References

For Veronica

Albach, D.C. 2019. Veronica. In Flora of North America Editorial Committee. 2019. Flora of North America north of Mexico. Volume 17, Magnoliophyta: Tetrachondraceae to Orobanchaceae. Oxford Univ. Press, New York, NY. 737 pp. Google Scholar

Atha, D., L. Lewis, S. Wolkenberg, D. Werier, and D.C. Albach. 2021. First report of Veronica sublobata (Plantaginaceae) for New York. Phytoneuron 2021-27: 1-5. Published 7 June 2021. ISSN 2153 733X Google Scholar

Bardy, K.E., D.C. Albach, G.M. Schneeweiss, M.A. Fischer, and P. Schönswetter. 2010. Disentangling phylogeography, polyploid evolution and taxonomy of a woodland herb (Veronica chamaedrys group, Plantaginaceae s.l.) in southeastern Europe. Molec. Phylogen. Evol. 57: 771-786. Google Scholar

Crow, G.E., and C.B. Hellquist. 2000a. Aquatic and wetland plants of northeastern North America: a revised and enlarged edition of Norman C. Fassett's A Manual of Aquatic Plants. Vol. 1. Pteridophytes, gymnosperms, and angiosperms: dicotyledons. Univ. of Wisconsin Press, Madison, WI, USA. Google Scholar

Pennell, F.W. 1935. The Scrophulariaceae of eastern temperate North America. Academy of Natural Sciences of Philadelphia Monograph No. 1. Google Scholar

Stace, C. 2021. New flora of the British Isles, fourth edition, October 2021 reprinting with corrections. C & M Floristics, Suffolk, U.K. 1266 pp. Google Scholar

Walters, S.M., and D.A. Webb. 1972. Veronica. In Tutin, T.G., V.H. Heywood, N.A. Burges, D.M. Moore, D.H. Valentine, S.M. Walters, and D.A. Webb. 1972. Flora Europaea. Volume 3. Cambridge, England. Google Scholar