Scleria greigiifolia (Ridl.) C.B.Clarke
  • Fl. Trop. Afr.


Cite taxon page as 'WFO (2020): Scleria greigiifolia (Ridl.) C.B.Clarke. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000550378. Accessed on: 23 Feb 2020'

Diagnostic Description

Perennial, stout, aquatic with evergreen aerial parts. This species is distinguished from S. melanomphala by its leaves crowded towards the base of the culm, by its lax, copiously branched panicles, by its adaxially densely-hirsute female glumes and by its strongly-beaked achene which lacks a black apex.

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

    Morphology

    Perennial. Rhizome elongate or contracted, 6-10 mm thick; scales brown or reddish-brown. Culms: 1-2 m tall, glabrous. Leaves mostly crowded towards base of culm, 5-12 mm broad, tapering smoothly towards apex or, rarely, unequally laterally praemorse; glabrescent or hispidulous; sheaths with concave mouths, the margins minutely ciliate. Inflorescence with lax, copious terminal panicle c. 150 mm long and smaller lateral panicles 4-7 per node at 2-3 nodes exserted up to 200 mm from sheaths. Bracts foliaceous. Male spikelets sessile - shortly pedicillate, c. 5 mm long; glumes reddish-black proximally, castaneous distally; midrib hispidulous, margins setulose-ciliate. Female glumes similarly coloured, shortly awned, midrib and awn hispidulous, margins setulose-ciliate and distal half of adaxial surface with dense indumentum of stiff, upward-pointing hairs. Achene broadly ovoid, laterally compressed, strongly beaked, 6 x 3.5 mm; glabrous, smooth, pale brown or pinkish-brown sometimes with violet blotches; hypogynium zoniform, brown.

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

    Habitat

    Occurring in open permanent bogs or shallow lakes.

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

    Distribution

    Known for the FSA area from southern Natal coastbelt and from Eastern Shore, Lake St Lucia in northern Natal. Also in tropical Africa and Madagascar.

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

      Bibliography

    • 1 Fl. Trop. Afr.
    • 2 Hennessy, EF. 1985. The genus Scleria in southern Africa. Bothalia 15(3 & 4): 505 - 530.

     Information From

    Cyperaceae
    • A CC0 1.0 Universal (CC0 1.0).
    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
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).
    International Union for Conservation of Nature
    https://www.iucn.org/
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • D All Rights Reserved
    International Union for Conservation of Nature v.3
    https://www.iucnredlist.org/
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • E See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use