1. Family: Poaceae Barnhart
    1. Genus: Valiha S.Dransf.
      1. Valiha diffusa S.Dransf.

        This species is accepted, and its native range is Madagascar.

    [GB]
    Habit
    Perennial; culms solitary. Rhizomes elongated; pachymorph. Culms erect; slender; inclined at the tip; 600-1000 cm long; 60-100 mm diam.; woody. Culm-internodes terete; thin-walled; 40-80 cm long; light green, or mid-green, or dark green; distally glabrous, or pubescent. Lateral branches dendroid; extravaginal. Bud complement 1. Branch complement many; in a clump; apparently arising below the node; with 1 branch dominant. Culm-sheaths 16-20 cm long; 1 times as long as wide; pubescent; with dark brown hairs; auriculate; setose on shoulders. Culm-sheath ligule ciliolate. Culm-sheath blade linear; constricted at base; erect; 5 cm long; pubescent; attenuate. Leaves 7-10 per branch. Leaf-sheaths glabrous on surface; outer margin glabrous, or hairy. Ligule a ciliolate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 6-8 cm long; 11-14 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy. Leaf-blade apex attenuate.
    Inflorescences
    Synflorescence bractiferous; paniculate; 3-6 cm long; lax; with glumaceous subtending bracts; without axillary buds at base of spikelet; prophyllate below lateral spikelets; with 2-keeled prophylls. Spikelets appressed, or ascending.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension, or with a barren rhachilla extension. Spikelets linear; subterete, or laterally compressed; compressed slightly; 12-35 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated between glumes. Rhachilla elongation 1-2 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension, or with a barren rhachilla extension. Spikelets linear; subterete, or laterally compressed; compressed slightly; 12-35 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated between glumes. Rhachilla elongation 1-2 mm long.
    Glume
    Glumes several; 4-5 empty glumes; persistent; similar; shorter than spikelet. Lower glume ovate; 1-2 mm long; chartaceous; without keels; 15 -veined. Lower glume surface glabrous. Lower glume apex acuminate. Upper glume ovate; 9-11 mm long; chartaceous; without keels; 17 -veined. Upper glume surface glabrous, or pilose. Upper glume margins eciliate. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret similar to fertile lemma; ovate; 15-20 mm long; chartaceous; 23-27 -veined; glabrous, or pilose; acute. Fertile lemma lanceolate, or ovate; 18-26 mm long; 8-12 mm wide; chartaceous; without keel; 29-41 -veined. Lemma surface glabrous, or pilose. Lemma apex acute. Palea tightly convolute around flower; 14-24 mm long; chartaceous; 16-22 -veined. Palea keels contiguous above a sulcus. Palea apex dentate; 2 -fid. Rhachilla extension 0-3 mm long; pubescent.
    Flowers
    Lodicules 3; 1-3 mm long; membranous; acute. Anthers 6; 15 mm long. Stigmas 3. Styles 15 mm long.
    Fruits
    Caryopsis with tardily free pericarp; oblong; 10 mm long. Embryo with basal plumule.
    Distribution
    Africa: western Indian ocean.
    Reference
    Bambuseae. Dransfield 1998.

    Images

    Distribution

    Native to:

    Madagascar

    Valiha diffusa S.Dransf. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 1, 1996 Dransfield, S. [SD1347], Madagascar K000795276
    Mar 1, 1996 Perrier de la Bâthie, J.M.H.A. [159], Madagascar K000975033 isotype
    Dransfield, S. [913], Madagascar 66857.000
    Dransfield, S. [1065], Madagascar 66929.000

    First published in Kew Bull. 53: 381 (1998)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

    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 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