Eragrostis caesia Stapf
  • Fl. Cap.


Cite taxon page as 'WFO (2020): Eragrostis caesia Stapf. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000867494. Accessed on: 15 Jul 2020'

Morphology

Densely caespitose perennial without rhizomes or stolons; culms up to 60 cm tall, erect, unbranched, glabrous at the nodes, eglandular; basal leaf sheaths glabrous, chartaceous, compressed and keeled, eglandular, persistent; ligule a line of hairs; leaf laminas 11–20 cm × 1.5–3 mm, linear and flat or more usually involute, filiform and flexuous, glabrous or pilose, eglandular.

  • Provided by: [A].Plants Of the World Online Portal - FZ
    • Source: [
    • 1
    • ]. 

    Panicle 8–15 cm long, linear to narrowly oblong with the branches appressed to the main axis (rarely somewhat spreading), the spikelets evenly distributed on pedicels 0.5–2 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.

  • Provided by: [A].Plants Of the World Online Portal - FZ
    • Source: [
    • 1
    • ]. 

    Spikelets 4–7 × 1.5–2(2.4) mm, narrowly oblong, laterally compressed, (2)4–7-flowered, the florets tardily disarticulating from below upwards, the rhachilla persistent; glumes unequal, keeled, narrowly oblong-lanceolate in profile, glabrous, subacute at the apex, the inferior 0.8–1.6 mm long, reaching to between (1/4)1/3 and c. 1/2 the way along the adjacent lemma, the superior 1.4–2.2 mm long, reaching nearly to the middle of the adjacent lemma; lemmas 2.7–3 mm long, keeled, oblong-lanceolate in profile, membranous with distinct lateral nerves, ± appressed to the rhachilla, those in opposite rows not imbricate, the rhachilla visible between them, pale olive-green to dark leaden-grey, scaberulous on the keel and on the back above, with conspicuous dark oil glands along the lateral nerves, acute or acuminate and sometimes mucronate at the apex; palea deciduous with the lemma, glabrous on the flanks, the keels slender, wingless, puberulous; anthers 3, 1–1.4 mm long.

  • Provided by: [A].Plants Of the World Online Portal - FZ
    • Source: [
    • 1
    • ]. 

    Caryopsis not seen.

  • Provided by: [A].Plants Of the World Online Portal - FZ
    • Source: [
    • 1
    • ]. 

    Densely tufted perennial 450-600 mm high; basal sheaths glabrous; culm without glands below nodes. Leaf blade to 200 x to 3 mm; eglandular. Inflorescence dense, contracted, branches usually ad- pressed to main axis, occasionally spreading; lowest branches not whorled. Spikelet 4-7 x 1.5-2.4 mm, rachilla persistent; lemma and paleas tardily breaking up from base upwards; glumes unequal, acute to subacute, reaching 1/4-1/2 up lemma above; lemma acute to acuminate, mucro sometimes present, lateral nerves distinct due to elongated black oil glands alongside; palea keels wingless, hairs less than 0.1 mm long; anthers 3, 1.0-1.4 mm long.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Perennial, densely tufted, up to 0.6 m high. Leaf blades up to 200 mm long, up to 3 mm wide. Spikelets 4-7 mm long, 1.5-2.4 mm wide. Inflorescence dense and contracted, branches usually appressed to main axis, occasionally spreading; spikelets tardily breaking up between florets; lemma with distinct elongated black patches along lateral nerves; palea keels with hairs shorter than 0.1 mm; anthers 3, 1.0-1.3 mm long.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Perennial; up to 0.6 m high; densely tufted. Leaf blades up to 200 mm x 3 mm. Flowers: panicle dense and contracted; branches usually appressed to main axis; occasionally spreading; spikelets 4-7 x 1.5-2.4 mm; spikelets tardily breaking up between florets; lemmas with distinct elongated black oil glands along lateral nerves; palea keels with hairs < 0.1 mm long; anthers 3; 1.0-1.3 mm long.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Habitat

    Cave sandstone; moist areas on shallow soil, and seepage areas in mountain grassland.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

    Moist areas on shallow soil, cave sandstone, and seepage areas in mountainous grassland.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Dry Grassland; Mesic Grassland; Zastron Moist Grassland. Moist areas on shallow soil; cave sandstone; and seepage areas in mountainous grassland.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 5
    • ]. 

    Distribution

    Zimbabwe. S, L, LIM, M, FS, KZN, ?NC, EC.

  • Provided by: [B].e-Flora of South Africa
    • Source: [
    • 2
    • ]. 

      Bibliography

    • 1 Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999
    • 2 Fish, L. (ed.). 2015. Eragrostis Wolf. Vol. 36. South African National Biodiversity Institute, Pretoria.
    • 3 Fl. Cap.
    • 4 Herman, PPJ; Retief, E. 1997. Plants of thenorthern provinces of South Africa: keys and diagnostic characters. Strelitzia 6: 1 - 681. National Botanical Institute, Pretoria.
    • 5 Retief, E; Meyer, NL. 2017. Poaceae. In: E Retief & NL Meyer (eds), Plants of the Free State: Inventory and identification guide. Strelitzia 38: 987 - 1107. South African National Biodiversity Institute, Pretoria.

     Information From

    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • A
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • B All Rights Reserved
    Poaceae
    • C CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).