Festuca of North America

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S. G. Aiken, M. J. Dallwitz, C. L. McJannet, and L. L. Consaul

Festuca rubra var. trichophylla Ducros ex Gaud.

Nomenclature

TRICHOPHYLLA, an introduced, slender creeping, cultivar of red fescue.

Fl. Helv. 1: 288. 1828. F. trichophylla (Ducros ex Gaud.) K. Richter, Pl. Eur. 1: 100. 1890.

Treated as a distinct species (Markgraf-Dannenberg 1980). The following information was obtained from that source.

Habit. Plants deep green, 40–70 cm high, not densely tufted (laxly caespitose), tiller bases not stiffly erect, bases purplish (reddish), horizontal rooting stems present. Vegetative shoots arising outside, or breaking through the base of existing sheaths.

Vegetative morphology. Sheaths glabrous (pinkish), not conspicuous at the base of the plant, splitting between the veins, closed more than half their length. Leaf blades plicate; 0.3–0.5(–0.6) mm deep (scabrid above, more or less hairy, subacute). Abaxial sclerenchyma well developed (rather stout, subequal, rarely confluent). Ribs not very prominent.

Floral morphology. Inflorescence paniculate (rather lax but narrow, branches very slender), 6–10 cm long. Spikelets 7–8.6 mm wide (green). Second glume 4.9–5.4 mm long (1.6–2 mm wide, oblong lanceolate, accuminate). Lemma 3.4–4.3 mm long (0.8–1.2 mm wide, linear-lanceolate, glabrous, often dark below the apex); apex entire. Lemma awn present (usually very short).

Cytology. 2n = 42.

Habitat and Distribution. Introduced; meadows.

Notes

Plants have been grown under this name as an experimental cultivar at Beaverlodge, Alberta (N. Fairey, personal cummunication 1995).


The interactive key provides access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting specified attributes, and summaries of attributes within groups of taxa.

Cite this publication as: ‘Aiken, S.G., Dallwitz, M.J., McJannet, C.L. and Consaul, L.L. 1996 onwards. Festuca of North America: descriptions, illustrations, identification, and information retrieval. Version: 19th October 2005. http://delta-intkey.com’. Aiken, Dallwitz, McJannet, and Consaul (1997) should also be cited (see References).

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