SCIENTIFIC NAME: Hypericum sphaerocarpum
COMMON NAMES: Round-fruited St. John's Wort, Roundseed St. Johnswort
BLOOM TIME: June, July, Aug, Sept
- Bumblebees & other long-tongued bees are probably the most important pollinators of the flowers.
- Insects collect or feed on the abundant pollen, because the flowers offer no nectar.
- The caterpillars of the Gray Hairstreak butterfly reportedly eat the seed capsules, although it is not a preferred host plant.
- Like other St. John's Worts, the foliage of this species contains a toxic chemical that causes photosensitive skin reactions, particularly in light-skinned animals, and can irritate the gastrointestinal tract.
- Mammalian herbivores usually leave this plant alone if other food sources are available.