Equisetum diffusum

Taxonavigation

Taxonavigation: Equisetales
Superregnum: Eukaryota Regnum: Plantae Divisio: Tracheophyta Divisio: Pteridophyta Classis: Equisetopsida Ordo: Equisetales

Familia: Equisetaceae
Genus: Equisetum
Subgenus: E. subg. Equisetum
Species: Equisetum diffusum

Name

Equisetum diffusum D.Don, Prodr. Fl. Nepal. 19 (1825).

• Lectotype (designated by Fraser-Jenkins et al., 2015): Nepal, 1819. N. Wallich s.n. (BM, right hand specimen marked as number 2).

Synonyms

• Homotypic
  • Equisetum arvense subsp. diffusum (D.Don) Fraser-Jenk., Ferns and Fern-allies of Nepal 1: 87 (2015).

• Heterotypic
  • Equisetum diffusum var. caespitosum Milde, Monogr. Equiset.: 307. 1867.
  • Equisetum diffusum var. ramosum Milde, Monogr. Equiset.: 307. 1867.
  • Equisetum diffusum var. nudum Milde, Monogr. Equiset.: 307. 1867.
  • Equisetum diffusum var. polystachyum Milde, Verh. K.K. Zool.-Bot. Ges. Wien 13: 225. 1863.
    • Type: Nepal. Lambert in herb. Martius (Holotypus: M).
  • Equisetum diffusum var. paucidentatum C.N.Page, Fern Gaz. 11: 31. 1975 [1974 publ. 1975]
    • Typus: Neapl. Near Manikot, 7500ft, 8 October 1954, Stainton, Sykes & Williams 4734 (Holotypus: E-00413852!, isotype: BM-001038177!).
  • Equisetum mekongense C.N.Page, Fern Gaz. 11: 36. 1975 [1974 publ. 1975]
  • Equisetum wallichianum C.N.Page, Fern Gaz. 11: 34. 1975 [1974 publ. 1975], pro hybr.

Distribution

Native distribution areas:

Continental: Asia-Temperate Regional: China China South-Central, China North-Central, China Southeast, Tibet. Continental: Asia-Tropical Regional: Indian Subcontinent Assam, Bangladesh, East Himalaya, India, Nepal, Pakistan, West Himalaya. Regional: Indo-China Laos, Myanmar, Thailand, Vietnam. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Additional references

• Christenhusz, M.J.M., Bangiolo, L., Chase, M.W., Fay, M.F., Husby, C.E., Witkus, M. & Viruel, J. 2019. Phylogenetics, classification and typification of extant horsetails (Equisetum, Equisetaceae). Botanical Journal of the Linnean Society 189(4): 311–352. DOI: 10.1093/botlinnean/boz002 . Reference page. 

Links

• Hassler, M. 2020. World Ferns. Checklist of Ferns and Lycophytes of the World. (Version 8.30 - April 2020). Equisetum diffusum Accessed: 16 Apr 2020.
• Govaerts, R. et al. 2020. Equisetum diffusum in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Apr 16. Reference page.