Botany is the science which has to do with plants and plant life, including viruses, algae, and fungi and the study of their growth, structure, reproduction, diseases, and chemical properties, as well as their evolutionary relationships in taxonomic groups.
Regular Blogs
Agricultural Biodiversity Weblog
Maintained by two botanists who seek to collect any and all items on the internet which relate to the idea of agricultural biodiversity.
http://agro.biodiver.se/
Provides botanical topics including algae, plant-insect interactions, naturalized plants, and seedless plants.
http://botany.thismia.com/
Details the activities of the Pacific Agricultural Genetic Resources Network, known as PAPGREN, in the Fiji Islands, as well as other botanical activities and news in other parts of the Pacific.
http://papgren.blogspot.com/
Plants Are the Strangest People
The blogger, Mr. Subjunctive, writes about the science of botany, specifically tailored for people who grow houseplants and have not much science background.
http://plantsarethestrangestpeople.blogspot.com/