Xanthium

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Xanthium L. Clotbur Cocklebur Sappiruohot

Xanthium; [CoL] ; [iNaturalist] ; [POWO]
Xanthium (Asteraceae); [GNSP]

Foodplants for Ostrinia obumbratalis, O. scapulalis, O. zaguliaevi, Teladoma helianthi

1400x933 (~288Kb) USA: Stop at Colorado River on rd. 128 (38°40'56"N, 109°28'42"W), Grand Co., Utah, 15.8.2005, Photo © Markku Savela

1000x1441 (~218Kb) USA: Stop at Colorado River on rd. 128 (38°40'56"N, 109°28'42"W), Grand Co., Utah, 15.8.2005, Photo © Markku Savela

1200x788 (~143Kb) USA: Stop at Colorado River on rd. 128 (38°40'56"N, 109°28'42"W), Grand Co., Utah, 15.8.2005, Photo © Markku Savela

The exact identification of these species is still unknown, but tentatively assumed to belong into this group.

Xanthium strumarium L. Common Cocklebur
- Xanthium strumarium brasilicum; [iNaturalist]
- Xanthium strumarium sibiricum; [iNaturalist]
- Xanthium strumarium strumarium; [iNaturalist]
- Xanthium strumarium; [FPN], 557; [SK], 582; [CoL] ; [iNaturalist] ; [POWO]
Foodplant for Helcystogramma melantherella
- ssp. italicum (Moretti) D. Löve Karheasappiruoho Piikitön sappiruoho Gullfrö
  - Xanthium italicum Moretti
  - Xanthium orientale italicum; [iNaturalist]
  - Xanthium orientale var. italicum; [CoL]
  - Xanthium strumarium ssp. italicum; [RK], 421
- var. canadense (Mill.) T. & G.
  - Xanthium canadense (Mill.) T. & G.
  - Xanthium strumarium canadense; [iNaturalist]
  - Xanthium strumarium var. canadense; [FPN], 557
- var. glabratum (DC.) Cronq.
  - Xanthium glabratum (DC.) Cronq.
  - Xanthium strumarium glabratum; [iNaturalist]
  - Xanthium strumarium var. glabratum; [FPN], 557
Xanthium spinosum L. Spiny Cocklebur Piikkisappiruoho Piikkinen sappiruoho Titselgullfrö
- Xanthium spinosum subsp. catharticum; [CoL] ; [POWO]
- Xanthium spinosum subsp. spinosum; [CoL] ; [POWO]
- Xanthium spinosum; [RK], 421; [SK], 582; [GMBOT], 829; [FPN], 557; [CoL] ; [iNaturalist] ; [POWO]
Xanthium canadense Mill.
- ?Xanthium pensylvanicum Wallr.
- Xanthium pungens Wallr.
- Xanthium glabratum Britton.
- Xanthium canadense; [GMBOT], 829
Xanthium commune Britton
- Xanthium commune; [GMBOT], 829
Xanthium speciosum Kearney
- Xanthium speciosum; [GMBOT], 829
Xanthium inflexum Mackenzie & Bush.
- Xanthium inflexum; [GMBOT], 829
Xanthium echinatum Murr.
- Xanthium canadense var. echinatum (Murr.) Gray
- Xanthium echinatum; [GMBOT], 829; [iNaturalist]

Unmatched external taxa

Xanthium ambrosioides; [CoL] ; [POWO]
Xanthium argenteum; [POWO]
Xanthium catharticum; [iNaturalist]
Xanthium cavanillesii; [iNaturalist]
Xanthium chinense; [POWO]
Xanthium occidentale; [CoL]
Xanthium orientale var. albinum; [CoL]
Xanthium orientale var. riparium; [CoL]
Xanthium orientale var. saccharatum; [CoL]
Xanthium orientale; [CoL] ; [iNaturalist]
Xanthium orientale orientale; [iNaturalist]
Xanthium orientale riparium; [iNaturalist]
Xanthium orientale californicum; [iNaturalist]
Xanthium orientale; [POWO]
Xanthium × vayredae; [POWO]

30.1.2022 (7)

References:

[CoL] Catalogue of Life
Bánki, O., Roskov, Y., Döring, M., Ower, G., Hernández Robles, D. R., Plata Corredor, C. A., Stjernegaard Jeppesen, T., Örn, A., Vandepitte, L., Hobern, D., Schalk, P., DeWalt, R. E., Ma, K., Miller, J., Orrell, T., Aalbu, R., Abbott, J., Adlard, R., Aedo, C., et al. (2024). Catalogue of Life Checklist (Version 2024-03-26); https://doi.org/10.48580/dfz8d
[POWO]
Plants of the Wolrd Online; World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew
[iNaturalist]
iNaturalist

Some related literature:

[FPN]; Hitchcock & Cronquist, 1998
Flora of the Pacific Northwest (11th edn) Fl. Pacif. NW
[RK]; Hämet-Ahti, Suominen, Ulvinen & Uotila, 1998
Retkeilykasvio (Field Flora of Finland) (Edn 4) Retkeylykasvio : 1-656
[SK]; Mela & Cajander, 1906
A. J. Melan Suomen Kasvio (5. painos) Suomen Kasvio : 1-763
[GMBOT]; Robinson & Fernald, 1908
A Handbook of the Flowering Plants and Ferns of the Central and Northeastern United States and adjacent Canada Gray's Manual Botany (7th Ed.) : 10-926
[GNSP]; Wielgorskaya, 1995
Dictionary of generic names of seed plants Dict. gen. names seed. pl.

If you have corrections, comments or information to add into these pages, just send mail to Markku Savela
Keep in mind that the taxonomic information is copied from various sources, and may include many inaccuracies. Expert help is welcome.