Diagnose : Description (based on the works of Kerguélen & Plonka op. cit., Portal op. cit and personal collections):
– Plant: densely caespitose erect plant, green to glaucescent, height: (10) 3050 (70) cm – Nonflowering
shoots intravaginal, stolons absent – Stem: usually smooth, glabrous to very pubescent or scabridule above (under
the panicle), angular – Sheath: open to the base, glabrous, scabridule to densely villous – Ø leaf blade: (0.3) 0.50
0.70 (1,0) mm wide, glaucous, scabrid at least above – Sclerenchyma arranged in (1) 2 (3) continuous layers of
cells, rarely interrupted near midrib – Rib: 1 (very rarely 3, if present not very marked) – Crosssectional leaf blade
section: elliptical to oboval – Veins: 7 (9) – Panicle: (1.5) 48 (10) cm, lax, the branches scabrid, moderately to long
detached from the leaves – Spikelet (4.5) 5.56.4 (7) mm long, with 37 florets – Upper glume (G2): (2.2) 2.53.8
(4.0) mm, lanceolate to ovatelanceolate, smooth or weakly scabrid above – Lemma (3.0) 3.64.1 (4.7) mm, ciliate,
glabrous to scabropubecent in the upper 1/3 or more – Awn less than the half length of the corresponding lemma
[(0,5) 11.5 (1,8) mm – Paleola: = ± lemma – Anther: 1.42.4 mm – Ploidy: 2n = (14) 28.
Références :
Boeuf et al. (2022)
Holotype : • Holotypus deposited at the National Museum of Natural History in Paris (MNHN) under n° P01190861,
Origin: comes from the personal herbarium of Robert Portal (see figure 9 in Appendix 2, board 13B).
[Label legend: Festuca ovina subsp. guestfalica, Fort Harrouard – Anet, commune de SorelMoussel (F28260), leg.
P. Boudier June 5, 1998, det. R. Portal, vid. 1998]
Références :
Boeuf et al. (2022)
