Yondu's plant powers are practically gone. He doesn't try to fall back on them either. He whistles, calling up his arrow so it hovers over his shoulder like some kind of waiting drone, keenly watching for an attack.

What he sees first is people running around the corner from something. What looks like a shrew crossed with a running crocodile. Again, that might be what the thing is meant to look like but honestly he doubts it.