Bloodbush (Senna artemisioides subsp. oligophylla) in the Western Australian rangelands

Page last updated: Tuesday, 21 July 2020 - 3:48pm

Bloodbush (Senna artemisioides subsp. oligophylla) is one of many plant species found in the Western Australian rangelands. This page provides a summary of the plant's value for pastoralism. Pastoral lessees and station managers can use this information to assess pasture condition and trend.

FloraBase features photographs of this plant.

Indicator value

Bloodbush is generally considered an intermediate value indicator because it initially increases under heavy grazing, then decreases under continued grazing. It is a decreaser on shale and limestone plains and in the soft spinifex pastures of the Pilbara. It is an increaser on floodplains.

Forage value

Bloodbush is eaten by livestock after more-palatable plants have been depleted. When the onset of dry conditions occurs, this plant sheds its leaves and is not reliable as a drought reserve.


Red sandy or gravelly soils.

General description

Bloodbush can grow to about 1.5m tall. The leaflets are paired, broadly rounded and flat; about 3.5cm long and 1.5cm wide and often covered in a white waxy substance. Three pairs of leaflets are grouped on a stem about 10cm long. The flowers are 2cm wide and bright yellow, and found in bunches of 6 on a stalk. The black seeds of 7mm long by 4mm wide are in a papery brown pod that is 7cm long and 2cm wide.

Contact information

Kath Ryan
+61 (0)8 9166 4015
Matthew Fletcher
+61 (0)8 9166 4019

Bloodbush (Senna artemisioides subsp. oligophylla) in the Western Australian rangelands