Navarretia squarrosa (Eschsch.) Hook. & Arn.

Californian Stinkweed

Bot. Beechey Voy. 368 (1839) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Erect, glandular-hairy, odorous annual to c. 60 cm tall. Leaves sessile, ovate to oblong-lanceolate, pinnatisect to bipinnatisect, 15–35 mm long, 10–25 mm wide, lobes narrow, rigid and spine-tipped. Inflorescences dense terminal heads 2–3 cm across, surrounded by spine-tipped leafy bracts. Sepals 5, narrow-lanceolate, 8–12 mm long, teeth about as long as tube, spinose; corolla 5-lobed, 9–12 mm long, broadly funnel-shaped, pale lilac to blue, lobes short, spreading; stamens inserted at c. middle of corolla-tube, anthers included; stigma 3-lobed. Capsule ovoid, 3–4 mm long, 3-celled, remaining enclosed by persistent calyx; seeds numerous. Flowers summer.

*CVU, *GipP, *Gold, *HNF, *NIS, *OtR, *SnM, *VAlp, *VRiv, *VVP. Also naturalised WA, SA, NSW, ACT, Tas. Native to North America. An occasional weed of pasture and disturbed sites, mostly in the north-east (c. Alexandra to Corryong), but also in Kyneton, Trentham, Beaufort, Ararat and Portland areas.

Source: Jeanes, J.A. (1999). Polemoniaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-03-13
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Ericales
family Polemoniaceae
genus Navarretia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Navarretia squarrosa in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Navarretia squarrosa in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Volcanic Plain present naturalised
Victorian Riverina present naturalised
Gippsland Plain present naturalised
Goldfields present naturalised
Central Victorian Uplands present naturalised
Northern Inland Slopes present naturalised
Highlands-Northern Fall present naturalised
Otway Ranges present introduced
Victorian Alps present naturalised
Snowy Mountains present naturalised

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory