Small Purple-pea

Swainsona recta is a slender, short-lived perennial herb in the pea family, reaching roughly 20 to 50 centimetres in height. It produces pinnate leaves and racemes of small, purple to violet pea-like flowers in spring, characteristic of the genus. As a legume, it likely contributes to nitrogen cycling in the soils it inhabits, and its flowers provide nectar and pollen resources for native insects.

The species is endemic to southeastern Australia, occurring in scattered, highly fragmented populations across New South Wales, Victoria, and the Australian Capital Territory. It grows in native temperate grasslands and grassy woodlands, habitats that have themselves become critically reduced across the species' range.

Its decline stems from ongoing habitat loss and degradation. Urban expansion around cities such as Canberra and regional centres has consumed grassland remnants, while conversion of land to cropping and grazing has further reduced available habitat. Livestock grazing and trampling degrade remaining populations, and altered fire regimes, including both fire suppression and inappropriate burning, disrupt the grassland ecosystems the species depends on.

Invasive weeds compete with it for space and resources, and agricultural runoff affects soil and vegetation quality in surrounding areas.

Conservation efforts include legal protection under Australian federal and state threatened species legislation, management of known populations within reserves and travelling stock reserves, weed control programs, and monitoring of remaining subpopulations. Some populations occur on protected or managed land, supporting targeted grassland management.

Despite these measures, the species remains in decline. Its restricted, fragmented distribution and continued habitat pressures mean its long-term persistence depends on sustained management of remaining grassland sites and control of ongoing threats.