Genus: Gratiola
Nomenclature
Gratiola Linnaeus, Sp. Pl. 1: 17. 1753.List of Gratiola Species
References to Gratiola
- Baskin, J. M. et.al. 1989. Role of temperature, light, and date seeds were exhumed from soil on germination of four wetland perennials. Aquatic Botany 35: 387-394.
- Blake, S. F. 1918. Notes on the Calyton Herbarium. 8. Azalea lutea L. Rhodora 20: 21-8, 48-54, 65-73. (Other Families and Genera discussed)
- Estes, D.; Small, R. L. 2007. Two new species of Gratiola (Plantaginaceae) from eastern North America and an updated circumscription for Gratiola neglecta. J. Bot. Res. Inst. Texas 1: 149-170. (G. graniticola sp. nov. and G. quatermaniae sp. nov.)
- Kapoor, B. M. et.al. 1987. Annotated list of the chromosome numbers of the vascular flora of northeastern America V. Naturaliste Canad. 114: 105-116.
- Rahmanzadeh, R. et.al. 2005. The Linderniaceae and Gratiolaceae are further lineages distinct from the Scrophulariaceae (Lamiales). Plant Biology 7: 67-78.
- Spooner, D. M. 1984. Infraspecific variation in Gratiola viscidula Pennel (Scrophulariacae). Rhodora 86: 79-87.