1. Family: Poaceae Barnhart
    1. Genus: Snowdenia C.E.Hubb.
      1. Snowdenia polystachya (Fresen.) Pilg.

        This species is accepted, and its native range is NE. & E. Tropical Africa, Arabian Peninsula.

    [GB]
    Habit
    Annual. Culms decumbent; 15-180 cm long; rooting from lower nodes. Leaf-sheaths smooth; glabrous on surface, or pilose; with tubercle-based hairs. Ligule a ciliolate membrane. Leaf-blades linear, or lanceolate; 4-30 cm long; 2-18 mm wide.
    Inflorescences
    Synflorescence simple, or compound. Inflorescence composed of racemes; terminal and axillary. Racemes 1; single; multilateral; 2-5 cm long. Rhachis angular. Spikelet packing abaxial; irregular. Spikelets ascending; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 2-2.3 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 2-2.3 mm long; falling entire.
    Glume
    Glumes similar; shorter than spikelet; thinner than fertile lemma. Lower glume orbicular; 0.1 length of spikelet; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex truncate, or obtuse. Upper glume orbicular; 0.1 length of spikelet; hyaline; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex truncate, or obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 5 -veined; scabrous; rough on veins; entire, or dentate; 2 -fid; obtuse, or acute; awned. Awn of lower sterile floret 1-7 mm long. Fertile lemma elliptic; 2-3.3 mm long; membranous; without keel. Lemma margins flat; covering most of palea. Lemma apex truncate, or obtuse; muticous, or mucronate. Palea 0.5 length of lemma; hyaline; without keels.
    Distribution
    Africa: northeast tropical and east tropical. Asia-temperate: Arabia.
    Reference
    Paniceae. FTEA.
    [FTEA]

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

    Habit
    Annual; culms 15–180 cm. high, decumbent and rooting at the nodes below, robust and ascending or weak and rambling above.
    Leaves
    Leaf-blades linear to narrowly lanceolate, 4–30 cm. long, 2–18 mm. wide; sheaths smooth on the nerves, or with tubercle-based hairs near the top.
    Inflorescences
    Racemes 2–5 cm. long, axillary and distant or crowded into a false panicle.
    Spikelets
    Spikelets lanceolate-oblong, 2–3.3 mm. long; lower lemma abruptly acute, obtuse or minutely bidentate, with a slender awn 1–7 mm. long (rarely awnless); upper lemma obtuse or truncate, rarely mucronate.
    Habitat
    Introduced from Ethiopia as a fodder crop, and sometimes found as an escape; 2100–2700 m.
    Distribution
    K3 K4 T2

    Images

    Distribution

    Native to:

    Eritrea, Ethiopia, Kenya, Saudi Arabia, Sudan, Tanzania, Yemen

    Snowdenia polystachya (Fresen.) Pilg. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 1966 Schimper [91], Ethiopia K000281120 isotype
    Jun 1, 1966 Schimper [91], Ethiopia K000281121 isotype
    Jun 1, 1966 Schimper [91], Ethiopia K000281119 isotype
    Jun 1, 1966 Gay, Ethiopia K000281118 isotype
    Rueppell, Ethiopia K000281117

    First published in Notizbl. Bot. Gart. Berlin-Dahlem 14: 103 (1938)

    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.
    • 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.
    • Wood, J.R.I. (1997). A Handbook of the Yemen Flora: 1-434. 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.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.

    Literature

    Kew Backbone Distributions
    • 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.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    Flora of Tropical East Africa
    • D.M. Napper, Grasses of Tanganyika: 80 (1965).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 51 (1958).
    • F. W. Andr., The Flowering Plants of the Sudan 3: 538 (1956).
    • Pilg. in Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahelm 14: 103 (1938).

    Sources

    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

    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 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