Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.


1. Plant a slender annual with cauline leaves less than 1.7 mm broad; corolla red-pink (at least in the Michigan collection).

L. spartea

1. Plant a sturdy perennial with cauline leaves all or mostly at least (1.5–) 1.7 mm broad; corolla yellow.

2. Leaves ovate, ca. 3 times as long as broad or shorter; corolla (including spur) (23–) 27–40 (–43) mm long.

L. dalmatica

2. Leaves linear, tapered to the base, ca. 10 times as long as broad or longer; corolla (18–) 23–28 (–35) mm long.

L. vulgaris

All species found in Linaria

Linaria dalmaticaDALMATIAN TOADFLAX 
Linaria sparteaBUTTER-AND-EGGS 
Linaria vulgarisBUTTER-AND-EGGS 


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 29, 2023.