Othonna is a genus of evergreen or deciduous geophytes, dwarf succulents or shrubs belonging to the sunflower family Asteraceae. The genus includes more than 100 species concentrated in the Western Cape of South Africa and southern Namibia. A few species occur in summer rainfall parts of southern Africa. The genus is closely allied to Senecio and can be distinguished principally by details of the involucre. Taxonomically they are in need of a modern revision.

Othonna ramulosa is a South African endemic species. Othonna ramulosa is an erect, hairless shrub reaching heights to 1,5 m. The blue-grey plant in picture has an inverted cone-shape, resulting from few rigid, straight branches radiating around a vertical axis from the basal stem. The specific name is derived from the Latin word ramus meaning branch, referring to the plant’s numerous small branchlets bearing leaves and flowerheads. The species distribution is in the Western Cape from Ceres to Worcester and the west of the Little Karoo. The habitat is rocky, karoid slopes covered in scrub, renosterveld or fynbos in sandy or clayey soils. The species is not considered to be threatened in its habitat early in the twenty first century.