Crepis biennis Linnaeus 1753 (Family Asteraceae)


Plant

Leaf

Flower

Fruit

Height: 30-120cm
Arbuscular Mycorrhizal
Annual
Hermaphrodite, Flowering June - July (Earliest: 19.5)

Protective Chemicals
Sesquiterpenoids Ixerin
Flavonoids Luteolin
Other Phenolics Caffeic Acid
Phthalates Dibutyl Phthalate

Biotopes:
Meadows
Flower Visitors:
Andrena angustior

Bombus lapidarius

Several Syrphidae

Anthomyia liturata
Seed Dispersal: Wind
Parasites:
Golovinomyces cichoracearum

Podosphaera fusca

Synchytrium taraxaci

Ensina sonchi Larva (Flower Gall)

Several Agromyzidae
Possible Parasites:
Cheilosia latifrons Larva (Root & Stem Borer)

Ophiomyia pulicaria Larva (Leaf Miner)
Possible Herbivores:
Several Tortricidae
Sapivores:
Uroleucon cichorii

Uroleucon hypochoeridis
Possible Florivores:
Eupithecia subumbrata Larva

Ecological Flora of the British Isles


Pictures © 2003, 2005, 2007, 2009, 2011 J.K. Lindsey

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