Various Forms of Poison Ivy: September 13, 2021

Poison Ivy grows in forests and thickets, both wet and dry, and on open ground both wet and upland.

Poison Ivy (Toxicodendron rydbergii)

Those three leaflets help to identify it. Leaflets three? Quickly flee!

Poison Ivy (Toxicodendron rydbergii)

Sometimes the leaves are fringed.

Poison Ivy (Toxicodendron rydbergii)

Poison Ivy growing in shady situations turns yellow in fall:

Poison Ivy (Toxicodendron rydbergii)

In sunny situations it turns red:

Poison Ivy (Toxicodendron rydbergii)

New growth can look very shiny:

Poison Ivy (Toxicodendron rydbergii)

Berries come in white clusters. Berries white? Quick. Take flight!

Poison Ivy (Toxicodendron rydbergii)

Some views of Lambton Woods from this morning:

Dryad’s Saddle

Today’s group:

Some botany:

Amur Cork-tree (Phellodendron amurense)
Tree-of-heaven (Ailanthus altissima)
Nodding Bur-marigold (Bidens cernua)
Panicled Aster (Symphyotrichum lanceolatum)
Puffballs (photo: Eugene Knapik)
White Spruce (Picea glauca)
Water Smartweed (Persicaria amphibia)
Wild Parsnip (Pastinaca sativa)
Panicled Aster (Symphyotrichum lanceolatum)
Canada Goldenrod (Solidago canadensis)
Giant Ragweed (Ambrosia trifida)
Missouri Willow (Salix eriocephala)
Sandbar Willow (Salix exigua)
Purple Loosestrife (Lythrum salicaria)
Giant Ragweed (Ambrosia trifida)
Flat-topped Goldenrod (Euthamia graminifolia)

Bird Species list: double-crested cormorant, great egret, Canada goose, mallard, American black duck, ring-billed gull, northern flicker, hairy woodpecker, blue jay, black-capped chickadee, white-breasted nuthatch, American robin, house sparrow, northern cardinal. (14 species)

Some birds:

Mallards with “Bib” duck in centre
Mallard foot
Double-crested Cormorant
“Bib” duck (Mallard X Black Duck hybrid)
Great Egret
Mallards with “Bib” duck
Mallard (male)
Northern Flicker


At daybreak a blossom, 
    At noontime a rose, 
At twilight ’tis withered, 
    At evening ’tis closed.
The din of confusion, 
    The strain of the fife, 
These with other things 
    Make up life.                                             – Carrie Law Morgan Figgs (1878–1968)

Miles Hearn

2 thoughts on “Various Forms of Poison Ivy: September 13, 2021

  1. rosemarie fischer

    thanks for all the different colours,shapes and seeds about the poison ivy, wow,I had no idea,good to know,thanks Miles


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