Styphelia longifolia, commonly known as Five-corners, is a species of flowering plant in the family Ericaceae. It is a small, evergreen shrub native to southeastern Australia, where it plays a role in its local ecosystems. This plant is characterized by its distinctive physical attributes, contributing to its identification and ecological niche. The growth habit of Styphelia longifolia is typically that of a low-growing, spreading shrub, often reaching a height of around 0.5 to 1 meter, with a similar or slightly greater spread. Its leaves are linear to narrowly lanceolate, measuring approximately 2 to 5 centimeters in length and about 2 to 4 millimeters in width. They are arranged alternately along the stems and are often slightly recurved, with a smooth margin and a pointed apex. The foliage is generally a deep green, providing a dense cover. The flowers of Styphelia longifolia are small and tubular, typically measuring about 5 to 8 millimeters long. They are usually borne singly or in small clusters in the leaf axils, particularly towards the ends of branches. The corolla is often white or pale pink, with five distinct lobes that spread outwards, giving rise to the common name "Five-corners" due to the appearance of the flower's apex. Flowering typically occurs from late winter through spring. Following pollination, the plant produces a small, fleshy fruit, also referred to as a drupe, which is usually about 5 to 7 millimeters in diameter. The fruit is often a pale pink or reddish color when mature and contains a single seed. The bark is generally smooth and greyish on mature stems. Styphelia longifolia is found in its native range across parts of New South Wales, Victoria, and Tasmania in Australia. It thrives in a variety of habitats, commonly occurring in heathlands, woodlands, and open forests, often on sandy or well-drained soils. It prefers areas with good sunlight exposure but can tolerate some shade. In cultivation, it is best grown in well-drained soil, ideally in a sunny to partly shaded position. It is relatively hardy once established and can tolerate a range of conditions, though it performs best in climates with moderate rainfall and without extreme frost. While not widely cultivated for ornamental purposes, Styphelia longifolia contributes to the biodiversity of its native habitats. Its flowers provide a nectar source for native insects, and its fruits are consumed by small birds and mammals. There is no significant documented agricultural, medicinal, or culinary use for this species. Its primary importance lies in its ecological role within Australian native flora. An interesting characteristic of Styphelia longifolia is its adaptation to nutrient-poor soils, a common trait among many species in the Ericaceae family, which often form symbiotic relationships with mycorrhizal fungi to enhance nutrient uptake. The plant's ability to thrive in these challenging conditions highlights its resilience and specialized adaptations to its native environment.