I am working a basic mathematical/computer simulation of an ecosystem, and I need to know the birth rate of each organism in my simulation. However, I could not find any data for how often a small, asexually-reproducing plant, like a fern or dandelion, reproduces. Does anybody know either a) the time to reach sexual maturity and the expected offspring of one dandelion or fern OR b) when starting with one plant, the expected living dandelion or fern plants after a year?
In other words, if I plant one dandelion or fern in a closed system (providing it with requisite water, food, sunlight, etc), how many can I expect to find at the end of the year?
These values don't have to be exact, I can adjust them later, but I need something to use as a baseline.