1. Family: Poaceae Barnhart
    1. Genus: Digitaria Haller
      1. Digitaria flaccida Stapf

        This species is accepted, and its native range is Tanzania to S. Africa.

    [FTEA]

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

    Habit
    Densely tufted perennial, the base fibrous and tomentose; culms 30–100 cm. high, erect.
    Leaves
    Leaf-blades narrow, 5–30 cm. long, 1–3 mm. wide.
    Inflorescences
    Inflorescence loose or contracted, of 5–30 delicate racemes arranged on a central axis 10–30 cm. long, not whorled; racemes up to 5–10 cm. long, with a flexuous filiform rhachis naked for the lower 1/3–1/2 its length and bearing paired spikelets above (sometimes the larger branches bearing short secondary racemes); pedicels pubescent at the tip.
    Spikelets
    Spikelets narrowly elliptic, 2.5–4 mm. long; lower glume absent, or just discernible as a tiny hyaline rim; upper glume 1/2–2/3 as long as the spikelet, 3-nerved, bulging slightly downwards beside the pedicel-tip, appressed pubescent between the nerves or silky pilose all over, long ciliate on the margins with stiff silky purplish hairs; lower lemma as long as the spikelet, 5-nerved, with stiff silky purplish hairs on and between 1st and 2nd lateral nerves (often glabrous near the base), these becoming longer upwards and typically forming a long tuft at about the middle of the lemma, thereafter the nerves glabrous or pubescent but the margins becoming ciliate; fruit ellipsoid, pallid.
    Habitat
    Brachystegia wooded grassland; 900–1050 m.
    Distribution
    T7 T8 Zaire to South Africa
    [GB]
    Habit
    Perennial; caespitose. Butt sheaths glabrous, or pubescent; persistent and investing base of culm; with fibrous dead sheaths. Culms erect; 30-100 cm long. Ligule an eciliate membrane. Leaf-blades 5-30 cm long; 1-3 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 5-30; borne along a central axis; simply spaced, or closely spaced; flexuous; unilateral; 5-10 cm long. Central inflorescence axis 10-30 cm long. Rhachis wingless; angular. Raceme-bases filiform; 20-50 mm long. Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels unequal; pubescent; hairy at tip.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.5-4 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.5-4 mm long; falling entire.
    Glume
    Glumes one the lower absent or obscure; shorter than spikelet; thinner than fertile lemma. Upper glume elliptic; gibbous; 0.5-0.66 length of spikelet; membranous; without keels; 3 -veined. Upper glume surface pubescent, or pilose; hairy generally, or between veins. Upper glume margins ciliate. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 5 -veined; pilose; hairy below; hairy between veins (1st and 2nd laterals); with dorsal tufts of hair; 2 hair tufts in all; ciliate on margins (above); bearing purple hairs; acute. Fertile lemma elliptic; 2.5-4 mm long; cartilaginous; much thinner on margins; pallid; without keel. Lemma margins flat; covering most of palea. Lemma apex acute. Palea cartilaginous.
    Distribution
    Africa: west-central tropical, east tropical, southern tropical, and south.
    Reference
    Paniceae. FTEA.
    [FZ]

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

    Habit
    A tightly caespitose perennial, bulbously thickened base surrounded by woolly cataphylls and old leaf sheath remnants.
    Culms
    Culms 40–70 cm., erect, glabrous, nodes dark, glabrous.
    Leaf sheaths
    Leaf sheaths glabrous.
    Ligules
    Ligule c. 0.5 mm. long, truncate, shortly ciliate.
    Leaf lamina
    Leaf laminae 5–10 × 0.3–0.4 cm., linear, flat, scaberulous on the superior surface, glabrous on the inferior surface, scaberulous on the margin.
    Inflorescences
    Inflorescence composed of (6)10–17 racemes, 2–7 cm. long (incl. pedicel), few-flowered, long pedicelled, sometimes branched, a few together or all solitary along a long, well developed common axis.
    Rachis
    Rhachis triquetrous, scarcely winged, up to 0.4 mm. broad, smooth with smooth to scabrous margins.
    Pedicel
    Pedicels 2-nate, 1–3 mm. long, triangular to compressed, basally smooth, asymmetrically broadened at the apex, bearing a setulose coronula.
    Spikelets
    Spikelets (2.5)2.8–3.2(4.1) mm. long, oblong.
    Glume
    Inferior glume absent or obsolete. Superior glume c. | of the spikelet, oblong-triangular, 3-nerved, the central nerve poorly developed, basally conspicuously spurred, appressed hairy, hairs white to purple, stiff, acute.
    Inferior
    Inferior glume absent or obsolete. Inferior lemma as long as the spikelet, oblong with recurved margins, 5-nerved, appressed hairy, densely on the inferior half, in 4 rows on the superior half.
    Lemma
    Superior lemma as long as the spikelet, oblong, acuminate, basally spurred, but not gibbous, pale yellowish green. Inferior lemma as long as the spikelet, oblong with recurved margins, 5-nerved, appressed hairy, densely on the inferior half, in 4 rows on the superior half.
    Superior
    Superior lemma as long as the spikelet, oblong, acuminate, basally spurred, but not gibbous, pale yellowish green. Superior glume c. | of the spikelet, oblong-triangular, 3-nerved, the central nerve poorly developed, basally conspicuously spurred, appressed hairy, hairs white to purple, stiff, acute.

    Images

    Distribution

    Native to:

    Angola, Cape Provinces, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Swaziland, Tanzania, Zambia, Zaïre, Zimbabwe

    Digitaria flaccida Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    May 25, 1977 Buchanan, J. [88], South Africa K000281333 syntype
    Stolz, A. [1968], Tanzania K000281481
    Stolz, A. [1824], Tanzania K000281480
    Welwitsch [2634], Angola K000281372 isotype
    Welwitsch [2634], Angola K000281371 isotype
    Buchanan, J. [9], South Africa K000281332 syntype
    Homblé, H.A. [59], Zaire K000281449 holotype
    Apr 1, 1985 s.coll. [s.n.], Philippines Panicum nitens K000674310 paratype
    Sep 1, 1968 s.coll. [s.n.], Philippines Panicum nitens K000674311 paratype
    Sep 1, 1968 s.coll. [3756], Philippines Panicum nitens K000674333 lectotype
    s.coll. [3221], Philippines Panicum nitens K000674309

    First published in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 7: 382 (1898)

    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.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.

    Literature

    Kew Backbone Distributions
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Clayton, W.D. (1989). Flora Zambesiaca 10(3): 1-231. Royal Botanic Gardens, Kew.
    • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    Flora of Tropical East Africa
    • Stapf in Fl. Cap. 7: 382 (1898).

    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

    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