About Stylidium affine Sond.
Stylidium affine Sond. is a perennial species in the genus Stylidium. This plant produces long, erect or recurved lanceolate leaves. Individual leaves measure 12–30 cm (4.7–11.8 in) in length and 2–4 mm in width. Leaves grow in groups of 2 to 4, emerging from a basal papery sheath, forming an overall tufted habit. Its inflorescences are paniculate, 20–30 cm (7.9–11.8 in) long, and covered in dense glandular structures. Each peduncle bears 1 to 3 flowers, which range in color from rose pink to mauve. The flowers have vertically paired corolla lobes, with both anterior and posterior lobes measuring 8–11 mm long. This species has four throat appendages; the upper two are white, wing-shaped, and approximately 4 mm long. The diploid chromosome number of Stylidium affine is 2n=14, and it flowers in October. In its native range, Stylidium affine grows in lateritic soils, most often near granite outcrops. It occurs in open woodland, typically associated with Eucalyptus wandoo across much of its range. It is native to southwestern Western Australia, where its distribution spans from east of Gingin, southeast to Kojonup, and west to Dunsborough. In the southern portion of its range, it can be found in open woodland associated with either Eucalyptus wandoo or Corymbia calophylla. Its range is separate from, and located west of, the ranges of related species such as Stylidium caricifolium.
