Psittacanthus robustus is a species of neotropical mistletoe in the family Loranthaceae, which is found in Brazil, Colombia, Guyana and Venezuela.
Initially, branches are erect, but adult branches are pendulous. Branch cross-sections are square. Leaves are petiolate and obtuse at both base and apex. Inflorescences are both terminal and axillary, consisting of umbels of yellow to orange triads (flowers in groups of three).
The fruit is light green colored when immature but when ripe the colour changes ...