1. Family: Poaceae Barnhart
    1. Hackelochloa Kuntze

      1. This genus is accepted, and its native range is Tropical & Subtropical Old World.

    [GB]

    nonem

    Habit
    Annual. Culms erect; 5-63.75-100 cm long. Lateral branches fastigiate (1/1). Ligule a ciliolate membrane. Leaf-blades linear, or lanceolate.
    Inflorescences
    Synflorescence compound; scanty. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; exserted, or embraced at base by subtending leaf. Spatheole linear, or lanceolate (1). Racemes single. Rhachis fragile at the nodes; flattened. Rhachis internodes oblong; adherent to upper glume of sessile spikelet. Rhachis internode tip transverse; crateriform. Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels fused to internode; oblong.
    Spikelets
    Companion sterile spikelets well-developed; deciduous with the fertile. Companion sterile spikelet glumes muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong (1), or orbicular (1); dorsally compressed; 1.5-2.125-2.5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate; with central peg; attached transversely.
    Sterile
    Companion sterile spikelets well-developed; deciduous with the fertile. Companion sterile spikelet glumes muticous.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong (1), or orbicular (1); dorsally compressed; 1.5-2.125-2.5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate; with central peg; attached transversely.
    Glume
    Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume orbicular; indurate; without keels. Lower glume surface rugose (1), or cancellate (1), or areolate (1). Lower glume apex obtuse. Upper glume oblong; cartilaginous; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret ovate; hyaline; 0 -veined; obtuse. Fertile lemma ovate; hyaline; without keel; 0 -veined. Lemma apex obtuse, or acute (1). Palea hyaline; 0 -veined; without keels.
    Flowers
    Lodicules 1 (1/1).
    Fruits
    Caryopsis with adherent pericarp (1/1); orbicular (1/1); dorsally compressed (1/1).
    Distribution
    Africa (1), or Temperate Asia, or Tropical Asia, or Australasia (1), or Pacific (1), or North America (1), or South America (1).
    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Annuals
    Leaves
    Leaf-blades flat, coarse; ligule a very short ciliate membrane
    Inflorescences
    Inflorescence a single raceme, these numerous and aggregated into a spathate false panicle; racemes dorsally compressed; internodes flattened, oblong, cupuliform above, fused to the adjacent pedicel
    Spikelets
    Sessile spikelet globose; callus truncate, oblique, with a central boss; lower glume hemispherical, crustaceous, pitted and tuberculate, wingless; upper glume partly adherent to the enclosing internode; lower floret reduced to a hyaline lemma; upper lemma entire and awnless Pedicelled spikelet narrowly ovate, herbaceous, narrowly winged; pedicel broadly linear, scarcely distinguishable from the internode.
    Sessile
    Sessile spikelet globose; callus truncate, oblique, with a central boss; lower glume hemispherical, crustaceous, pitted and tuberculate, wingless; upper glume partly adherent to the enclosing internode; lower floret reduced to a hyaline lemma; upper lemma entire and awnless
    Fruits
    Caryopsis oblate, slightly dorsally flattened
    Pedicelled
    Pedicelled spikelet narrowly ovate, herbaceous, narrowly winged; pedicel broadly linear, scarcely distinguishable from the internode.
    [FZ]

    Gramineae, T. A. Cope. Flora Zambesiaca 10:4. 2002

    Habit
    Annuals.
    Ligules
    Ligule a very short ciliate membrane; leaf laminas flat.
    Inflorescences
    Inflorescence a single axillary raceme, these numerous and aggregated into a spathate false panicle; racemes dorsally compressed; internodes flattened, oblong, cupuliform above, fused to the adjacent pedicel.
    Fruits
    Caryopsis oblate, slightly dorsally flattened.
    Spikelets
    Pedicelled spikelet narrowly ovate, herbaceous, the inferior glume narrowly winged; pedicel broadly linear, scarcely distinguishable from the internode. Sessile spikelet globose; callus truncate, oblique, with a central boss; inferior glume hemispherical, crustaceous, rugose to cancellate, granular all over, wingless; superior glume partly adherent to the enclosing internode; inferior floret reduced to a hyaline lemma; superior lemma entire and awnless.

    Images

    Distribution

    Native to:

    Andaman Is., Angola, Assam, Bangladesh, Benin, Bismarck Archipelago, Borneo, Botswana, Burkina, Burundi, Cambodia, Cameroon, Cape Verde, Caroline Is., Central African Repu, Chad, China South-Central, China Southeast, Congo, East Himalaya, Eritrea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Hainan, India, Ivory Coast, Japan, Jawa, Kenya, Laos, Lesser Sunda Is., Malawi, Malaya, Mali, Maluku, Mozambique, Myanmar, Nansei-shoto, Nepal, New Guinea, Nicobar Is., Niger, Nigeria, Northern Provinces, Oman, Pakistan, Philippines, Senegal, Sierra Leone, Socotra, Solomon Is., Sri Lanka, Sudan, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Togo, Uganda, Vietnam, West Himalaya, Yemen, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Alabama, Argentina Northwest, Arizona, Belize, Bolivia, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Florida, French Guiana, Georgia, Guatemala, Guyana, Haiti, Hawaii, Honduras, Jamaica, Leeward Is., Louisiana, Madagascar, Maryland, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Missouri, New Mexico, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Suriname, Texas, Trinidad-Tobago, Venezuela, Windward Is.

    Hackelochloa Kuntze appears in other Kew resources:

    First published in Revis. Gen. Pl. 2: 776 (1891)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa
    • Rev. Gen. 2: 776 (1891).
    Flora Zambesiaca
    • Revis. Gen. Pl. 2: 776 (1891).
    Flora of Tropical East Africa
    • Rev. Gen. Pl. 2: 776 (1891)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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