''Baccharis macraei'' is a species of shrub native to

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the eas ...

and

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

Description

The plants are 50–150 cm tall shrubs. The branching angle is relatively wide. In the first few years the stems are covered in dense trichomes, which lead to the impression of a round stem. However the stems are edged underneath. With age the stems become greyish brown, shiny and rugose. The firm, waxy leaves, which only have a lifespan of one year, are grouped at the apex of branches. They are obovate and have a toothed margin. The apical leaves envelop the singular, terminal, sessile inflorescences. The capitulum is 5–7 mm wide in male plants and 4–7.5 mm wide in female plants.

Natural hybridisation

This species is part of a homoploid hybrid swarm involving ''

Baccharis linearis ''Baccharis linearis'', the romerillo or Chilean little rosemary, is a common shrub in Central Chile. It is frequently found in old field after agriculture. Cecidia or galls caused by the fruit fly ''Rachiptera limbata'' grow as white, spongy an ...

''. Together both parent species form the natural hybrid ''

Baccharis intermedia ''Baccharis intermedia'' is a species of shrub native to Chile. The species was first formally described by the botanist Augustin Pyramus de Candolle in 1836. Distribution This species is common on coastal hills of central Chile. Natural hybri ...

''.

References

macraei Flora of Chile Plants described in 1840 Taxa named by William Jackson Hooker Flora of Peru Dioecious plants {{Astereae-stub