1. Family: Poaceae Barnhart
    1. Genus: Sorghum Moench
      1. Sorghum propinquum (Kunth) Hitchc.

        This species is accepted, and its native range is Tropical & Subtropical Asia to NW. & Central Pacific.

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms erect; 200-300 cm long. Culm-nodes pubescent. Ligule an eciliate membrane. Leaf-blades 30-100 cm long; 10-50 mm wide.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; ovate; loose; 20-60 cm long. Primary panicle branches moderately divided. Panicle branches flexuous. Racemes bearing few fertile spikelets; 2-6 fertile spikelets on each. Rhachis fragile at the nodes; ciliate on margins. Rhachis internodes filiform. Rhachis internode tip transverse; cupuliform. Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels filiform; ciliate.
    Spikelets
    Companion sterile spikelets well-developed; comprising 2 subequal glumes without lemmas, or male; linear to lanceolate; dorsally compressed; 4-5.5 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; acute; muticous. Companion sterile spikelet lemmas when present 2; enclosed by glumes; muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 3.8-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse. Spikelet callus hairs white.
    Sterile
    Companion sterile spikelets well-developed; comprising 2 subequal glumes without lemmas, or male; linear to lanceolate; dorsally compressed; 4-5.5 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; acute; muticous. Companion sterile spikelet lemmas when present 2; enclosed by glumes; muticous.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 3.8-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse. Spikelet callus hairs white.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 1 length of spikelet; coriaceous; much thinner above; pallid, or purple; without keels; keel-less except near apex. Lower glume surface pubescent. Lower glume apex entire, or dentate; 3 -fid; acute. Upper glume ovate; coriaceous; much thinner above; without keels. Upper glume surface pubescent. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline; 2 -veined; ciliate on margins; acute. Fertile lemma ovate; hyaline; 1 -veined. Lemma margins ciliate. Lemma apex dentate; 2 -fid; muticous. Palea absent or minute.
    Flowers
    Lodicules 2; oblong; fleshy; ciliate; hairy across the apex. Anthers 3. Stigmas 2; laterally exserted.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: China and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Pacific: south-central and northwestern.
    Reference
    Andropogoneae. WDC.

    Distribution

    Native to:

    Borneo, Cambodia, Caroline Is., China South-Central, China Southeast, Cook Is., Hainan, India, Jawa, Lesser Sunda Is., Malaya, Maluku, Marianas, New Guinea, Philippines, Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Vietnam

    Introduced into:

    Christmas I.

    Sorghum propinquum (Kunth) Hitchc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 1971 Gould, F.W. [13330], Sri Lanka K000731270
    Jun 1, 1971 Gould, F.W. [13515B], Sri Lanka K000731273
    Meijer, W. [39351], Malaysia K000731281
    Smitinand, T. [3886], Thailand K000688612
    Lugas, L. [501], Malaysia K000731275
    Dransfield, S. [1152], Brunei K000731278
    Parry, D.E. [10], Thailand K000688611
    Davidse, G. [8856], Sri Lanka K000731271
    Edaño, G.E. [37091], Philippines K000731285
    Soibeh, D. [135], Malaysia K000731276
    s.coll [A3289], Malaysia K000731279
    Bakia, K. [276], Malaysia K000731274
    Reynoso [17060], Philippines K000731283
    Kostermans [21276], Indonesia K000731280

    First published in Lingnan Sci. J. 7: 249 (1931)

    Accepted by

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • 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.
    • Turner, I.M. (1995 publ. 1997). A catalogue of the Vascular Plants of Malaya Gardens' Bulletin Singapore 47(2): 347-655.
    • Dassanayake (ed.) (1994). A Revised Handbook to the Flora of Ceylon 8: 1-458. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • George, A.S., Orchard, A.E. & Hewson, H.J. (eds.) (1993). Oceanic islands 2 Flora of Australia 50: 1-606. Australian Government Publishing Service, Canberra.
    • 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.
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • H?, P.-H. (2000). Câyc? Vi?tnam. An Illustrated flora of Vietnam, ed. 2, 3: 1-1020. Pham-hoang Ho, Montréal.
    • Dassanayake (ed.) (1994). A Revised Handbook to the Flora of Ceylon 8: 1-458. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • George, A.S., Orchard, A.E. & Hewson, H.J. (eds.) (1993). Oceanic islands 2 Flora of Australia 50: 1-606. Australian Government Publishing Service, Canberra.
    • 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.
    • Masamune, G. (1942). Enumeratio phanerogamarum Bornearum: 1-739. Taihoku, Formosa.

    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.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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