I never could really understand why this one came with this particular name, as there are no black leaves at all. I rather think that it is just another in a long line of parasitica/verticulata/acuta clones. It does not really matter as it is a fine looking plant.
![](https://i2.wp.com/vermonthoyas.com/vhwp/wp-content/uploads/2020/06/Hoya-sp.-Black-Leaves-061620a-scaled.jpg?fit=625%2C833&ssl=1)