Rhubarb?

After planting many rhubarb seeds, one sprouted after about 10 days and another after about twice that. Here's a photo of one. Its growing very slowly and it isn't obvious (yet) that it is rhubarb. Once it grows a bit it might be a lot more obvious what, exectly this plant is (rhubarb or not).

The outside rhubarb is doing very well. It seems to have branched several times with what look to be about 4 centeres. Over winter it will be necessary to seperate these out and re-plant them for next year.