1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis hedbergii Melderis

        This species is accepted, and its native range is Kenya (Mt. Kenya).

    [GB]
    Habit
    Perennial; caespitose. Rhizomes elongated. Culms geniculately ascending; 35-45 cm long; rooting from lower nodes. Ligule an eciliate membrane; 3-6 mm long. Leaf-blades 3-6 cm long; 1-2 mm wide; stiff. Leaf-blade surface ribbed; scaberulous. Leaf-blade margins scaberulous. Leaf-blade apex acuminate; hardened.
    Inflorescences
    Inflorescence a panicle. Peduncle antrorsely scabrous above. Panicle spiciform; oblong; 5-6 cm long; 0.8-1.2 cm wide. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4.5-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 1.2-1.5 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4.5-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 1.2-1.5 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 4.5-5 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 4.5-5 mm long; 1.6-1.8 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume primary vein scaberulous. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 2.5-3 mm long; membranous; without keel; 5 -veined. Lemma lateral veins excurrent. Lemma surface asperulous; rough above. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; straight; 2 mm long overall; not or scarcely exserted from spikelet. Palea hyaline; 2 -veined.
    Flowers
    Lodicules 2; lanceolate; membranous. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Endosperm farinose. Disseminule comprising a floret.
    Distribution
    Africa: east tropical.
    Reference
    Aveneae. FTEA.
    [FTEA]

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

    Habit
    Loosely tufted perennial with slender creeping rhizomes.
    Culms
    Culms 35–45 cm. high, slender, scaberulous, ascending, rooting and branched at the lower nodes.
    Leaves
    Leaf-blades up to 6 cm. long and 2 mm. wide, firm, ± scaberulous, with a subpungent tip; ligules 3–6 mm. long.
    Inflorescences
    Panicle erect, narrowly oblong, 5–6 cm. long and 0.8–1.2 cm. wide, spike-like.
    Spikelets
    Spikelets narrowly lanceolate, 4.5–5 mm. long, purplish; glumes narrowly lanceolate, minutely scaberulous on the keel above, acuminate; lemma 2.5–3 mm. long, firmly membranous, asperulous towards the apex, 5-nerved, the laterals excurrent into 4 mucros; awn ± 2 mm. long, arising at about the middle of the back; callus-hairs 3.5 mm. long, exceeding the floret.
    Habitat
    Upland moor in rock crevice; 4250 m.
    Distribution
    K4 known only from the type-gathering

    Images

    Distribution

    Calamagrostis hedbergii Melderis appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mabberley, D.J. [501], Kenya K000333274
    Hedberg, O. [1810], Kenya K000367393

    First published in Svensk Bot. Tidskr. 50: 544 (1956)

    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.
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.

    Literature

    Kew Backbone Distributions
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.
    Flora of Tropical East Africa
    • Meld. in Svensk. Bot. Tidskr. 50: 544 (1956).

    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