Crassula helmsii

Taxonavigation

Taxonavigation: Saxifragales
Classification System: APG IV Superregnum: Eukaryota Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Ordo: Saxifragales

Crassula helmsii (Kirk) Cockayne, Trans. & Proc. New Zealand Inst. 39: 349 1907.

Basionym
Tillaea helmsii Kirk, Stud. Fl. New Zealand: 142, 1899
Heterotypic
Tillaea verticillaris Hook. in Hooker's Icon. Pl. 3: t. 295 (1840), nom. illeg., non Tillaea verticillaris DC., 1828
Bulliarda recurva Hook. fil., London J. Bot. 6: 472 bis, 1847
Crassula recurva (Hook. fil.) Ostenf., 1918, nom. illeg., non Crassula recurva N.E.Br., 1890
Tillaea recurva (Hook. fil.) Hook. fil., Fl. Tasman. 1: 146, 1856

New Zealand material (C. helmsii s.str.) is diploid (2n=14), Australian material is hexaploid (2n=42). If Australian specimens are to be distinguished, they will require a new name, as the names based on Australian types are later homonyms of other taxa in the genus.

Native distribution areas:

Continental: Australasia
- Regional: Australia
  - Australia (Western Australia, South Australia, New South Wales, Victoria, Tasmania)
- Regional: New Zealand
  - New Zealand
Continental: Europe
- Regional: Northern Europe
  - Great Britain, Ireland
- Regional: Middle Europe
  - Belgium, Germany, Netherlands
- Regional: Southwestern Europe
  - France

Hassler, M. 2019. Crassula helmsii. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2019 November 23. Reference page.
Govaerts, R. et al. 2019. Crassula helmsii in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 November 23. Reference page.
International Plant Names Index. 2019. Crassula helmsii. Published online. Accessed: November 23 2019.
Tropicos.org 2019. Crassula helmsii. Missouri Botanical Garden. Published online. Accessed: 23 November 2019.
USDA, ARS, Germplasm Resources Information Network. Crassula helmsii in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.
Crassula helmsii Fact Sheet New Zealand Plant Conservation Network.

Cymraeg: Corchwyn Seland Newydd
English: New Zealand Pygmyweed
hornjoserbsce: Jehličkowa tołsćinka
Nederlands: Watercrassula