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Sonchus L.

Valvatit Sow Thistle
Sonchus, Biota of North America Program (query database) [BONAP]
Sonchus, Den Virtuella Floran [DVF]
Sonchus (Asteraceae) ; [GNSP]

Foodplants for Agonopterix arenella, Antitype chi, Artimelia latreillei, Caradrina montana, Cucullia fraterna, Lemonia philopalus, L. taraxaci, Thysanoplusia daubei

552x800 (~133Kb) Finland, Espoo, ?July 2002, Photo 13072002_02 © Timo Viitanen

800x542 (~105Kb) Finland, Espoo, ?July 2002, Photo 13072002_03 © Timo Viitanen

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

Sonchus asper (L.) Hill

Otavalvatti Korkea valvatti Prickly Sow Thistle Spiny Sow Thistle Spiny-leaved Sow Thistle Svinmjölktistel Svinmolke
Sonchus asper ; [RK, 448]; [SK, 592]; [GMBOT, 866]

600x811 (~88Kb) FINLAND: Ka: Virolahti, Virojoki 671:53, 20.9.1997, Photo © Markku Savela Sonchus asper det. Jens Schou

Foodplant for Crombrugghia distans, Cucullia lactucae

S. a. var. asper

Sonchus asper var. asper ; [RK, 448]

S. a. var. pungens Bischoff

Sonchus asper var. pungens ; [RK, 448]

Sonchus oleraceus L.

Kaalivalvatti Milk-thistle Small Sow Thistle Common Sow Thistle Annual Sow Thistle Kålmjölktistel Kålmolke
Sonchus oleraceus, Bilder ur Nordens Flora (in Swedish) [RUNEBERG]
Sonchus oleraceus ; [RK, 448]; [SK, 592]; [GMBOT, 865]

540x772 (~63Kb) FINLAND: Ka: Virolahti, Virojoki 671:53, 20.9.1997, Photo © Markku Savela Sonchus cf. oleraceus det. Jens Schou

S. o. var. oleraceus

Sonchus oleraceus var. oleraceus ; [RK, 448]

S. o. var. lacerus Wallr.

Sonchus oleraceus var. lacerus ; [RK, 448]

Sonchus arvensis L.

Peltovalvatti Perennial Sow Thistle Field Sow Thistle Mjölktistel Åkermolke
Sonchus arvensis, Aquatic and Wetland Vascular Plants of the Northern Great Plains [USGS]
Sonchus arvensis ; [RK, 448]; [SK, 591]; [GMBOT, 865]

Foodplant for Autographa gamma, Crombrugghia distans, Cucullia lactucae, C. lucifuga, C. umbratica, Depressaria badiella, Eupithecia orphnata, Lacanobia oleracea, Mniotype bathensis, Simyra albovenosa

S. a. var. arvensis

Sonchus arvensis var. arvensis ; [RK, 449]

S. a. var. maritimus Wahlenb.

Merivalvatti

7.11.1998 (4)

References:

[BONAP]

A Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands; A data base interface; BONAP U.S. Checklist - 1998; Provided by TAMU-BWG; Texas A & M Bioinformatics Working Group; Based on; Biota of North America Program

[DVF]

Den Virtuella floran; http://linnaeus.nrm.se/flora/welcome.html; Ett projekt vid Naturhistoriska riksmuseet (Stockholm, Sweden).; Even for non-Swedish speaker, the distribution maps on species are nice (map buttons "Norden" and "Norra halvklotet")

[GMBOT]

Robinson, Benjamin L., Fernald, Merrit Lyndon, 1908; Gray's New Manual of Botany (7th edition); A Handbook of the Flowering Plants and Ferns of the Central and Northeastern United States and adjacent Canada; American Book Company

[GNSP]

Wielgorskaya, 1995; Dictionary of generic names of seed plants

[Jens Schou]

Jens Christian Schou; http://home13.inet.tele.dk/jcs

[RK]

Hämet-Ahti, L., Suominen, J., Ulvinen, T. & Uotila, P. (eds), 1998; Retkeilykasvio (Field Flora of Finland); Ed. 4. 656 pp.; Finnish Museum of Natural History, Botanical Museum. Helsinki

[RUNEBERG]

Project Runeberg: Nordic literature online; Project Runeberg; Bilder ur Nordens Fauna (Carl Axel Magnus Lindman)

[SK]

Mela, A. J., Cajander, A. K., 1906; Suomen Kasvio; Viides painos

[Timo Viitanen]

http://www.kuvarkisto.com/

[USGS]

Northern Prairie Wildlife Research Center; http://www.npwrc.usgs.gov/index.htm

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