Straggly to dense shrub or small spreading tree 2 - 4 m high.
Branches often down-arched, branchlets ribbed.
Phyllodes asymmetric, usually lanceolate, margins usually undulate.
Sharp thorns arise from the phyllode bases.
Yellow spherical flower-heads, one per axil.
Flowers Aug - Nov
Brief survey of flowering plants during an APS Keilor Plains field trip. Caladenia carnea s.s., Craspedia variabilis, Glossodia major, Philotheca verrucosa and Pimelea humilis added to collection list. Also Orobanche minor.
Brief survey as part of an APS Keilor Plains field trip. Three new species for the Kimbolton collection - Senecio quadridentatus, Thysanotus patersonii, Pimelea linifolia. Geranium had white flowers in pairs & long patent hairs on stem.