Canada Thistle – Fruit & Pappus
Canada Thistle Cirsium arvense (L.) Scop. An introduced, erect, leafy and variable perennial up to 1.5 m tall that spreads by underground rhizomes forming clones. Stems are hollow and become hairy with age Leaves are alternate and without stalks and the base may clasp...
Canada Thistle – Bracts
Canada Thistle Cirsium arvense (L.) Scop. An introduced, erect, leafy and variable perennial up to 1.5 m tall that spreads by underground rhizomes forming clones. Stems are hollow and become hairy with age Leaves are alternate and without stalks and the base may clasp...
Canada Thistle – Flower
Canada Thistle Cirsium arvense (L.) Scop. An introduced, erect, leafy and variable perennial up to 1.5 m tall that spreads by underground rhizomes forming clones. Stems are hollow and become hairy with age Leaves are alternate and without stalks and the base may clasp...
Canada Thistle – Infestation
Canada Thistle Cirsium arvense (L.) Scop. An introduced, erect, leafy and variable perennial up to 1.5 m tall that spreads by underground rhizomes forming clones. Stems are hollow and become hairy with age Leaves are alternate and without stalks and the base may clasp...
Canada Thistle – Shoots
Canada Thistle Cirsium arvense (L.) Scop. An introduced, erect, leafy and variable perennial up to 1.5 m tall that spreads by underground rhizomes forming clones. Stems are hollow and become hairy with age Leaves are alternate and without stalks and the base may clasp...
Canada Lettuce – Sap
Canada Lettuce Lactuca canadensis L. An erect biennial up to 2.5 m tall with few lateral branches. Leaf shape is highly variable but generally plants have deeply lobed leaves and the margins may be toothed or smooth. The stem and leaves contain a milky white sap....
Canada Lettuce – Leaf
Canada Lettuce Lactuca canadensis L. An erect biennial up to 2.5 m tall with few lateral branches. Leaf shape is highly variable but generally plants have deeply lobed leaves and the margins may be toothed or smooth. The stem and leaves contain a milky white sap....
Canada Lettuce – Flower
Canada Lettuce Lactuca canadensis L. An erect biennial up to 2.5 m tall with few lateral branches. Leaf shape is highly variable but generally plants have deeply lobed leaves and the margins may be toothed or smooth. The stem and leaves contain a milky white sap....
Canada Lettuce – Bolting Plant
Canada Lettuce Lactuca canadensis L. An erect biennial up to 2.5 m tall with few lateral branches. Leaf shape is highly variable but generally plants have deeply lobed leaves and the margins may be toothed or smooth. The stem and leaves contain a milky white sap....
Canada Lettuce – Immature Plant
Canada Lettuce Lactuca canadensis L. An erect biennial up to 2.5 m tall with few lateral branches. Leaf shape is highly variable but generally plants have deeply lobed leaves and the margins may be toothed or smooth. The stem and leaves contain a milky white sap....
Bunchberry – Fruit
Bunchberry (Pigeon berry) Cornus canadensis L. A short perennial spreading by underground rhizomes usually found in large patches. Leaves are smooth, deep green with parallel veins meeting at the tip and are found in a whorl of 4 to 6, often with 2 smaller and...
Bunchberry – Flower
Bunchberry (Pigeon berry) Cornus canadensis L. A short perennial spreading by underground rhizomes usually found in large patches. Leaves are smooth, deep green with parallel veins meeting at the tip and are found in a whorl of 4 to 6, often with 2 smaller and...
Bunchberry – Shoot
Bunchberry (Pigeon berry) Cornus canadensis L. A short perennial spreading by underground rhizomes usually found in large patches. Leaves are smooth, deep green with parallel veins meeting at the tip and are found in a whorl of 4 to 6, often with 2 smaller and...
Bristly Sarsparilla – Fruit
Bristly Sarsparilla Aralia hispida Vent. A much-branched perennial up to 1.0 m tall arising from a stout rhizome or underground stem. Extensively bristled at the base of the plant; less so near the top. Pinnately compound leaves with 5 or more sharply toothed...
Bristly Sarsparilla – Early Flower
Bristly Sarsparilla Aralia hispida Vent. A much-branched perennial up to 1.0 m tall arising from a stout rhizome or underground stem. Extensively bristled at the base of the plant; less so near the top. Pinnately compound leaves with 5 or more sharply toothed...














