1. Family: Poaceae Barnhart
    1. Spinifex L.

      1. This genus is accepted, and its native range is Tropical & Subtropical Asia to SW. Pacific and Australasia.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (3), or elongated (1). Stolons present. Culms decumbent (1/1); 30-58.75-90 cm long; woody. Ligule a fringe of hairs. Leaf-blades herbaceous (1), or indurate (3); stiff. Leaf-blade apex muticous (1), or pungent (3).
    Inflorescences
    Dioecious. Synflorescence compound; stellate. Inflorescence composed of racemes; terminal and axillary; deciduous as a whole; subtended by a spatheole; embraced at base by subtending leaf. Spatheole expanded; lanceolate; scarious. Racemes single; radiating; unilateral; bearing 1 spikelet. Rhachis subterete; terminating in a barren extension; extension subulate (3), or bristle-like (1). Spikelet packing abaxial. Spikelets appressed; solitary. Fertile spikelets sessile. Male spikelets sessile. Male inflorescence unlike female; a single raceme. Male spikelets distinct from female; lanceolate (3/3). Male spikelet glumes 2.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic (1); dorsally compressed; 6-11.18-18 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent (2/2).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic (1); dorsally compressed; 6-11.18-18 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent (2/2).
    Glume
    Glumes reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate, or elliptic (1); membranous (1), or chartaceous; without keels; 7-8 -veined (3), or 9 -veined. Lower glume surface glabrous, or puberulous (2), or pubescent (1). Lower glume apex acute (2), or acuminate (2). Upper glume lanceolate (3), or elliptic (1), or ovate (1); membranous (1), or chartaceous; without keels; 5 -veined (1), or 7 -veined (3), or 8-9 -veined (2). Upper glume surface glabrous, or puberulous (2), or pubescent (1). Upper glume apex acute (2), or acuminate (2).
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate (3), or elliptic (1), or ovate (1); chartaceous, or cartilaginous (1); 5 -veined, or 6-9 -veined (2); acute (2), or acuminate (2). Fertile florets female. Fertile lemma lanceolate (3), or ovate (1); membranous; of similar consistency on margins (1), or much thinner on margins (3); without keel; 5 -veined (1/1). Lemma apex acute (2), or acuminate (2).
    Flowers
    Anthers 3 (1/1).
    Male
    Male inflorescence unlike female; a single raceme. Male spikelets distinct from female; lanceolate (3/3). Male spikelet glumes 2.
    Distribution
    Temperate Asia (1), or Tropical Asia (2), or Australasia, or Pacific (3).

    Images

    Distribution

    Native to:

    Andaman Is., Bangladesh, Cambodia, China Southeast, Hainan, India, Japan, Jawa, Laccadive Is., Lesser Sunda Is., Malaya, Maldives, Maluku, Myanmar, Nansei-shoto, New Caledonia, New Guinea, New South Wales, New Zealand North, New Zealand South, Nicobar Is., Norfolk Is., Northern Territory, Philippines, Queensland, South Australia, Sri Lanka, Sulawesi, Sumatera, Taiwan, Tasmania, Thailand, Tonga, Victoria, Vietnam, Western Australia

    Spinifex L. appears in other Kew resources:

    First published in Mant. Pl. 2: 163 (1771)

    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