Figured I'd bump this since I've been doing some research for planning a
Brocchinia reducta and
hechtioides biotope, so I've been on the search for hardier plants found on the tepuis and surrounding savanna (especially the terrestrial/lithophytic ones).
The most common tepui plants in US circulation are orchids, some of the more common ones in culture include
Epidendrum ciliare and
secundum,
Eriopsis biloba,
Cattleya lawrenceana, and
Catasetum planiceps. Redfern's trek itinerary for Auyan Tepui and Angel Falls has a nice non-exhaustive list as well
[LINK].
Epidendrum secundum is a breeze to grow although it isn't the showiest plant and many of the reed stem
Epidendrum get rather tall for terrariums.
Besides the carnivorous
Brocchinia reducta and
hechtioides,
B. tatei is becoming more common in the US. The giant
B. micrantha and the myrmecophyte
B. acuminata are much more difficult to find. Other bromeliads include the carnivore
Catopsis berteroniana,
Racinaea sp. and
Tillandsia turneri (which doesn't seem to be in cultivation).
T. funckiana is also from Venezuela and very common, but I don't know if it grows on/near the tepuis.
Eriocaulon sp. can also make interesting accent plants, as can
Xyris sp., although finding species explicitly from South America might be challenging. I have never seen anyone in the US with
Stegolepis besides the odd botanical garden, which is pretty disappointing. Haven't seen too many ferns mentioned around the internet but there are also some
Elaphoglossum sp. from the area. Araflora's website is worth a look-around for plants although it seems like many of their tepui/savanna plants are unidentified and they don't have US dealers.