Lewis Short
(adjective) : sessĭlis, e, sedeo.
* Of or be longing to sitting, fit for sitting upon (only in the poets and in post-Aug. prose): tergum (equi),Ov. M. 12, 401: obba,i. e. with a broad foot,Pers. 5, 148; so, pira minimo pe diculo,Plin. 15, 15, 16, § 56.—Hence
* Transf., of plants, low, dwarf: genus lactucae,growing low, spreading,Plin. 19, 8, 38, § 125; Mart. 3, 47, 8 (for which: sedens lactuca,id. 10, 48, 9): folium (brassicae),Plin. 19, 8, 41, § 140: malvae,Pall. Oct. 11, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary