1. Family: Poaceae Barnhart
    1. Sehima Forssk.

      1. This genus is accepted, and its native range is Tropical & Subtropical Africa and Asia.

    [FTEA]

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

    Habit
    Annuals or perennials
    Leaves
    Leaf-blades linear; ligule a line of hairs
    Inflorescences
    Inflorescence a solitary raceme, terminal on the culm, exserted from the sheath; internodes and pedicels thickened, narrowly oblong-cylindrical, ciliate
    Spikelets
    Sessile spikelet usually ± laterally compressed; callus obtuse and inserted in the concave top of the internode; lower glume coriaceous, convex or concave and often medianly grooved on the back, without a midnerve, commonly 2-keeled, with a narrow membranous wing towards the apex, bidentate; upper glume boat-shaped, laterally compressed, with an apical bristle; lower floret ♂, with hyaline lemma and well-developed palea; upper lemma bidentate, passing between the teeth into an awn which is puberulous to ciliate along the coils; palea lanceolate, hyaline Pedicelled spikelet ♂ or barren, conspicuous, awnless.
    Sessile
    Sessile spikelet usually ± laterally compressed; callus obtuse and inserted in the concave top of the internode; lower glume coriaceous, convex or concave and often medianly grooved on the back, without a midnerve, commonly 2-keeled, with a narrow membranous wing towards the apex, bidentate; upper glume boat-shaped, laterally compressed, with an apical bristle; lower floret ♂, with hyaline lemma and well-developed palea; upper lemma bidentate, passing between the teeth into an awn which is puberulous to ciliate along the coils; palea lanceolate, hyaline
    Fruits
    Caryopsis lanceolate-oblong, concave on one side
    Pedicelled
    Pedicelled spikelet ♂ or barren, conspicuous, awnless.
    [GB]

    nonem

    Habit
    Annual (1), or perennial (4). Culms erect (1/2), or geniculately ascending (1/2); 20-83-180 cm long; firm (4), or wiry (1). Ligule a fringe of hairs. Leaf-blade margins cartilaginous (1/1).
    Inflorescences
    Inflorescence composed of racemes. Racemes single. Rhachis fragile at the nodes; flattened (4), or semiterete (1). Rhachis internodes columnar (2), or cuneate (3). Rhachis internode tip oblique; cupuliform (1), or crateriform (4). Spikelets squeezed between internode and pedicel (3), or appressed (2); in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear (1), or cuneate (4); tip rectangular.
    Spikelets
    Companion sterile spikelets well-developed; separately deciduous. Companion sterile spikelet glumes muticous (2/2). Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (1), or lanceolate (3), or elliptic (1); laterally compressed (2), or dorsally compressed (3); 6-11.1-15 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus square; glabrous (2), or pilose (3); base obtuse; attached obliquely (1), or inserted (4).
    Sterile
    Companion sterile spikelets well-developed; separately deciduous. Companion sterile spikelet glumes muticous (2/2).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (1), or lanceolate (3), or elliptic (1); laterally compressed (2), or dorsally compressed (3); 6-11.1-15 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus square; glabrous (2), or pilose (3); base obtuse; attached obliquely (1), or inserted (4).
    Glume
    Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume linear (1), or lanceolate (2), or elliptic (1), or ovate (1); coriaceous; 2-keeled; wingless (2), or winged on keel (3); 5 -veined (1/2), or 8 -veined (1/2). Lower glume intercarinal veins distinct (1), or absent below, prominent above (4). Lower glume surface convex (2), or flat (2), or concave (1), or with a longitudinal median groove (1), or deeply depressed (2); smooth (4), or scabrous (1). Lower glume apex dentate; 2 -fid; setaceously attenuate (1/1); muticous (2), or mucronate (2), or awned (1). Upper glume lanceolate (3), or elliptic (2); chartaceous; 1-keeled; wingless (4), or winged on keel (1); 3-4 -veined (1/4), or 5 -veined (3/4), or 7 -veined (1/4). Upper glume apex acute; awned; 1 -awned.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret lanceolate (3), or oblong (2); hyaline; 2 -veined. Fertile lemma lanceolate (2), or oblong (3); hyaline; without keel; 3 -veined. Lemma margins ciliate. Lemma apex lobed; 2 -fid; incised 0.25-0.342-0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate. Column of lemma awn glabrous (3), or hispidulous (1), or ciliate (1). Palea 1 length of lemma; hyaline; without keels (2), or 2-keeled (3).
    Flowers
    Anthers 3 (3/3).
    Distribution
    Africa (3), or Temperate Asia (2), or Tropical Asia (4), or Australasia (1).
    [FZ]

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

    Habit
    Annual or perennial; ligule a line of hairs.
    Inflorescences
    Inflorescence a single terminal raceme, exserted from the uppermost leaf sheath; rhachis internodes and pedicels stoutly linear to subclavate, ciliate.
    Spikelets
    Sessile spikelet laterally or dorsally compressed to ± square in section, fitting between the internode and pedicel; callus obtuse and inserted into the concave top of the internode; inferior glume coriaceous, concave or with a median groove, laterally 2-keeled or lyrate with the keels becoming dorsal towards the base, scarcely winged, bifid at the apex; superior glume awned; inferior floret male and with a palea; superior lemma bifid, awned from between the teeth with an awn puberulous to ciliate along the edges of the coils. Pedicelled spikelet large, lanceolate, strongly dorsally compressed, distinctively lyrate-nerved.
    Fruits
    Caryopsis lanceolate-oblong, dorsally compressed, concave on one side.

    Images

    Distribution

    Native to:

    Angola, Assam, Bangladesh, Botswana, Burkina, Cameroon, Cape Verde, Chad, China South-Central, Djibouti, Eritrea, Ethiopia, Hainan, India, Jawa, Kenya, KwaZulu-Natal, Laos, Lesser Sunda Is., Malawi, Mali, Mozambique, Myanmar, Namibia, New Guinea, Nicobar Is., Niger, Nigeria, Northern Provinces, Oman, Pakistan, Philippines, Saudi Arabia, Somalia, Sri Lanka, Sudan, Sulawesi, Swaziland, Tanzania, Thailand, Uganda, Vietnam, West Himalaya, Yemen, Zambia, Zimbabwe

    Sehima Forssk. appears in other Kew resources:

    First published in Fl. Aegypt.-Arab.: 178 (1775)

    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
    • F.T.A. 9: 35 (1917).
    • Fl. Aegypt.-Arab. 178 (1775)
    Flora Zambesiaca
    • Fl. Aegypt.-Arab.: 178 (1775).
    Flora of Tropical East Africa
    • Fl. Aegypt.-Arab.: 178 (1775)

    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