. (ed.) (2008). Encyclopedia of Flora and Fauna of Bangladesh 12: 1-505. Asiatic Society of Bangladesh.
    • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Iskandar, E.A.P. & Veldkamp, J.F. (2004). A revision of Malesian Isachne sect. Isachne (Gramineae, Panicoideae, Isachneae) Reinwardtia 12: 159-179.
    • Turner, I.M. (1995 publ. 1997). A catalogue of the Vascular Plants of Malaya Gardens' Bulletin Singapore 47(2): 347-655.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Gilliland, H.B. (1971). A revised flora of Malaya 3: 1-319. The Royal Botanic Gardens, Singapore.
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    Literature

    Kew Backbone Distributions
    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • Kandwal, M.K. & Gupta, B.K. (2009). An update on grass flora of Uttarkhand Indian Journal of Forestry 32: 657-668.
    • Ahmed, Z.U. (ed.) (2008). Encyclopedia of Flora and Fauna of Bangladesh 12: 1-505. Asiatic Society of Bangladesh.
    • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Iskandar, E.A.P. & Veldkamp, J.F. (2004). A revision of Malesian Isachne sect. Isachne (Gramineae, Panicoideae, Isachneae) Reinwardtia 12: 159-179.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Gilliland, H.B. (1971). A revised flora of Malaya 3: 1-319. The Royal Botanic Gardens, Singapore.

    Sources

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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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