The Compendium of Kāśyapa 5.9.20

5.9.20

anekadoṣasaṃghāto gulmavadgulma ucyate
tridoṣajādṛte gulmāḥ siddhyanti na cirotthitāḥ

A collection of multiple humours, like a shrub, is called gulma. / Except for that born of all three humours, gulmas are curable if not of long standing.