Betartanias

Betartanias is a genus of flowering plants in the family Asteraceae. It comprises a small number of species of herbaceous perennials native to subtropical and coastal regions of the Southern Hemisphere. Members are typically found in open scrublands, dunes, and low-elevation woodlands, where they contribute to seasonal displays of yellow to orange flowers.

Betartanias is placed within the tribe Heliantheae of Asteraceae. Plants are generally 15–60 cm tall, with simple or lobed leaves. Inflorescences are capitula consisting of 6–15 ray florets surrounding a central disc of tubular florets. The fruit is an achene with a pappus that aids wind dispersal. Flowering occurs mainly in the Southern Hemisphere’s spring and summer.

The genus currently contains four described species: Betartanias aurantiaca, Betartanias lutea, Betartanias marina, and Betartanias intermedia. They have overlapping ranges along coastal belts and inland scrub, with some endemism on island or mainland subtropical coasts. Some populations are considered locally vulnerable due to habitat loss and invasive species.

Betartanias species attract bees and butterflies, contributing to pollination networks. They prefer well-drained soils, full sun, and moderate moisture. In horticulture they are used as drought-tolerant ornamentals in rock gardens and coastal landscapes.

The genus name Betartanias is derived from a combination of Latin and Greek roots chosen during formal description to reflect the plant’s distinctive traits within the family.