There was something I found quite striking about the color combination of the purple morning glory (Ipomoea purpurea) and the red leaves and flowers of what I am guessing is a tall celosia (Celosia plumosa).
I wasn't the only one taken with this composition. It appears* that someone was on their way to the F train with an apple and a plastic cup of water (or orange juice. Or vodka.) when, transfixed by the contrast of such hot, strong colors, they paused, and took a moment to contemplate the endless number of hues and textures the botanical world has to offer. A moment later, they returned back to reality and, realizing they were late for work (or their AA meeting), they rushed down the steps, abandoning the breakfast.
This was a pretty overcast morning which really made the purple and red pop out when I was walking to the subway, however the photo doesn't quite do this justice.
Here's another shot (somewhat unfocused -- sorry, it was a really early morning and I was running late) of morning glory:
Ipomoea purpurea shares its genus with the sweet potato (I. batatas). The genus means "worm-like," which is a reference to the coiling habit of the vine. This tendency is also noted in the genus's family name Convolvulaceae, derivative of Latin convolvere or "to twine around."