Cirsium acaule (L.) Scop.
(Dwarf Thistle, Stemless Thistle, Picnic Thistle)

Interactions where Cirsium acaule is the victim or passive partner (and generally loses out from the process)

The following relationships have been collated from the published literature (see 'Interaction References').

Filters:

Affected Part		Summary			Taxon	Vernacular	Classification	References	Darwin Classification of Active Taxon	Active Taxon	Active Vernacular	Active Taxon Uncertain	Active State	Active Part	Active Stage	Relationship	Relationship Uncertain	Relationship Geography	Darwin Classification of Passive Taxon	Passive Taxon	Passive Vernacular	Passive Taxon Uncertain	Passive State	Passive Part	Passive Stage	Passive Taxon's significance to Active Taxon	Indoors etc	Season	Summary
		is foodplant of larva			Terellia ruficauda	Red-tailed Thistle Fly	Diptera: Tephritidae	Tephritid Flies (Diptera: Tephritidae), White, I.M., 1988	/Animalia/Arthropoda/Insecta/Diptera/Tephritidae/Terellia ruficauda/	Terellia ruficauda	red-tailed thistle fly				larva	Foodplant / feeds on		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle								larva feeds on
(live)		live is parasitised by			Golovinomyces cichoracearum	a powdery mildew	Erysiphales: Erysiphaceae	An Introduction to British Powdery Mildews, Ing, B., 1990	/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Golovinomyces cichoracearum/	Golovinomyces cichoracearum	a powdery mildew					Foodplant / parasite		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle		live						parasitises live
(live)		live is parasitised by pycnium			Puccinia calcitrapae	a rust fungus	Pucciniales: Pucciniaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia calcitrapae/	Puccinia calcitrapae	a rust fungus				pycnium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle		live						pycnium parasitises live
capitulum		capitulum may contain larva			Chaetostomella cylindrica	a gall fly	Diptera: Tephritidae	Tephritid Flies (Diptera: Tephritidae), White, I.M., 1988	/Animalia/Arthropoda/Insecta/Diptera/Tephritidae/Chaetostomella cylindrica/	Chaetostomella cylindrica	a gall fly				larva	Foodplant / internal feeder		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle			capitulum					larva feeds within capitulum
capitulum		capitulum may contain larva			Tephritis conura	Melancholy Thistle Fly	Diptera: Tephritidae	Tephritid Flies (Diptera: Tephritidae), White, I.M., 1988	/Animalia/Arthropoda/Insecta/Diptera/Tephritidae/Tephritis conura/	Tephritis conura	melancholy thistle fly				larva	Foodplant / internal feeder		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle			capitulum					larva feeds within capitulum
leaf (live)		live leaf is parasitised by uredinoid, mostly epiphyllous aecium			Puccinia calcitrapae	a rust fungus	Pucciniales: Pucciniaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia calcitrapae/	Puccinia calcitrapae	a rust fungus		uredinoid, mostly epiphyllous		aecium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle		live	leaf					uredinoid, mostly epiphyllous aecium parasitises live leaf
leaf (live)		live leaf is parasitised by mostly hypophyllous uredium			Puccinia calcitrapae	a rust fungus	Pucciniales: Pucciniaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia calcitrapae/	Puccinia calcitrapae	a rust fungus		mostly hypophyllous		uredium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle		live	leaf					mostly hypophyllous uredium parasitises live leaf
leaf (live)		live leaf is parasitised by mostly hypophyllous telium			Puccinia calcitrapae	a rust fungus	Pucciniales: Pucciniaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia calcitrapae/	Puccinia calcitrapae	a rust fungus		mostly hypophyllous		telium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cirsium acaule/	Cirsium acaule	dwarf thistle, stemless thistle, picnic thistle		live	leaf					mostly hypophyllous telium parasitises live leaf

Author & Year	Title	Source
Ellis, M.B. & J.P., 1997	Microfungi on Land Plants: An Identification Handbook	2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Ing, B., 1990	An Introduction to British Powdery Mildews	Mycologist Vol 4 (1) et seq.
White, I.M., 1988	Tephritid Flies (Diptera: Tephritidae)	Handbooks for the Identification of British Insects , Vol 10. Part 5a, 134pp, The Royal Entomological Society of London

Cirsium acaule (Dwarf Thistle, Stemless Thistle, Picnic Thistle) may also be included in 'fed on by' relations listed under the following higher taxa:

Cirsium
(thistle)

ASTERACEAE
(daisies, dandelions and thistles, composite)

EU-DICOTS
(dicotyledonous flowering plants)

MAGNOLIOPSIDA
(flowering plants)

TRACHEOPHYTA
(vascular plants)

PLANTAE
(plants)

Tall Woody Herbs
(tall woody herbs)

Carlina/Carduus/Cirsium
(thistles)

Herbaceous Plants
(herbaceous plants)

Taxonomic hierarchy:

Species	Cirsium acaule (Dwarf Thistle, Stemless Thistle, Picnic Thistle)
Genus	Cirsium (thistle)
Tribe	Cardueae (“thistles”)
Subfamily	LACTUCOIDEAE (“dandelions”)
Family	ASTERACEAE (daisies, dandelions and thistles, composite)
Order	ASTERALES (daisies, dandelions, thistles and bell flowers)
Subclass	EU-DICOTS (dicotyledonous flowering plants)
Class	MAGNOLIOPSIDA (flowering plants)
Phylum	TRACHEOPHYTA (vascular plants)
Kingdom	PLANTAE (plants)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Cirsium acaule is also a member of:
Tall Woody Herbs - tall woody herbs (via Cirsium)
Carlina/Carduus/Cirsium - thistles (via Cirsium)
Herbaceous Plants - herbaceous plants (via Asteraceae)

NBN

NBN (data.nbn.org.uk) has a distribution map for Cirsium acaule (Dwarf Thistle, Stemless Thistle, Picnic Thistle)

Cirsium acaule (Dwarf Thistle, Stemless Thistle, Picnic Thistle) may be included in identification literature listed under the following higher taxa:

ASTERACEAE
(daisies, dandelions and thistles, composite)

MAGNOLIOPSIDA
(flowering plants)

TRACHEOPHYTA
(vascular plants)

PLANTAE
(plants)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Literature listed under the following higher taxa may be relevant to Cirsium acaule (Dwarf Thistle, Stemless Thistle, Picnic Thistle):

Cardueae
(“thistles”)

ASTERACEAE
(daisies, dandelions and thistles, composite)

MAGNOLIOPSIDA
(flowering plants)

TRACHEOPHYTA
(vascular plants)

PLANTAE
(plants)

Eukaryota
(eukaryotes)

BIOTA
(living things)

BioImages

BioImages (www.bioimages.org.uk) has 11 images of Cirsium acaule (Dwarf Thistle, Stemless Thistle, Picnic Thistle)

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