Sonchus asper (Linnaeus 1753) Hill 1769 (Family Asteraceae)


Plant

Leaf

Flower

Fruit

Height: 20-60cm
Occasionally Arbuscular Mycorrhizal
Annual, Persistent Seed Bank
Hermaphrodite, Flowering June - October (Earliest: 30.5)

Protective Chemicals
Sesquiterpenoids Sonchuside
Flavonoids Icariside, Sonchuionoside

Biotopes:
Meadows

Around Buildings
Microhabitat:
Bare Ground
Flower Visitors:
Bombus bohemicus

Sphaerophoria interrupta

Syritta pipiens

Siphona cristata
Seed Dispersal: Wind
Parasites:
Ascochyta sonchi

Golovinomyces cichoracearum

Scrobipalpa acuminatella Larva (Leaf Miner)

Several Agromyzidae

Cystiphora sonchi

Ensina sonchi Larva
(Flower Gall)
Possible Parasites:
Ophiomyia pulicaria Larva
(Leaf Miner)
Possible Herbivores:
Several Tortricidae Larva

Naenia typica Larva

Agonopterix arenella Larva

Cassida rubiginosa
Sapivores:
Protrama flavescens
Possible Sapivores:
Aulacorthum solani

Ecological Flora of the British Isles
Skye Flora: Prickly Sow-thistle


Pictures © 2003, 2005 J.K. Lindsey

Caution

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