[5] In Lepidobotryaceae, this joint bears a single, elongate stipel and a pair of small stipules where the petiole attaches to the stem.

The sepals and petals are similar in size and appearance, free from each other, or very shortly united at the base.

The filaments are fused at the base, shortly in Lepidobotrys, but forming an extension of the tubular nectary in Ruptiliocarpon.

In 2000, a DNA analysis of the eudicots based on the rbcL gene showed that the families Lepidobotryaceae, Parnassiaceae, and Celastraceae form a strongly supported clade.

[9][10] The families into which Lepidobotrys had usually been placed, Linaceae and Oxalidaceae, are now placed in the orders Malpighiales and Oxalidales, respectively, which are closely related to Celastrales.

The orders Celastrales, Oxalidales, and Malpighiales, along with the unplaced family Huaceae form a group known as the COM clade of the rosids.