If you're a blogger who's never submitted before, why not delurk and give us some fresh meat? The field is biology, medicine, science in general. Read the guidelines at the Tangled Bank site, you don't have to be a Ph.D. or a working scientist. In fact it would be enlightening to get some posts from people outside the profession on how science is perceived by the rest of us and how you think the mainstream media is doing in reporting science. Nunatak and I will be tag-teaming on the selection and writing.
And if your inspiration is down to seeds and stems, here's what Darwin wrote which inspired the carnival name:
It is interesting to contemplate a tangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, and dependent upon each other in so complex a manner, have all been produced by laws acting around us. These laws, taken in the largest sense, being Growth with Reproduction; Inheritance which is almost implied by reproduction; Variability from the indirect and direct action of the conditions of life and from use and disuse: a Ratio of Increase so high as to lead to a Struggle for Life, and as a consequence to Natural Selection, entailing Divergence of Character and the Extinction of less-improved forms.