Some of the branches will get swollen, and the "bulbs" will
grow when placed on wet soil. The "eye" forms the root, don't
do as I, but stick it in the soil! It actually formed a root under ground
in 1824. This Vitaceae
comes from Mexico, where it lives among the rocks. A bit of water and
some sun, and the small green flowers will appear. It can be reproduced
both by "air-bulbs" cutting and seeds. The caudex will grow to
20 centimetres in diameter, and several meters long, lying on the
ground. The vines will reach for up to 5 meters.
It might have been
described by Knuth as Cissus tiliacea in 1821, but the
well-known name tuberosa remains.
Also classicified as Ampelidaceae.