Crazy plant of the day is this: Pereskiopsis spathulata! Which, I’ll admit, looks like a fairly generic succulent, but the cool thing is this is actually a cactus. A cactus with leaves. Most cactus have of course lost their leaves to increase their ability to survive in extremely dry conditions and rely on their stem for photosynthesis, but the genus Pereskiopsis is a bit of living evolutionary history with photosynthetic leaves still intact.
Joseph Tychonievich
By Dr. Charlie Rohwer
Since my last guest professor submission (buying organic food for health) garnered so much discussion, I thought I’d try to write about a less controversial topic: evolution. There’s no scientific doubt that’s where plants (well, all species of everything, really) come from, but what got me thinking about it recently was my Kentucky coffeetree.
My wife and I bought our first house a couple years ago, and for the previous 25 years at least, the landscaping had been severely neglected. … Continue reading this article “Our visiting Garden Professor and his Kentucky coffeetree”