Answer: Your problem underscores the bigger problem that surrounds the use of common names. What is silene to one is lychnis to another. You'd have to know that the botanical names (genus) of Lychnis and Viscaria are synonymous and that Silene is a different genus altogether....but they share common names! Both Lychnis and Silene are called catchfly or campion. AND both genuses have both annual and perennial plants. So I can't help you find a source because I don't know which plant you are describing.How about describing the plant a bit for me and maybe that will help?
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