Dimorphocalyx glabellus is a species of plant in the family Euphorbiaceae. It is a small evergreen tree endemic to Sri Lanka.

It is known as "weli wenna" in Sinhala and "tentukki" in Tamil.

Whole plant is used as an important medicinal plant in Ayurveda.

• http://indiabiodiversity.org/species/show/263237
• http://www.theplantlist.org/tpl/record/kew-61904
• http://www.discoverlife.org/mp/20q?search=Dimorphocalyx+glabellus