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The Winter Aconite (Eranthis hyemalis) is a European plant in the Ranunculaceae family of buttercups.

Winter Aconite

The Winter Aconite (Eranthis hyemalis) is a European plant in the Ranunculaceae family of buttercups.

Akene of Anemone, enlarged,(Gray, 1858).

Anemone Akene

Akene of Anemone, enlarged,(Gray, 1858).

Akene of Anemone, enlarged, cut in half to show the seed in it, (Gray, 1858).

Anemone Akene

Akene of Anemone, enlarged, cut in half to show the seed in it, (Gray, 1858).

"A genus of plants of the natural order Ranunculaceae, having an involucre of three divided leaves, more or less remote from the flower, a petaloid calyx, searcely distinguishable from the corolla, and soft woolly achenia, which in some species have tails." — Chambers' Encyclopedia, 1875

Anemone Coronaria

"A genus of plants of the natural order Ranunculaceae, having an involucre of three divided leaves,…

"Ceratocephalus orthoceras. 1. flower; 2. ripe fruit." -Lindley, 1853

Buttercup

"Ceratocephalus orthoceras. 1. flower; 2. ripe fruit." -Lindley, 1853

Ranunculus bulbosus or the bulbous buttercup is a perennial weed of the Buttercup family, Ranunculaceae.

Bulbous Buttercup

Ranunculus bulbosus or the bulbous buttercup is a perennial weed of the Buttercup family, Ranunculaceae.

Of the crowfoot family (Ranunculaceae), the bristly crowfoot or Ranunculus Pennsylvanicus.

Bristly Crowfoot

Of the crowfoot family (Ranunculaceae), the bristly crowfoot or Ranunculus Pennsylvanicus.

Of the crowfoot family (Ranunculaceae), the leaf and flower (showing reflexed sepals) of the bulbous buttercup or Ranunculus bulbosus.

Bulbous Buttercup

Of the crowfoot family (Ranunculaceae), the leaf and flower (showing reflexed sepals) of the bulbous…

Of the crowfoot family (Ranunculaceae), the Canadian Anemone or Anemone Canadensis.

Canadian Anemone

Of the crowfoot family (Ranunculaceae), the Canadian Anemone or Anemone Canadensis.

Of the crowfoot family (Ranunculaceae), the columbine or Aquilegia Canadensis.

Columbine

Of the crowfoot family (Ranunculaceae), the columbine or Aquilegia Canadensis.

Of the crowfoot family (Ranunculaceae): left, goldthread (Coptis trifolia); right, monkshood (Aconitum uncinatum).

Goldthread and Monkshood

Of the crowfoot family (Ranunculaceae): left, goldthread (Coptis trifolia); right, monkshood (Aconitum…

Of the crowfoot family (Ranunculaceae), the leather flower or Clematis Viorna.

Leather Flower

Of the crowfoot family (Ranunculaceae), the leather flower or Clematis Viorna.

Of the crowfoot family (Ranunculaceae), the pasque flower or Anemone patens var. Wolfgangiana.

Pasque Flower

Of the crowfoot family (Ranunculaceae), the pasque flower or Anemone patens var. Wolfgangiana.

Of the crowfoot family (Ranunculaceae), Ranunculus acris var. Steveni.

R. Acris var. Stevni

Of the crowfoot family (Ranunculaceae), Ranunculus acris var. Steveni.

Of the crowfoot family (Ranunculaceae): large image: the red baneberry or Actaea rubra; bottom right: fruit of the white baneberry or Actaea alba.

Red Baneberry

Of the crowfoot family (Ranunculaceae): large image: the red baneberry or Actaea rubra; bottom right:…

Of the crowfoot family (Ranunculaceae), the flower of the red baneberry or Actaea rubra.

Red Baneberry Flower

Of the crowfoot family (Ranunculaceae), the flower of the red baneberry or Actaea rubra.

Of the crowfoot family (Ranunculaceae), the swamp buttercup or Ranunculus septentrionalis. The smaller image is of the leaf of the early buttercup or Ranunculus fascicularis.

Swamp Buttercup

Of the crowfoot family (Ranunculaceae), the swamp buttercup or Ranunculus septentrionalis. The smaller…

Of the crowfoot family (Ranunculaceae), the tall buttercup or Ranunculus acris.

Tall Buttercup

Of the crowfoot family (Ranunculaceae), the tall buttercup or Ranunculus acris.

Of the crowfoot family (Ranunculaceae), the tall meadow rue or Thalictrum polygamum.

Tall Meadow Rue

Of the crowfoot family (Ranunculaceae), the tall meadow rue or Thalictrum polygamum.

Of the crowfoot family (Ranunculaceae): left, thimble-weed (Anemone Virginiana); right, large white-flowered anemone (Anemone riparia).

Thimble-Weed and Large White-Flowered Anemone

Of the crowfoot family (Ranunculaceae): left, thimble-weed (Anemone Virginiana); right, large white-flowered…

Of the crowfoot family (Ranunculaceae): left, the water plantain spearwort (Ranunculus laxicaulis); right, small-flowered crowfoot (Ranunculus abortivus var. eucyclus).

Water Plantain and Small-Flowered Crowfoot

Of the crowfoot family (Ranunculaceae): left, the water plantain spearwort (Ranunculus laxicaulis);…

Of the crowfoot family (Ranunculaceae), the flower of the white baneberry or Actaea alba.

White Baneberry

Of the crowfoot family (Ranunculaceae), the flower of the white baneberry or Actaea alba.

Of the crowfoot family (Ranunculaceae): top, wood anemone (Anemone quinquefolia); middle, rue anemone (Anemonella thalictrroides); bottom, liverwort (Hepatica triloba).

Wood Anemone, Rue Anemone, and Liverwort

Of the crowfoot family (Ranunculaceae): top, wood anemone (Anemone quinquefolia); middle, rue anemone…

The plant and fruit of the False Rue Anemone (Isopyrum biternatum). It is a flowering plant in the Ranunculaceae family of buttercups.

False Rue Anemone

The plant and fruit of the False Rue Anemone (Isopyrum biternatum). It is a flowering plant in the Ranunculaceae…

Flower of Anemone,(Gray, 1858).

Anemone Flower

Flower of Anemone,(Gray, 1858).

Flower of Anemone, cut in half, (Gray, 1858).

Anemone Flower

Flower of Anemone, cut in half, (Gray, 1858).

"Globe-flower (Trollius Europaeus). The Trollius Europaeus, a ranunculaceous plant of Great Britain and the mountains of central Europe, with deeply lobed leaves and pale-yellow flowers." -Whitney, 1911

Globe Flower

"Globe-flower (Trollius Europaeus). The Trollius Europaeus, a ranunculaceous plant of Great Britain…

Flower of Larkspur, (Gray, 1858).

Larkspur

Flower of Larkspur, (Gray, 1858).

Four petals of Larkspur, (Gray, 1858).

Larkspur

Four petals of Larkspur, (Gray, 1858).

Pistil of Anemone, cut in half, showing the ovary and ovule,(Gray, 1858).

Anemone Pistil

Pistil of Anemone, cut in half, showing the ovary and ovule,(Gray, 1858).

A separate pod of the Wild Columbine, (Gray, 1858).

Pod

A separate pod of the Wild Columbine, (Gray, 1858).

"Ranunculus, buttercup, crowfoot; the typical genus of the order Ranunculaceæ. Known species about 160, from temperate regions. Many have much divided leaves."—(Charles Leonard-Stuart, 1911)

Ranunculus

"Ranunculus, buttercup, crowfoot; the typical genus of the order Ranunculaceæ. Known species about…

Flower of Wolfsbane, or Monkshood, (Gray, 1858).

Wolfsbane

Flower of Wolfsbane, or Monkshood, (Gray, 1858).