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.


Species of several genera in this family of succulent plants are grown especially in rock gardens, and some, such as Sempervivum tectorum L., hen-and-chickens, have been collected rarely where garden refuse is dumped or other places where “transplanted,” (Barry and Benzie Cos.) but it is hardly established. It has leaves flat and numerous in a basal rosette. See Mort et al. (2001) for generic relationships in the family.

1. Leaves entire, flat or terete to elliptic in cross-section; flowers white or yellow.


1. Leaves irregularly toothed, flat; flowers white to (usually) pink or purple.

2. Leaves mostly alternate, with smooth glabrous margins.


2. Leaves all opposite, with prominent papillose-ciliate margins.



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