Oxalis truncatula is a dwarf, winter-growing geophyte endemic to the southwestern regions of the Western Cape.

Names
Common English Name: Truncate Sorrel
Afrikaans Name: Suring (commonly referred to as Geelsuring or Surinkie)
Botanical Features
Growth Form: Very compact, low-growing herb typically reaching only 3–8 cm in height, sprouting annually from a deep-seated underground bulb.
Foliage: Distinctive trifoliate leaves with deeply heart-shaped or "truncated" (cut-off/notched) leaflets. The leaves form a neat basal rosette, with upper surfaces ranging from mid-green to grayish-green, often with purplish margins or undersides.
Flowers: Bright, saturated yellow, funnel-shaped blossoms held on short individual stalks just above the foliage. Flowers open fully in direct, warm sunshine and remain closed during cold or cloudy weather.
Flowering Period: Mid-winter through to early spring (typically June to August).
Habitat & Growth Cycle
Habitat: Found on stony clay slopes, granite outcrops, and sandy gravel flats within coastal and lowland fynbos communities. Life Cycle: A classic winter-rainfall geophyte that shoots and flowers during the wet winter months, then dies back completely to its subterranean bulb to survive the hot, dry summer. Click to find out more on iNaturalist

Click to find out more on iNaturalist