Toronto native plants starting with J: Jeffersonia diphylla to Justicia americana

(Updated November 29, 2009).

It's exciting to see how many possibilities for native plant garderners there are in Toronto (something you'd never guess from the average Toronto plant seller, unfortunately.) I've put a link to the relevant entries in this blog where available. I have tried to be as accurate as possible but I'm no expert so any corrections to this list would be appreciated!

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J

• Jeffersonia diphylla (twinleaf), rare. Banville, CCC, LBJ, NANPS, P&M, PLANTS. More info: DG.
• Juglans cinerea (butternut), uncommon. Banville, CC rare, LBJ, NANPS, PLANTS. More info: Chester, DG.
• Juglans nigra (black walnut), rare. Banville, CCC, LBJ, NANPS, PLANTS. More info: Chester, DG.
• Juncus acuminatus (sharp-fruited rush, tapertip rush), rare. Banville, CC rare, PLANTS.
• Juncus alpinoarticulatus (northern green rush), rare. Banville, PLANTS.
• Juncus alpinus: see J. alpinoarticulatus.
• Juncus anthelatus (greater poverty rush). PLANTS.
• Juncus arcticus (arctic rush). PLANTS.
• Juncus arcticus ssp. littoralis (mountain rush), uncommon. Banville, NANPS (as J. balticus), PLANTS, PtS (as J. balticus).
• Juncus articulatus (jointed rush), common. Banville, NANPS, PLANTS, PtS.
• Juncus balticus var. littoralis: see J. arcticus ssp. littoralis.
• Juncus biflorus (rush). CC rare, PLANTS.
• Juncus brachycarpus (short-fruit rush). CC rare, PLANTS.
• Juncus brachycephalus (small-headed rush), rare. Banville, LBJ, PLANTS.
• Juncus brevicaudatus (narrow panicle rush). PLANTS.
• Juncus bufonis (toad rush), common. Banville, PLANTS.
• Juncus canadensis (Canada rush). NANPS, PLANTS.
• Juncus dudleyi (Dudley's rush), common. Banville, PLANTS.
• Juncus effusus (common rush). NANPS, PLANTS, PtS. More info: DG.
• Juncus effusus var. solutus (soft rush), common. Banville, LBJ, PLANTS.
• Juncus ensifolius (swordleaf rush). PLANTS.
• Juncus filiformis (thread rush). PLANTS.
• Juncus gerardii (saltmeadow rush), rare. Banville, PLANTS.
• Juncus greenei (Greene's rush). CC rare, PLANTS.
• Juncus longistylis (long-styled rush). CC rare, PLANTS.
• Juncus marginatus (grassleaf rush). CC rare, PLANTS.
• Juncus nodosus (knotted rush), uncommon. Banville, PLANTS.
• Juncus pelocarpus (brownfruit rush). PLANTS.
• Juncus secundus (secund rush, lopsided rush). CC rare, PLANTS.
• Juncus stygius (moor rush). PLANTS.
• Juncus tenuis (poverty rush), common. Banville, PLANTS, PtS. More info: DG.
• Juncus torreyi (Torrey's rush), common. Banville, LBJ, PLANTS, PtS.
• Juncus vaseyi (Vasey rush). CC rare, PLANTS.
• Juniperus communis (common juniper). Banville, LBJ, PLANTS. More info: DG.
• Juniperus horizontalis (creeping juniper). LBJ, PLANTS. More info: DG.
• Justicia americana (water-willow). CCC, CC SAR, LBJ, P&M, PLANTS.

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References

• Me: I've seen it myself, in the wild in Toronto.
• Banville: Banville, Diana. Vascular Plants of Metropolitan Toronto 2nd ed.. Toronto: Toronto Field Naturalists, 1994. (Available by mail order from TFN.)
• CCC: Carolinian Canada Coalition's list of Representative Carolinian Species.
• CC rare: Carolinian Canada Coalitions's list of Carolinian Zone Rare Species
• CC SAR: Carolinian Canada Coalition's list Carolinian Species at Risk
• LBJ: Lady Bird Johnson Wildflower Center.
• NANPS: North American Native Plant Society
• P&M: Peterson, Roger Tory and Margaret McKenny. A field guide to wildflowers: Northeastern and northcentral North America. Boston: Houghton Mifflin Company, 1968.
• PLANTS: United States Department of Agriculture PLANTS Database PtS: Planting the Seed (PDF): A Guide to Establishing Prairie and Meadow Communities in Southern Ontario

Info

• Chester: Bronwyn Chester at Spacing Montréal
• DG: Dave's Garden