The cultivar name of this hardy geranium is ‘Gerwat’, but it is sold under the trade designation Geranium Rozanne. Trade designations add yet another layer of complexity (and some might say confusion) to answering the question, “What is the name of that plant?” The Royal Horticultural Society has a tidy summary on trade designations and trade marks; it is worthwhile reading it to understand why a plant can have two or three different names on the same label (e.g., common name of Rozanne hardy geranium, cultivar name of Geranium ‘Gerwat’ and trade name of Geranium Rozanne).
For gardening information on this meritorious hardy geranium, visit the Kemper Center for Home Gardening’s page on Geranium ‘Gerwat’ Rozanne or see this page from Blooms of Bressingham in New Zealand. Interested in geraniums? Visit the web site of The Geraniaceae Group
Small tidbit from the resource link from two days ago regarding Lomo-style images: I forgot to mention I discovered it via Darren Barefoot’s weblog.
Botany resource link: Desmids in the Netherlands is a site dedicated to the unicellular green alga in the Desmidiaceae and Mesotaeniaceae. Includes a Desmid of the Month – I’m a fan of Euastrum humerosum, myself. Little green beauties.