eastern redbud

I have an eastern redbud planted 3.5 years ago. Tree seems to be doing great but I just noticed what looks like fungus in one of its crevices. Any idea what this is and, if so, what actions should I take to ensure the tree stays healthy?

Hi All. I planted a bare root eastern redbud about three years ago. It seems to have done pretty well - plenty of growth and flowers this year. However, I think I made the rookie mistake of planting too deeply. I notice that there is a big fissure in the bark near the base, and I am worried...