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. 2020 Oct 7;162:45–69. doi: 10.3897/phytokeys.162.55550
1 Tillers intravaginal (cataphylls absent, elongated prophylls present at juncture of lateral shoots), lateral tending rhizomes absent; densely tufted and usually forming large tussocks with basal foliage reaching (10−)20–80+ cm tall and often > ½ the length of the culms; sheaths of tillers and basal culm (3–)12–24 cm long; leaf blades of tillers and basal culm (4−)12−66.5+ cm long; lowermost lemmas (4.5−)5−7(−9) mm long; fertile anthers (1.8−)2−4 mm long (as short as 1.6 mm in var. macra, according to Alexeev 1986) (F. caprina s.l.) 2
Tillers extravaginal (rarely some intravaginal shoots also present), lateral-tending or ascending cataphyllous shoots or lateral-tending rhizomes present; plants forming lax short tufts with basal foliage reaching (2−)4−20(−27) cm tall and < ½ the length of the culms; sheaths of tillers and basal culm (0.5–)2–7(–10) cm long; leaf blades of tillers and basal culm (2–)5–15(–26) cm long; lowermost lemmas 4−5.8 mm long; fertile anthers 0.8−1.8 mm long 4
2 Sheaths of old leaves falling apart (shredded) into parallel thin threads; basal foliage ca. 14–30 cm tall, often < ½ the length of the culms; panicle branches and pedicels short-hispid or long-scabrous with hair-like prickles; lemmas, paleas and rachillas short-hispid or long-scabrous with hair-like prickles; lemma apices usually notably bifid, with awn emerging from between the lobes F. caprina var. irrasa Stapf
Sheaths of old leaves entire, not or rarely only very slightly disintegrating into fibres; basal foliage (10−)30–80+ cm tall, generally (> ½) > ¾ to surpassing the length of the culms; panicle branches and pedicels short scabrous; lemmas, paleas and rachillas glabrous, scabrous, but prickles hooked, short hooked, slender or stout, not hair-like, rarely smooth; lemma apices not usually notably bifid, commonly merging into the awn 3
3 Leaf blade abaxial surface antrorsely scabrous throughout F. caprina var. macra Stapf
Leaf blade abaxial surface smooth or rarely antrorsely scaberulous towards the apex F. caprina var. caprina Nees
4 Sheaths of old leaves falling apart (shredded) into parallel thin threads; leaf blade midrib (middle vein) usually sharp, keel-like, sometimes blunt and rounded; panicles drooping; panicle branches usually pendant, lightly to densely scabrous; lowermost lemma (not including awn) 4.5−5.8 mm long; awn usually present, very rarely muticous, awn 0.5–3 mm long; ovary apex sparsely to densely hairy; fertile anthers 0.8−1.6(−1.8) mm long; basal foliage reaching (2−)4−20(−27) cm tall F. drakensbergensis Sylvester, Soreng & M.D.P.V. Sylvester
Sheaths of old leaves entire, not disintegrating into fibres, lustrous; leaf blade midrib (middle vein) blunt, rounded; panicles erect; panicle branches smooth; lowermost lemma (not including awn) 4−4.2 mm long; awn absent; ovary apex glabrous; fertile anthers 1.5−1.8 mm long; basal foliage reaching to 12 cm tall F. exaristata E.B. Alexeev