Glyceria declinata Scorecard

Species:  Glyceria declinata

Common Name:  waxy mannagrass

Scorecard created on
Last Updated on

Results

Impact Total:13 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:3 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:Medium

Confidence Notes:

Impact

SpreadNotesScore
Spread RateSpreads via seed.3
Spread AmountIt has invaded deep vernal pools, swales, ditches, and stock ponds. Also spreading in rice fields. A Central Valley problem.3
DamageNotesScore
EcologicalPotential to out compete native species in habitat already greatly reduced.4
AgriculturalProblem in rice fields.3
Infrastructure0
Cultural0
Health0
BenefitNotesScore
Ecological0
Agricultural0
Infrastructure0
Cultural0
Health0
Total13

Ability to Respond

Ease of ResponseNotesScore
DetectionDifficult to detect until established.1
ControlGrows among natives, difficult.1
Tools in PlaceNotesScore
EntryNo regulatory barriers in place.0
Control0
OutreachSome outreach in the rice community, and on Cal-IPC list.1
Total3

References

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