I think this is bamboo. I'm not a botanist or arborist or herbologist, or any other -ist that would know what type of plant this is, though. All I know is, it was up on the Highline Park and it provided a really nice textural background for some portraits I was shooting that day. Grab it in iPhone, iPad and Desktop sizes via the links below.
Usage rights: no commercial use, please. Link back with credit if you do use/remix this. Don't be a jerk.