Ptilothrix (Cyperaceae) sedges growing in volcanic crater

A.S. Kers, on October 15, 2007, said:

Dear Greg,

Please, be careful with locating endangered or rare species. There are people enough who want to catch beautiful or rare plants for commercial or other reasons. You can also show the photo's without any location.

Greetings from the Netherlands. Bas Kers

Greg Steenbeeke, on October 16, 2007, said:

Thanks for the comment Bas.

I took this into account when marking the photograph site, and in most cases the site is well known anyway.

Which species made you make this comment? This Ptilothrix (which it isn't, anyway) isn't threatened, surely. I saw it quite often in Hawaii.

Cheers, Greg