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  1. Family: Poaceae Barnhart
    1. Loudetia Hochst. ex Steud.

      1. This genus is accepted, and its native range is Tropical & S. Africa, Madagascar, S. Arabian Peninsula, Bolivia to Brazil and Paraguay.

    [FTEA]

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

    Habit
    Perennials or rarely annuals, mostly erect
    Leaves
    Leaf-blades linear, flat or rolled, not crinkled on the margin; ligule a ciliate fringe
    Inflorescences
    Inflorescence a panicle, open or contracted, rarely spike-like
    Spikelets
    Spikelets solitary or in pairs (sometimes loose clusters of 3 in L. phragmitoides), brown, disarticulating below the upper floret, and tardily so below the lower which is ♂ or rarely barren; glumes chartaceous to coriaceous, 3-nerved, ± persistent, the upper as long as the spikelet, the lower 1/4–2/3 as long; lower lemma similar to the upper glume, 3-nerved; upper lemma oblong-elliptic, thinly coriaceous, glabrescent to pilose, 5–9-nerved, ± bidentate, with a deciduous (except L. phragmitoides) geniculate awn from the sinus; callus oblong to linear, truncate, 2-toothed or obliquely pungent; palea-keels with thickened nerves, wingless; stamens 2–3
    Fruits
    Caryopsis lanceolate, glabrous, the hilum linear.
    [GB]

    nonem

    Habit
    Annual (9), or perennial (16). Rhizomes absent (24), or short (1). Culms erect (18/19), or geniculately ascending (7/19), or prostrate (1/19); slender (3/3); 15-91.2-400 cm long; firm (23), or wiry (2); rooting from lower nodes (1/1). Culm-nodes flush with internodes (1/1). Lateral branches lacking (6/8), or sparse (2/8), or ample (1/8). Ligule a fringe of hairs. Leaf-blades filiform (5), or linear (23); stiff (6), or firm (19).
    Inflorescences
    Inflorescence a panicle; terminal (24), or terminal and axillary (1). Panicle open (10), or contracted (11), or spiciform (5). Primary panicle branches not whorled (23), or whorled at most nodes (2). Spikelets appressed (3/3); solitary (23), or in pairs (2), or in threes (2). Fertile spikelets pedicelled; 3 in the cluster (1/1). Pedicels filiform (1/5), or oblong (4/5).
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (4), or lanceolate (21), or oblong (4); laterally compressed; 6-11.7-32 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident (16), or elongated (9); glabrous (2), or pubescent (13), or bearded (10); truncate (13), or acute (2), or pungent (3), or unequally 2-toothed (3), or 2-toothed (6).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (4), or lanceolate (21), or oblong (4); laterally compressed; 6-11.7-32 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident (16), or elongated (9); glabrous (2), or pubescent (13), or bearded (10); truncate (13), or acute (2), or pungent (3), or unequally 2-toothed (3), or 2-toothed (6).
    Glume
    Glumes persistent; shorter than spikelet (3), or reaching apex of florets (17), or exceeding apex of florets (5); thinner than fertile lemma; parallel to lemmas (21), or gaping (4). Lower glume lanceolate (7), or elliptic (2), or oblong (2), or ovate (16); chartaceous; without keels; 3 -veined. Lower glume surface glabrous (13), or puberulous (1), or pilose (2), or hispid (1), or setose (15). Lower glume apex entire (23), or dentate (3); 2 -fid (1/3), or 3 -fid (2/3); truncate (1/23), or obtuse (14/23), or acute (9/23), or acuminate (4/23), or setaceously attenuate (1/23); muticous (22), or mucronate (3). Upper glume lanceolate (24), or oblong (1); chartaceous; without keels; 3 -veined, or 4-5 -veined (1). Upper glume surface smooth (24), or asperulous (1); glabrous (16), or pilose (3), or hispid (1), or setose (11); with tubercle-based hairs (15/15). Upper glume apex truncate (8), or obtuse (11), or acute (5), or acuminate (5), or caudate (2); muticous (24), or mucronate (1).
    Florets
    Basal sterile florets male (23), or barren (2); with palea (24), or without significant palea (1). Lemma of lower sterile floret lanceolate (23), or oblong (2), or ovate (1); chartaceous (4/4); 3 -veined, or 4-5 -veined (1); emarginate (1), or truncate (3), or obtuse (6), or acute (13), or acuminate (8), or attenuate (1), or setaceously attenuate (1). Palea of lower sterile floret wingless (22/24), or winged on keels (2/24). Fertile lemma elliptic (3), or oblong (22); coriaceous; without keel; 5 -veined (8), or 6 -veined (3), or 7 -veined (18), or 9 -veined (2). Lemma lateral veins obscure (5/5). Lemma surface pubescent (24), or villous (1). Lemma margins involute; interlocking with palea keels. Lemma apex entire (6), or dentate (16), or lobed (4); 2 -fid (20/20); incised 0.1-0.175-0.2 of lemma length; emarginate (4/22), or obtuse (1/22), or acute (18/22); awned; 1 -awned. Principal lemma awn apical (4), or from a sinus (22); flexuous (1), or geniculate (24). Column of lemma awn glabrous (16/24), or puberulous (6/24), or pubescent (1/24), or hirsute (1/24). Palea 2 -veined. Palea keels approximate; thickened. Palea surface glabrous (23), or pubescent (2).
    Flowers
    Anthers 2 (21), or 3 (4).
    Fruits
    Caryopsis with adherent pericarp; fusiform (1/1). Hilum linear (5/5).
    Distribution
    Africa (24), or Temperate Asia (1), or South America (1).
    [FZ]

    Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

    Inflorescences
    Panicle open, contracted or spiciform, bearing spikelets singly or in pairs.
    Spikelets
    Spikelets brown, disarticulating beneath the superior floret and tardily so beneath the inferior.
    Lemma
    Inferior lemma 3-nerved. Superior lemma bidentate, with a deciduous (except L. phragmitoides) awn from the sinus; callus oblong to linear, truncate, 2-toothed or obliquely pungent; palea not winged.

    Images

    Distribution

    Native to:

    Angola, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cameroon, Cape Provinces, Caprivi Strip, Central African Repu, Chad, Congo, Equatorial Guinea, Ethiopia, Free State, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Oman, Paraguay, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Myanmar

    Accepted Species

    Other Data

    Loudetia Hochst. ex Steud. appears in other Kew resources:

    Bibliography

    First published in Syn. Pl. Glumac. 1: 238 (1854)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa

    • Clayton in Kew Bull. 21: 122 (1967).
    • Phipps in Kirkia 4: 98 (1964)
    • Conert in Engl., Bot. Jahrb. 77: 247 (1957)
    • F.T.A. 10: 12 (1937)
    • C. E. Hubbard in Kew Bull. 1936: 319
    • Syn. Pl. Glum. 1: 238 (1854)
    • A. Br. in Flora 24: 713 (1841), nom. superfl.

    Flora Zambesiaca

    • Syn. Pl. Glum. 1: 238 (1854) nom. conserv.

    Flora of Tropical East Africa

    • Phipps in Kirkia 4: 98 (1964)
    • Conert in E.J. 77: 247 (1957)
    • in F.T.A. 10: 12 (1937)
    • Hubbard in K.B. 1936; 319 (1936)
    • Syn. Pl. Glum. 1: 238 (1854)
    • A. Braun in Flora 24: 713 (1841), nom. illegit.

    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 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