Chamaecrista mimosoides

Tea Senna / Fishbone Senna


Origin of name

Family: CAESALPINIACEAE

  • Chamaecrista meaning “low crest
  • mimosoides meaning “resembling a mimosa

Occurrence

A local plant of coastal areas and floodplains, usually growing in seasonally waterlogged places in sandy soil.

Tolerates drought, full sun/light shade, poor soils and seasonal floods. Roots form nodules inhabited by nitrogen-fixing soil bacteria.

Appearance

Small (0.5-1m), short-lived perennial shrub with woody base, mimosa-like leaves, and numerous, wiry stems. Yellow flowers (peak Jan-Apr) lead to thin, flat seed pods.

A self-seeding, green manure plant providing light ground cover and stabilises loose, sandy soils. Sometimes weedy but can be controlled. Leaf infusion used as a tea in Japan. Larvae of Macleay’s Grass Yellow butterfly eat the leaves. Stock may eat young leaves – palatability is low.