Plant |
Leaves |
Flower |
Fruit |
|
Plant |
Leaves |
|
Flower |
Fruit |
Height: 5-20cm
Rarely Mycorrhizal
Perennial, Persistent Seed Bank
Hermaphrodite, Flowering June - September
(Earliest: 15.6)
| Protective Chemicals | |||||
|---|---|---|---|---|---|
| Monoterpenoids | Pinene | ||||
| Flavonoids | Hyperoside | ||||
| Other Phenolics | Tannins | ||||
| Quinonoids | Hyperforin, Hypericin | ||||
| Biotopes: |
Spruce Forest Edge | |||
| Pollination: | Autopollination | |||
| Flower Visitors: |
Eupeodes corollae |
Rhamphomyia longipes | ||
| Parasites: |
Erysiphe hyperici |
Sphaerulina hyperici | ||
| Herbivores: |
Cnephasia asseclana |
Cnephasia incertana | ||
| Possible Herbivores: |
Archips xylosteana Larva |
Cnephasia longana Larva |
Alcis repandata Larva |
Pachyprotasis antennata Larva |
Pachyprotasis rapae Larva | ||||
| Possible Sapivores: |
Lygus wagneri |
Macrosiphum euphorbiae | ||
| Possible Florivores: |
Cryptocephalus hypochaeridis | |||
| Possible Granivores: |
Rhopalus parumpunctatus |
Ecological Flora of the British Isles
Skye Flora:
Trailing St John's Wort
Pictures © 2003, 2004, 2005 J.K. Lindsey
Back to Ecology of Commanster