crab cactus
Thanksgiving cactus
Zygocactus truncatus
Schlumbergera truncatus

Growers can choose from a Thanksgiving cactus, a Christmas cactus or an Easter cactus.

Stems of the Christmas cactus plants usually are smooth, somewhat scalloped, while those of the Thanksgiving cactus have teeth along the jointed stems.

For the cultivation of epiphytic cacti, see Cultivation of Schlumbergera (Christmas or Thanksgiving cacti), and Cultivation of epiphyllum hybrids.

I have what was described as a Thanksgiving cactus that resembles the drawing exactly.

It could be that the plant is the so-called Thanksgiving cactus.

These same conditions are needed by the earlier blooming Thanksgiving cactus (Schlumbergera truncata) and there is a strong family resemblance between the cousins.

But you can tell them apart if you keep in mind that the Christmas cactus has somewhat rounded leaf segments, while the Thanksgiving cactus, sometimes called the claw or crab cactus, has jagged, saw-toothed leaves not unlike crab claws.

Now they are back on the jade and on a neighboring Thanksgiving cactus.

A few, including ardisia, bay laurel, camellia, citrus, clivia, ivies, Norfolk Island pine, scented geraniums, oleander and Christmas and Thanksgiving cactus, can go outside once night temperatures are consistently above 40 degrees.