Hypericum perforatum Scorecard

Species:  Hypericum perforatum

Common Name:  common St. John's wort

Scorecard created on
Last Updated on

Results

Impact Total:11 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:11 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:High

Confidence Notes:

Impact

SpreadNotesScore
Spread RateRapid reproduction, rapid growth.4
Spread AmountAssociated with human dispersal, potential to be widespread, except in deserts.4
DamageNotesScore
EcologicalSerious impacts to grasslands.4
AgriculturalPhotosensitivity in cattle.3
Infrastructure0
CulturalAesthetic impacts.2
HealthPhotosensitivity if large quantity ingested in humans.1
BenefitNotesScore
EcologicalMajor competitor of natives.0
AgriculturalSome medicinal use.1
Infrastructure0
CulturalImportant use as medicine.3
HealthNumerous uses.3
Total11

Ability to Respond

Ease of ResponseNotesScore
DetectionDetection occurs after establishment.3
ControlDifficult to control once established.2
Tools in PlaceNotesScore
EntryCDFA C list.1
ControlSuccessful biocontrol in place but some spreading.3
OutreachOutreach info widely distributed, but some complacency. On Cal-IPC and CDFA lists.2
Total11

References

No references yet.