e-Key <span id="jodit_selection_marker_1709631356193_7003061420207484" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Fe<span id="jodit_selection_marker_1709631356193_41116040898497275" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>stuca
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Pooideae - Poeae - Festuca L.

Description:

  • Annual or perennial, tufted or decumbent, rhizomatous; sometimes dioecious
  • Leaf blade expanded, folded or rolled, linear to linear-lanceolate, often auricled; sheaths often splitting into fibres at base with age; ligule an unfringed membrane, often conspicuous
  • Inflorescence an open or contracted panicle, sometimes spike-like; spikelets solitary, not secund, pedicelled
  • Spikelet 6-20 mm long, laterally compressed, disarticulating above glumes, rachilla extension present; glumes unequal, shorter than spikelet, similar, membranous, awnless, lanceolate to ovate-lanceolate, acute or obtuse, 1-3-nerved or upper glume (1-)3-5-nerved, keeled to rounded, often scabrid on keel
  • Florets (rarely 1)2-14, bisexual or uppermost floret reduced and sterile; lemma 3.5-11.0 mm long, similar to firmer than glumes, lanceolate, rounded on back, at least at base, membranous, usually glabrous, rarely shortly hairy, 3-7-nerved, tip firm, acute, entire, awnless or awned at apex or rarely below; awn straight, usually shorter than body of lemma; palea ± equal to lemma, lanceolate, 2-keeled, almost hyaline, keels ± scaberulous
  • Lodicules 2, unequally 2-lobed, hyaline
  • Stamens 3
  • Ovary minutely hairy upwards or only at apex, rarely glabrous; styles distinct, very short, terminal or subterminal, plumose
  • x = 7 (high polyploidy)

Nomenclature:

  • Festuca L.
    • Linnaeus: 73 (1753)
    • Stapf: 719 (1900)
    • Chippindall: 53 (1955)
    • Clayton: 56 (1970)
    • Launert: 54 (1971)
    • Clayton & Renvoize: 93 (1986)
    • Linder: 61 (1986)
    • Gibbs Russell et al.: 168 (1990)
    • Watson & Dallwitz: 409 (1994)
  • Pseudobromus K.Schum.
    • Schumann: 108 (1895)
    • Clayton: 53 (1970)

Distribution & Notes:

  • Global: Species ± 450, temperate areas throughout the world, extending through tropics on mountain tops
  • Southern Africa: Species 9, mainly high eastern regions

References:

  • CHIPPINDALL, L.K.A. 1955. A guide to the identification of grasses in South Africa. In D. Meredith, The grasses and pastures of South Africa. Central News Agency, Cape Town
  • CLAYTON, W.D. 1970. Flora of tropical East Africa. Gramineae (Part 1)
  • CLAYTON, W.D. & RENVOIZE S.A. 1986. Genera graminum. Grasses of the world. Kew Bulletin. Additional series 13
  • GIBBS RUSSELL, G.E., WATSON, L., KOEKEMOER, M., SMOOK, L., BARKER, N.P., ANDERSON, H.M. & DALLWITZ. M.J. 1990. Grasses of southern Africa. Memoirs of the Botanical Survey of South Africa No. 58
  • LAUNERT, E. 1971. Gramineae. Flora zambesiaca 10, 1
  • LINDER, H.P. 1986. Diverse notes on southern African Pooids. Bothalia 16
  • LINNAEUS, C. 1753. Species plantarum. Laurentius Salvius, Stockholm
  • SCHUMANN, K. M. 1895. In A. Engler, Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete 5C. Reimer, Berlin
  • STAPF, O. 1898-1900. Gramineae. Flora capensis 7
  • WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon