Wavyleaf Thistle

Cirsium undulatum (Nutt.) Spreng.

are eaten by

• Global Biotic Interactions: Terellia palposa (Loew 1862)
• Global Biotic Interactions: Euphoria kernii Haldeman 1852
• Global Biotic Interactions: Euphoria inda (Linnaeus 1758) (Bumble Flower Beetle)
• Global Biotic Interactions: Epicauta (Epicauta) strigosa (Gyllenhal 1817)
• Global Biotic Interactions: Perdix perdix (Linnaeus 1758) (Gray Partridge)

are host of

• Global Biotic Interactions: Myotis polyomavirus VM-2008
• Global Biotic Interactions: Myotis polyomavirus VM-2008
• Global Biotic Interactions: Pipistrellus bat coronavirus HKU5
• Global Biotic Interactions: Pipistrellus bat coronavirus HKU5
• Global Biotic Interactions: Myotis polyomavirus VM-2008

are parasitized by

• Global Biotic Interactions: Rhinocyllus conicus (Froelich & J. A. 1792) (Thistle Head Weevil)
• Global Biotic Interactions: Rhinocyllus conicus (Froelich & J. A. 1792) (Thistle Head Weevil)
• Global Biotic Interactions: Acmaeodera ornata (Fabricius 1775)

are visited by

• Global Biotic Interactions: Anthophora occidentalis Cresson 1869 (Western Anthophora)
• Global Biotic Interactions: Anthophora occidentalis Cresson 1869 (Western Anthophora)
• Global Biotic Interactions: Bombus nevadensis Cresson 1874 (Nevada Bumble Bee)
• Global Biotic Interactions: Bombus nevadensis Cresson 1874 (Nevada Bumble Bee)

have flowers visited by

• Global Biotic Interactions: Hesperia ottoe Edwards 1866 (Ottoe Skipper)
• Global Biotic Interactions: Atrytone delaware Edwards 1863
• Global Biotic Interactions: Anthophora urbana Cresson 1879
• Global Biotic Interactions: Hesperia pahaska Leussler 1938 (Pahaska Skipper)
• Global Biotic Interactions: Melissodes trinodis Robertson 1901