Geranium robertianum L.

Herb Robert

Sp. Pl. 681 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Malodorous, erect to decumbent annual or biennial to 40 cm high; lower stems usually reddened, with shiny, glandular and eglandular hairs, upper stems glabrescent; taproot slender. Leaves ovate to broad-ovate, 2–8 cm long, deeply palmatisect to ternately compound with 3–9 (bi)pinnatisect primary lobes; ultimate lobes obtuse to acute; upper surface with scattered hairs; stipules c. ovate, margin ciliate. Flowers paired; peduncles to 7 cm long; pedicels to 1 cm long, minutely glandular-pubescent with scattered coarse glandular hairs; sepals ovate to narrow-lancolate, 5–7 mm long, with long spreading and minutely glandular hairs, mucro c. 1 mm long; petals obovate to spathulate, 9–12 mm long, truncate to slightly retuse, deep pink; anthers orange to purple, pollen orange. Fruit 13–22(–30) mm long; mericarps glabrous to hirsute except for long hair-like strands near awn attachment, strongly wrinkled; seeds smooth. Flowers Sep.–Jan.

*GipP, *HSF, *OtR, *VVP. Also naturalised in SA, NSW. Native to Europe, Africa, Asia. A fast-growing, self-seeding ornamental, widely grown in rockeries etc. Noted as a garden-escape at Montrose in the Dandenong Ranges but likely to be more widely naturalised.

Source: Smith, L.P. (1999). Geranium. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2016-08-29
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Geraniales
family Geraniaceae
genus Geranium
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Geranium robertianum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Geranium robertianum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present naturalised
Gippsland Plain present naturalised
Highlands-Southern Fall present naturalised
Otway Ranges present introduced

State distribution

Distribution map
South Australia
New South Wales