The few yellow green to creamy white flowers of Tylecodon similis appear in late summer when the deciduous leaves have disappeared. The flowers are erect, the cylindrical tubes of about 8 mm long bearing maroon stripes and smaller markings on their perianth segments.

The tube ends in five, small frilly-margined lobes. The short, thick, pale-yellow anthers are exserted among the frills. There are fine hairs in the corolla throat (Grenier, 2019; Williamson, 2010; iNaturalist; https://worldofsucculents.com).