This is a photo of Zamia pumila, not Hemigraphis angustifolia. The plant in the photo is in the conservatory at Matthaei Botanical Gardens, where I have seen and photographed it myself.
There are two plant tags at the base of the plant, one for Zamia pumila (Florida Arrowroot), and the other for Hemigraphis angustiflolia. It would be easy to make the mistake of connecting the latter plant tag with the photographed plant. However, online searches for additional information about both plants quickly reveals that Hemigraphis angustifolia is a very different plant from the one depicted in the above photo, while Zamia pumila does match the plant in question.
Here is a link to what I believe to be an authentic photo of Hemigraphis angustifolia. The photo is copyrighted, so I can't reproduce it here.
http://www.plantsystematics.or...
I have requested that this photo be moved to the page in the database for Zamia pumila