Manihot grahamii
For reasons unknown to me, my most popular photo on Flickr today was Manihot grahamii (Euphorbiaceae). This is an old photo, showing a group of seedlings that popped up in 2010 from a plant that had gone to seed in 2008, 2 years earlier. The seeds can clearly remain dormant for a long time before germinating because just yesterday I found another seedling coming up, although it has now been 6 years since this species went to seed in my garden.
