Lolium perenne L.

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Synonyms: Lolium brasilianum Nees
Common names: Perennial ryegrass (English)
A caespitose perennial. Similar in habit to the preceding species. Leaf-laminae 3-20 cm. x 0·2-0·6 mm. Spikes 4-30 cm. long, stiff, slender to somewhat stout. Spikelets 7-20 mm. long, 4-14-flowered, elliptic to obovate-elliptic in lateral view. Superior glume shorter than the rest of the spikelet, 5-7-nerved, narrowly lanceolate to oblong-lanceolate, with the apex usually obtuse, smooth. Lemmas 5-7 mm. long, 5-nerved, muticous, imbricate, ovate-oblong or oblong, apex acute to sub-obtuse. Paleas with the keels scaberulous. Anthers 3-4 mm. long. Caryopsis c. 4·5 mm. long.
Derivation of specific name:
Habitat: Growing as a weed in waste places, in arable land, roadsides, on sandy soil and on the edges of irrigated fields
Altitude range: (metres)
Flowering time:
Worldwide distribution: throughout Europe, North Africa and the temperate areas of Asia, introduced into other temperate and subtropical parts of the globe, Zimbabwe
Zimbabwe distribution: C,E
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Jackson, G. & Wiehe, P.O. (1958). An Annotated Check List of Nyasaland Grasses The Government Printer, Zomba, Nyasaland Page 68.

Launert, E. (1971). Poaceae Flora Zambesiaca 10(1) Pages 43 - 45. (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 106.

Other sources of information about Lolium perenne:

External websites:

African Plants: A Photo Guide (Senckenberg): Lolium perenne
African Plant Database: Lolium perenne
BHL (Biodiversity Heritage Library): Lolium perenne
EOL (Encyclopedia of Life): Lolium perenne
GBIF (Global Biodiversity Information Facility): Lolium perenne
Google: Web - Images - Scholar
iNaturalist: Lolium perenne
IPNI (International Plant Names Index): Lolium perenne
JSTOR Plant Science: Lolium perenne
Mansfeld World Database of Agricultural and Horticultural Crops: Lolium perenne
Plants of the World Online: Lolium perenne
Tropicos: Lolium perenne
Wikipedia: Lolium perenne

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Zimbabwe: Species information: Lolium perenne., retrieved 18 May 2024

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