Slough Thistle / Center For Plant Conservation
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Plant Profile

Slough Thistle (Cirsium crassicaule)

  • Global Rank: G1 - Critically Imperiled
  • Legal Status: N/A
  • Family: Asteraceae
  • State: CA
  • Nature Serve ID: 135161
  • Lifeform: Forb/herb
  • Date Inducted in National Collection: 12/10/2024
Description:

Where is Slough Thistle (Cirsium crassicaule) located in the wild?

States & Provinces:

Slough Thistle can historically be found in California

Which CPC Partners conserve Slough Thistle (Cirsium crassicaule)?

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

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Nomenclature
Taxon Cirsium crassicaule
Authority (Greene) Jepson
Family Asteraceae
CPC Number 951
ITIS 36359
USDA CICR
Duration Annual
Common Names Slough Thistle
Associated Scientific Names Cirsium crassicaule
Distribution
State Rank
State State Rank
California S2
Ecological Relationships

Photos
Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Sweat bees Agapostemon radiatus Not Specified Link
Sweat bees Agapostemon texanus Not Specified Link
Sweat bees Agapostemon viridulus Not Specified Link
Anthophorine bees Amegilla walshii Not Specified Link
Leaf-cutting bees Megachile verbesinae Not Specified Link
Honey bees Apis mellifera Not Specified Link
Long-horned bees Melissodes agilis Not Specified Link
Long-horned bees Melissodes bimaculata Not Specified Link
Long-horned bees Melissodes cnici Not Specified Link
Long-horned bees Melissodes coloradensis Not Specified Link
Bumble bees Bombias auricomus Not Specified Link
Long-horned bees Melissodes comptoides Not Specified Link
Bumble bees Bombias scutellaris Not Specified Link
Long-horned bees Melissodes simillima Not Specified Link
Bumble bees Bombias separatus Not Specified Link
Long-horned bees Melissodes trinodis Not Specified Link
Bumble bees Bombus americanorum Not Specified Link
Long-horned bees Melissodes variabilis Not Specified Link
Bumble bees Bombus consimilis Not Specified Link
Chimney bees Melitoma taurea Not Specified Link
Bumble bees Bombus impatiens Not Specified Link
Leaf-cutting bees Neotrypetes truncatus Not Specified Link
Sweat bees Odontalictus ligatus Not Specified Link
Centris bees Ceratina dupla Not Specified Link
Sweat bees Chloralictus pilosus Not Specified Link
Sweat bees Paranomia nortonii Not Specified Link
Sweat bees Chloralictus pruinosus Not Specified Link
Sweat bees Chloralictus sparsus Not Specified Link
Sweat bees Chloralictus versatus Not Specified Link
Cellophane bees Colletes eulophi Not Specified Link
Leaf-cutting bees Cyphopyga montivaga Not Specified Link
Bumble bees Psithyrus laboriosus Not Specified Link
Bumble bees Psithyrus variabilis Not Specified Link
Leaf-cutting bees Sayapis pugnata Not Specified Link
Chimney bees Emphor bombiformis Not Specified Link
Long-horned bees Epimelissodes obliqua Not Specified Link
Sweat bees Evylaeus pectoralis Not Specified Link
Cuckoo bees Triepeolus concavus Not Specified Link
Cuckoo bees Triepeolus concolor Not Specified Link
Cuckoo bees Triepeolus donatus Not Specified Link
Cuckoo bees Triepeolus nevadensis Not Specified Link
Cuckoo bees Triepeolus remigatus Not Specified Link
Leaf-cutting bees Xanthosarus latimanus Not Specified Link
Butterflies & Moths
Swallowtails Jasoniades glaucus Not Specified Link
Swallowtails Laertias philenor Not Specified Link
Skippers Limochores taumas Not Specified Link
Brush-footed butterflies Anosia plexippus Not Specified Link
Brush-footed butterflies Argynnis cybele Not Specified Link
Skippers Atrytone zabulon Not Specified Link
Brush-footed butterflies Basilarchia archippus Not Specified Link
Swallowtails Callidryas eubule Not Specified Link
Swallowtails Papilio asterias Not Specified Link
Brush-footed butterflies Phyciodes tharos Not Specified Link
Skippers Polites peckius Not Specified Link
Whites Pontia protodice Not Specified Link
Sphinx moths Deilephila lineata Not Specified Link
Noctuid moths Scepsis fulvicollis Not Specified Link
Brush-footed butterflies Speyeria idalia Not Specified Link
Swallowtails Euphoeades troilus Not Specified Link
Sulphurs Eurymus philodice Not Specified Link
Skippers Thorybes bathyllus Not Specified Link
Sphinx moths Hemaris thysbe Not Specified Link
Swallowtails Heraclides cresphontes Not Specified Link
Brush-footed butterflies Vanessa atalanta Not Specified Link
Brush-footed butterflies Vanessa cardui Not Specified Link
Sulphurs Xanthidia nicippe Not Specified Link
Beetles
Leaf beetles Diabrotica longicornis Not Specified Link
Scarab beetles Trichius piger Not Specified Link
Longhorn beetles Typocerus sinuatus Not Specified Link
Flies
Thick-headed flies Physocephala tibialis Not Specified Link
Bee flies Systoechus vulgaris Not Specified Link
Bee flies Exoprosopa fasciata Not Specified Link
Other
Seed bugs Lygaeus turcicus Not Specified Link

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