Lepidium peregrinum Thell. (1913 "1912":153)

Wandering pepper-cress, Pilgrim pepper-cress



Taxonomy & Nomenclature

Synonym/s: Lepidium peregrinum var. glabripes Thell. ex Hayw. & Druce in Advent. Fl. Tweedside: 272 (1919)


Conservation Status

Last record: 1884 (Australia) (Leigh et al., 1984); 1913 (Scotland) (Scarlett, 1999:337)

Rediscovered in: 14 March 1990 (specimen) (Scarlett, 1999:343; Silcock et al., 2019:SM:12 [as 1990]); 1990 or later (recognition) (Scarlett, 1999:343)


Although described from wool-alien material that was found in Scotland in 1910 (and appears to have survived there at least until 1913; see Scarlett, 1999), there is an Australian record of the species from either 1883 (Scarlett, 1999) or 1884 (Leigh et al., 1984) that appears to have only been retrospectively recognised as L. peregrinum.

It was still listed as Extinct by (Keith et al., 1997:64) despite being rediscovered seven years earlier, as the rediscovery appears to have only been published in 1999 (Scarlett, 1999).



New South Wales & Queensland, Australia


Biology & Ecology










Department of the Environment. (2024). Lepidium peregrinum in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: Accessed Mon, 29 Apr 2024 21:46:42 +1000.

Heenan, P. B. and de Lange, P. J. (2011). Lepidium peregrinum (Brassicaceae)—a new addition to the New Zealand flora. New Zealand Journal of Botany 49: 489-496.

Hewson, H. J. (1982). The genus Lepidium L. (Brassicaceae) in Australia. Brunonia 4: 217-308.

Hewson, H. J. (2017) Lepidium peregrinum. In: Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. [Date Accessed: 13 January 2020]

Hnatiuk, R. J. (1990). Census of Australian vascular plants. Australian Flora and Fauna Series 11: 1-650.

Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. [Supplementary Dataset 1]

Keith, David A., Chalson, Jane M. and Auld, Tony D. (1997). Assessing the status of threatened plants: A new methodology and an application to the vascular flora of New South Wales. Project No. 450, Endangered Species Program. Canberra: Biodiversity Group, Environment Australia.

Queensland Herbarium. (2007). Lepidium peregrinum, nomination for re-classifying rare wildlife under the Nature Conservation Act 1992. Queensland Government, Environmental Protection Agency, Queensland National Parks and Wildlife Service. (unpublished)

Scarlett, N. H. (undated) Draft Recovery Plan for the Endangered Pilgrim Pepper-cress (Lepidium peregrinum Thell) (2009-2014) in New South Wales and Queensland. Latrobe University Botany Department.

Scarlett, N. H. (1999). The identity of Lepidium peregrinum (Brassicaceae), an endangered Australian plant species. Teleopea 8(3): 337-350. [automatic download]

Silcock, Jen L., Field, Ashley R., Walsh, Neville G. and Fensham, Roderick J. (2019). To name those lost: assessing extinction likelihood in the Australian vascular flora. Oryx 54(2): 167-177. [Supplementary Material]

Walter, Kerry S. and Gillett, Harriet J. (eds.). (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. Gland, Switzerland & Cambridge, UK: IUCN – The World Conservation Union. lxiv + 862 pp.


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