Flowers: June - August
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Ligusticum tenuifolium in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Ligusticum tenuifolium checklist entry
OregonFlora: Ligusticum tenuifolium information
E-Flora BC: Ligusticum tenuifolium atlas page
CalPhotos: Ligusticum tenuifolium photos