hypŏgēson: i, n., = ὑπόγεισον,I a kind of houseleek that grows in the gutters of roofs, Plin. 25, 13, 102, § 160.
hўpŏgēsŏn, ī, n, (ὑπόγεισον), joubarbe [plante] : Plin. 25, 160.