Weeds Identification (PDF, 13MB, new window) - Manningham City ...

Herbs and Ground Covers
26
Oxalis species
(three species below)
Status: Very serious environmental weeds. Oxalis
purpurea is also a very serious pasture weed.
Dispersal: Bulbs and bulbils dispersed by water
and birds, transported in contaminated soil.
Similar local native plants: Oxalis spp.
Wood-sorrels.
Note: All emerge from underground in autumn and
dieback in late spring.
Control:
Soursob
Oxalis pes–caprae
Features: Upright perennial to 30cm with clover–like
leaves, often with brownish spots on top. Yellow
trumpet-like flowers held above foliage, in winter to
spring. Tiny pale bulbils can often be found at the
base of the plants on stems held above the ground.
Very common on roadsides and disturbed places.
Pale Wood-sorrel
Oxalis incarnata
Features: Similar to Soursob with paler foliage
and pale pink flowers later in spring. More common
in damp areas.
Large-flower Wood-sorrel
Oxalis purpurea
Features: Ground hugging leaves and large pink
to purple flowers in late winter to spring. Leaves
and flowers are much larger than the previous two
species.