Erratum to: Plant Syst Evol DOI 10.1007/s00606-014-1034-8

In the original publication of the article, GenBank accession numbers for 21 new sequences obtained for this work, were not listed in Appendix 1. With this erratum, the authors have provided taxa, voucher specimens from which DNA was extracted for sequencing, and its corresponding GenBank accession numbers:

Anthaenantia rufa (Elliott) Schult., Henderson 96820:

KJ719510

Anthaenantia texana Kral, Kral 93287:

KJ719511

Anthaenantia villosa (Michx.) P. Beauv., Kral 93319:

KJ719512

Hymenachne amplexicaulis (Rudge) Nees, Morrone 5190:

KJ719513

Hymenachne pseudointerrupta Müll. Hal., Beusehom 4230:

KJ719514

Otachyrium aquaticum Send. & Soderstr., Mori 12348:

KJ719515

Otachyrium grandiflorum Send. & Soderstr., Fonseca & Alvarenga 2206:

KJ719516

Otachyrium piligerum Send. & Soderstr., Rodriguez 157:

KJ719517

Otachyrium pterygodium (Trin.) Pilg., Andersson 8880:

KJ719518

Otachyrium seminudum Hack. ex Send. & Soderstr., Walter 904:

KJ719519

Otachyrium succisum (Swallen) Send. & Soderstr., Jansen-Jacobs 2723:

KJ719520

Panicum auritum J. Presl ex Nees, Olsen 144:

KJ719521

Panicum harleyi D. Salariato, Morrone & Zuloaga, Harley 5480:

KJ719522

Panicum hemitomon Schult., Jones 23315:

KJ719523

Panicum leptachne Döll, Longhi-Wagner 9511:

KJ719524

Panicum polygonatum Schrad., Morrone 4269:

KJ719525

Panicum stagnatile Hitchc. & Chase, Harmel 8404:

KJ719526

Panicum stevensianum Hitchc. & Chase, Ekman 1088:

KJ719527

Steinchisma cuprea (Hitchc. & Chase) W.V. Br., Beetle 7708:

KJ719528

Steinchisma exiguiflora (Griseb.) W.V. Br., Zuloaga 9580:

KJ719529

Steinchisma stenophylla (Hack.) Zuloaga & Morrone, Veredao da Silva 3459:

KJ719530