Symplocaceae is a family of flowering plants in the order Ericales, including two genera, Symplocos and Cordyloblaste, totalling about 260 known species.

[2] Plants in the family Symplocaceae are generally trees or shrubs,[3] and are found in humid, tropical, montane forests within their range.

[3] It possesses a lignified endocarp or "stone" which often contains key information when distinguishing between closely related species of Symplocaceae.

Symplocaceae endocarps are open at the apex with multiple chambers ranging in number from one to five but generally, three-chambered.

The fossil record does much to confirm the biogeographic connection between North America and East Asia which is already well established in the paleobotanical field.