As for my little corner of science it should be fairly simple right? I identify plants. Plants that for the most part have been documented for two to ten hundred years. Should be if not easy than at least straightforward right? Well the third or fourth step in any identification book is to count the number of petals. Five petals means one thing and six or four or three means something else. Then nature throws me a flowering plant with five and six or five and four petals on the same stem...Seriously count em up.
Science, the nitty-gritty hands on version, always finds a way to throw you for a loop.