Plant |
Leaf |
Flower |
Fruit |
|
Plant |
Leaf |
|
Flower |
Fruit |
Height: 20-40cm
Occasionally Arbuscular Mycorrhizal
Perennial, Persistent Seed Bank
Hermaphrodite, Flowering June - September
(Earliest: 14.6)
| Protective Chemicals | |||||
|---|---|---|---|---|---|
| Terpenoids | Pinene | ||||
| Flavonoids | Hyperoside | ||||
| Other Phenolics | Tannins | ||||
| Quinonoids | Hyperforin, Hypericin | ||||
| Biotopes: |
Heath and Moorland |
Beech Forest Edge | ||
| Pollination: | Autopollination | |||
| Flower Visitors: |
Several Apidae |
Helina impuncta |
Anthaxia quadripunctata | |
| Parasites: |
Sphaerulina hyperici |
Euspilapteryx auroguttella Larva (Leaf Miner) | ||
| Herbivores: |
Several Tortricidae |
Chrysolina varians | ||
| Possible Herbivores: |
Archips xylosteana Larva |
Cnephasia longana Larva |
Alcis repandata Larva |
Pachyprotasis antennata Larva |
Pachyprotasis rapae Larva | ||||
| Possible Sapivores: |
Lygus wagneri | |||
| Possible Florivores: |
Cryptocephalus hypochaeridis |
Macrosiphum euphorbiae | ||
| Granivores: |
Rhopalus maculatus | |||
| Possible Granivores: |
Rhopalus parumpunctatus |
Ecological Flora of the British Isles
Skye Flora:
Slender St John's Wort
Pictures © 2003, 2004, 2005 J.K. Lindsey
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