#Acaena
- Acaena — A genus of perennial herbaceous or subshrubby plants in the Rosaceae family, primarily native to the Southern Hemisphere, remarkable for their ability to form dense, persistent, and highly resilient evergreen groundcovers. Morphologically, they are distinguished by fine, often pinnate foliage and globose inflorescences whose fruits develop spines or burrs adapted for zoochory (dispersal by attaching to animal fur).
- Acaena argentea — A species of creeping perennial plant within the Acaena genus, native to the temperate regions of South America (Chile and Argentina), remarkable for its exceptional ornamental value. It is individualized by its compound leaves, whose leaflets display metallic, silvery-blue reflections, covered in fine hairs that reflect sunlight and provide protection against dehydration in arid or alpine climates.
- Acaena glaucophylla — A species of creeping, evergreen perennial plant native to the mountainous and arid regions of South America (predominantly the Chilean and Argentine Patagonia). It is distinguished by its spectacular glaucous foliage, whose matte blue-green hue is the result of a protective waxy layer that reduces evapotranspiration and reflects intense solar radiation, a major ecological adaptation to alpine tundra or semi-desert conditions.
- Acaena lucida — A species of perennial herbaceous plant in the Acaena genus, native to the cold and insular regions of the Southern Hemisphere (such as the Falkland Islands, Tierra del Fuego, and Magellanic regions). Its defining characteristic is the intense green foliage with an extremely glossy, smooth surface devoid of dense hairs, which strongly reflects light and gives the plant a fresh, vibrant appearance, ideal for groundcover in moist or partially shaded areas.
- Acaena pinnatifida — A species of perennial herbaceous plant in the Acaena genus, native to the temperate and subalpine regions of South America. The taxon stands out due to the deeply divided structure of its compound leaves, whose leaflets are deeply incised or pinnatifid, resembling miniature ferns. This unique foliar architecture not only enhances its aesthetic value but also represents an efficient structural adaptation for dissipating strong winds in its native habitats.
- Acaena splendens — A species of suffruticose perennial plant in the Acaena genus, native to the high mountainous zones of Chile and Argentina. This plant stands out for its exceptional aesthetics, being entirely covered by a dense indumentum of long, silky, appressed hairs, which give it an intensely glittering (shining) silvery appearance. This structural ecotype acts as an efficient thermal shield against severe nocturnal frosts and extreme ultraviolet radiation at high altitudes.