Fringed Yellow Loosestrife

Lysimachia ciliata

Pollinator Value

🐛 Larval Host: Nola cilicoides, Papaipema lysimachiae, Melanchra adjuncta
S13+S15 3 verified Eastern NA
🐝 Specialist Bee Host: Macropis ciliata, Macropis nuda, Macropis patellata, Macropis steironematis
S17 4 Lysimachia pollen-specialist Macropis spp.

Proximity Score: 0
Native Status: ✅ Outaouais ✅ Ottawa ✅ QC ✅ ON
Closest Direction: Local
CEC Eco-Regions: 5 – Northern Forests, 5.2 – Mixed Wood Shield, 5.2.3 – Algonquin/Southern Laurentians
Rarity Notes: Globally secure (G5), nationally secure in both Canada (N5) and the US (N5). S5 in both Ontario and Quebec. Not listed under SARA or COSEWIC. Common throughout the Ottawa-Gatineau region.
S22+S26
Rarity Ranks: QC S5 – Secure, ON S5 – Secure
Migration: Stable
Ecological Context: A rhizomatous perennial of moist to wet deciduous woodlands, floodplains, stream banks, swamps, and wet thickets. Typically found in partly shaded, rich organic soils with high moisture. Locally common along the Ottawa River corridor, with herbarium records from Gatineau Park, Aylmer, and the Papineau region. An important nectar and floral-oil source for specialist Macropis bees.
S10+S7+S48+S17

Roles: Fortress/Barrier, Pollinator Attractor
S73/S29/S72 Evidence: Fortress/Barrier: S61 keyword match: thorns? (supporting signal only)] | Pollinator Attractor: S73 [MEDIUM]: S68 7 bee associations (threshold=3)]
Notes: Well-suited for wet meadow and riparian guild plantings alongside other FACW species. OWSL pairs it with swamp milkweed, bluejoint reedgrass, Michigan lily, cardinal flower, and monkeyflower for moist to wet shade and part-shade gardens. All companions share similar moisture and light requirements.
S3

❌ Not Edible