This is the staminate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

Black Ash Flower

This is the staminate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

This is the pistillate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

Black Ash Flower

This is the pistillate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

This is the fruit, or samara, of Black Ash, Fraxinus nigra, (Keeler, 1915).

Black Ash Fruit

This is the fruit, or samara, of Black Ash, Fraxinus nigra, (Keeler, 1915).

This is the flower of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

Blue Ash Flower

This is the flower of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

This is the fruit, or samara, of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

Blue Ash Fruit

This is the fruit, or samara, of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

"A genus of trees belonging to the natural order Oleaceae, and distinguished by very imperfect flowers, in which the calyx is obsolete, and the corolla either wanting or 3-4 partite; the fruit is a samara, a seed-vessel foliaceous at the extremity." — Chambers' Encyclopedia, 1875

Common Ash

"A genus of trees belonging to the natural order Oleaceae, and distinguished by very imperfect flowers,…

"Common Ash. a, a branch with leaves; b, flowers; c, fruit (on a considerably larger scale than the leaves and flowers)." — Chambers' Encyclopedia, 1875

Common Ash

"Common Ash. a, a branch with leaves; b, flowers; c, fruit (on a considerably larger scale than the…

Eucalyptus is dominate in Australia but also found in adjacent parts of New Guinea and Indonesia. Many are known as gum trees.

Eucalyptus

Eucalyptus is dominate in Australia but also found in adjacent parts of New Guinea and Indonesia. Many…

A key or key-fruit (called by Botanists a Samara) is like an akene or nut, only it is winged.

Key

A key or key-fruit (called by Botanists a Samara) is like an akene or nut, only it is winged.

This is the staminate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

Red Ash Flower

This is the staminate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

This is the pistillate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

Red Ash Flower

This is the pistillate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

This is the fruit, or samara, of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

Red Ash Fruit

This is the fruit, or samara, of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

This is the staminate flower of White Ash, Fraxinus americana, (Keeler, 1915).

White Ash Flower

This is the staminate flower of White Ash, Fraxinus americana, (Keeler, 1915).

This is the pistillate flower of White Ash, Fraxinus americana, (Keeler, 1915).

White Ash Flower

This is the pistillate flower of White Ash, Fraxinus americana, (Keeler, 1915).

This is the fruit, or samara, of White Ash, Fraxinus americana, (Keeler, 1915).

White Ash Fruit

This is the fruit, or samara, of White Ash, Fraxinus americana, (Keeler, 1915).