1. Family: Poaceae Barnhart
    1. Genus: Sorghum Moench
      1. Sorghum purpureosericeum (Hochst. ex A.Rich.) Schweinf. & Asch.

        This species is accepted, and its native range is Mali to Eritrea and Tanzania, S. Arabian Peninsula, India.

    [FTEA]

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

    Habit
    Annual; culms 30–150 cm. high, the nodes bearded.
    Leaves
    Leaf-blades 10–50 cm. long, 2–10 mm. wide.
    Inflorescences
    Panicle narrowly oblong, 5–35 cm. long; primary branches whorled, simple (rarely the longer branched), bearing racemes of 3–5 spikelet pairs.
    Spikelets
    Sessile spikelet lanceolate, 7.5–10 mm. long; lower glume coriaceous, glossy, reddish brown to black, glabrous or sometimes densely villous, bearded from the callus with white to rufous hairs; awn 20–40 mm. long. Pedicelled spikelet linear to lanceolate, 6–10 mm. long, greenish.
    Sessile
    Sessile spikelet lanceolate, 7.5–10 mm. long; lower glume coriaceous, glossy, reddish brown to black, glabrous or sometimes densely villous, bearded from the callus with white to rufous hairs; awn 20–40 mm. long.
    Pedicelled
    Pedicelled spikelet linear to lanceolate, 6–10 mm. long, greenish.
    Habitat
    Riverine or lakeside alluvial soils and on black clays; 500–1500 m.
    Distribution
    K1 K4 K7 T1 T2 T4 U1 Nigeria to Ethiopia
    [GB]
    Habit
    Annual. Culms erect; 30-150 cm long. Culm-nodes bearded. Leaves cauline. Ligule a ciliolate membrane; pilose on abaxial surface. Leaf-blades 10-50 cm long; 2-10 mm wide.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; oblong; 5-35 cm long. Primary panicle branches whorled at most nodes; simple. Racemes bearing 3-5 fertile spikelets on each. Rhachis fragile at the nodes; ciliate on margins. Rhachis hairs white, or red; 2-3 mm long. Rhachis internodes filiform; 5 mm long. Rhachis internode tip transverse; cupuliform. Spikelets 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; male; linear to lanceolate; 6-10 mm long; shorter than fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; muticous. Companion sterile spikelet lemmas enclosed by glumes. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 7.5-10 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus bearded; base obtuse. Spikelet callus hairs white, or red.
    Sterile
    Companion sterile spikelets well-developed; male; linear to lanceolate; 6-10 mm long; shorter than fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; muticous. Companion sterile spikelet lemmas enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 7.5-10 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus bearded; base obtuse. Spikelet callus hairs white, or red.
    Glume
    Glumes dissimilar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma; shiny. Lower glume ovate; 1 length of spikelet; coriaceous; dark brown, or black; without keels; keel-less except near apex. Lower glume surface glabrous. Lower glume apex acute. Upper glume ovate; coriaceous; without keels. Upper glume surface glabrous.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 0.8 length of spikelet; hyaline; 2 -veined; ciliolate on margins. Fertile lemma oblong; 3-6 mm long; hyaline; 1 -veined. Lemma margins ciliate. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 20-40 mm long overall; with twisted column. Column of lemma awn pubescent; hairy on the spiral. Palea absent or minute.
    Flowers
    Lodicules 2; ciliate.
    Distribution
    Africa: west tropical, west-central tropical, northeast tropical, and east tropical. Asia-temperate: Arabia. Asia-tropical: India.
    Reference
    Andropogoneae. FTEA.
    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Habit
    Annual up to 1 m. high
    Ecology
    Clay soils.
    [GB]
    Habit
    Annual. Culms erect; 80-150 cm long. Culm-nodes bearded. Ligule a ciliolate membrane; pilose on abaxial surface. Leaf-blades 10-50 cm long; 2-10 mm wide.
    Inflorescences
    Inflorescence a panicle with branches tipped by a raceme. Panicle open; oblong; 10-20 cm long. Primary panicle branches whorled at most nodes; simple. Racemes bearing 2-4 fertile spikelets on each. Rhachis fragile at the nodes; ciliate on margins. Rhachis hairs white, or red. Rhachis internodes filiform. Rhachis internode tip transverse; cupuliform. Spikelets 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; male; linear to lanceolate; 5-7 mm long; shorter than fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; muticous. Companion sterile spikelet lemmas enclosed by glumes. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5.5-8 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus bearded; base obtuse. Spikelet callus hairs white, or red.
    Sterile
    Companion sterile spikelets well-developed; male; linear to lanceolate; 5-7 mm long; shorter than fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; muticous. Companion sterile spikelet lemmas enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 5.5-8 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus bearded; base obtuse. Spikelet callus hairs white, or red.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma; shiny. Lower glume ovate; 1 length of spikelet; coriaceous; dark brown, or black; without keels; keel-less except near apex. Lower glume surface villous. Lower glume hairs 3-4 mm long. Lower glume apex dentate; 2 -fid; rostrate. Upper glume ovate; coriaceous; without keels.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; hyaline. Fertile lemma oblong; 2-4 mm long; hyaline; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 20-40 mm long overall; with twisted column. Column of lemma awn pubescent; hairy on the spiral. Palea absent or minute.
    Distribution
    Asia-temperate: Arabia. Asia-tropical: India.
    Reference
    Andropogoneae. Fl Arabia 2007.

    Images

    Distribution

    Native to:

    Burkina, Cameroon, Chad, Eritrea, Ethiopia, India, Kenya, Mali, Nigeria, Oman, Somalia, Sudan, Tanzania, Uganda, Yemen

    Sorghum purpureosericeum (Hochst. ex A.Rich.) Schweinf. & Asch. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 1, 1975 Abdallah, F.C. [10784], Uganda K000511923
    Greenway, P.J. [3370], Tanzania K000511927
    Bullock, A.A. [2406], Tanzania K000511928
    Chevalier, A. [9794], Chad K000731291
    Myers, J.G. [9904], Sudan K000511914
    Gilbert, M.G. [8667], Ethiopia K000511918
    Bogdan, A. [2246], Kenya K000511926
    Thomas, A.S. [3066], Uganda K000511924
    Schweinfurth, G. [1033], Ethiopia K000280776 isotype
    Friis, I. [9216], Ethiopia K000511917
    Schimper [1551], Ethiopia K000280777 isosyntype
    Schimper [1551], Ethiopia K000280778 isosyntype
    Schimper [1417], Ethiopia K000280781 isotype
    Ethiopia K000280779
    Fotius, G. [934], Chad K000511921
    Fotius, G. [2333], Cameroon K000511922
    Pappi, A. [336], Eritrea K000511919
    Broun, Sudan K000280775 holotype
    Quarton-Dillon [209], Ethiopia K000280780 isosyntype
    Peers, A.W. [07], Sudan K000511915
    Magaji, S.O. [192], Nigeria K000511929
    Muasya, J. [375], Kenya K000511925
    Eagleton, G. [43], Somalia K000511920
    Berhir, E. [34], Sudan K000511916
    Oche, M.O. [126], Nigeria K000511930
    Jan 1, 1954 Woodrow, G.M. [129], India Sorghum deccanense K000245844 syntype
    Duthie, J. F. [10025], Madhya Pradesh Sorghum deccanense K000245618 syntype
    Duthie, J. F. [8538], Madhya Pradesh Sorghum deccanense K000245619 syntype
    Woodrow, G.M. [129], India Sorghum deccanense K000245617 syntype

    First published in G.Schweinfurth, Beitr. Fl. Aethiop.: 310 (1867)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Cope, T.A., Knees, S.G. & Miller, A.G. (2007). Flora of the Arabian peninsula and Socotra 5(1): 1-387. Edinburgh University Press.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.

    Literature

    Flora of West Tropical Africa
    • F.T.A. 9: 139.
    • Beitr. Fl. Aethiop. 302, 310 (1867)
    Kew Backbone Distributions
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Cope, T.A., Knees, S.G. & Miller, A.G. (2007). Flora of the Arabian peninsula and Socotra 5(1): 1-387. Edinburgh University Press.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    Flora of Tropical East Africa
    • Clayton in Flora of West Tropical Africa, ed. 2, 3: 467 (1972).
    • D.M. Napper, Grasses of Tanganyika: 96 (1965).
    • K.W. Harker & D.M. Napper, An Illustrated Guide to the Grasses of Uganda p. 55 (1960).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 55 (1958).
    • F. W. Andr., The Flowering Plants of the Sudan 3: 543 (1956).
    • Eggeling, Ann. list grasses Ug.: 44 (1947).
    • Stapf in Flora of Tropical Africa 9: 139 (1917).
    • Aschers. & Schweinf. in Schweinf., Beitr. Fl. Aeth.: 302, 310 (1867).

    Sources

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

    Flora of West Tropical Africa
    Flora of West Tropical 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

    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    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