Dowload the complete checklist in Adobe pdf format - Arthur Haines

Linaria pinifolia (Poir.) Thellung Antirrhinum pinifolium Poir.; Antirrhinum
reticulatum Sm.; Linaria reticulata (Sm.) Desf.
pine-needle toadflax
Linaria repens (L.) P. Mill. Antirrhinum repens L.; Linaria striata DC. striped toadflax
Linaria spartea (L.) Willd. Antirrhinum sparteum L. ballast toadflax
Linaria vulgaris P. Mill. Linaria linaria (L.) Karst. butter-and-eggs toadflax
Littorella americana Fern. Littorella uniflora (L.) Aschers. var. americana American shoreweed
(Fern.) Gleason; Plantago americana (Fern.) K.
Rahn
Misopates orontium (L.) Raf. Antirrhinum orontium L. lesser-snapdragon
Nuttallanthus canadensis (L.) D.A. Antirrhinum canadense L.; Linaria canadensis oldfield-toadflax
Sutton
(L.) Chaz.
Penstemon barbatus (Cav.) Roth ssp.
beard-lip beardtongue
barbatus
Penstemon calycosus Small Penstemon laevigatus ssp. calycosus (Small) long-sepaled beardtongue
Bennett
Penstemon digitalis Nutt. ex Sims Penstemon laevigatus ssp. digitalis (Nutt. ex Simfoxglove beardtongue
Penstemon grandiflorus Nutt. Penstemon bradurii Pursh large beardtongue
Penstemon hirsutus (L.) Willd.
northeastern beardtongue
Penstemon laevigatus Ait. Penstemon penstemon (L.) Britt. eastern smooth beardtongue
Penstemon pallidus Small Penstemon arkansanus Pennell var. pubescens eastern white beardtongue
Pennell
Penstemon tubiflorus Nutt. Penstemon tubiflorus var. achoreus Fern. tube beardtongue
Plantago arenaria Waldst. & Kit. Plantago indica L., an illegitimate name; sand plantain
Plantago psyllium L., an ambiguous name;
Plantago ramosa Aschers.
Plantago aristata Michx. Plantago aristata var. nuttallii (Rapin) Morris;
Plantago gnaphalioides Pursh var. aristata
(Michx.) Hook.; Plantago nuttallii Rapin;
Plantago patagonica var. aristata (Michx.)
Gray
Plantago coronopus L. Asterogeum laciniatum S.F. Gray; Coronopus
vulgaris Fourr.
Plantago intermedia DC. Plantago halophila Bickn.; Plantago major
ssp. intermedia (DC.) Arcang.; Plantago major
var. intermedia (DC.) Pilger; Plantago major
ssp. pleiosperma Pilger; Plantago major var.
scopulorum Fries & Broberg
Plantago lanceolata L. Arnoglossum lanceolatum S.F. Gray; Plantago
altissima , of authors not L.; Plantago
lanceolata var. sphaerostachya Mert. & Koch
bracted plantain
buck's-horn plantain
many-seeded plantain
English plantain
Plantago major L. Plantago major var. pilgeri Domin common plantain