Of the mustard family (Cruciferae), the yellow rocket of Barbarea vulgaris.

Yellow Rocket

Of the mustard family (Cruciferae), the yellow rocket of Barbarea vulgaris.

Of the mustard family (Cruciferae), the black mustard or Brassica nigra.

Black Mustard

Of the mustard family (Cruciferae), the black mustard or Brassica nigra.

Of the mustard family (Cruciferae): left, peppergrass (Lepidium Virginicum); right, shepherd's purse (Capsella Bursa-pastoris).

Pepper Grass and Shepherd's Purse

Of the mustard family (Cruciferae): left, peppergrass (Lepidium Virginicum); right, shepherd's purse…

Of the pitcher plant family (Sarraceniaceae), the trumpets or Sarracenia flava.

Trumpets

Of the pitcher plant family (Sarraceniaceae), the trumpets or Sarracenia flava.

Of the pitcher plant family (Sarraceniaceae), the pitcher plant or Sarracenia purpurea.

Pitcher Plant

Of the pitcher plant family (Sarraceniaceae), the pitcher plant or Sarracenia purpurea.

Of the sundew family (Droseraceae), the thread-leaved sundew or Drosera filiformis.

Thread-Leaved Sundew

Of the sundew family (Droseraceae), the thread-leaved sundew or Drosera filiformis.

Of the sundew family (Droseraceae), the long-leaved sundew or Drosera longifolia var. Americana.

Long-Leaved Sundew

Of the sundew family (Droseraceae), the long-leaved sundew or Drosera longifolia var. Americana.

Of the sundew family (Droseraceae), the round-leaved sundew or Drosera rotundifolia.

Round-Leaved Sundew

Of the sundew family (Droseraceae), the round-leaved sundew or Drosera rotundifolia.

Of the orpine family (Crassulaceae), the wild stonecrop or Sedum ternatum.

Wild Stonecrop

Of the orpine family (Crassulaceae), the wild stonecrop or Sedum ternatum.

Of the orpine family (Crassulaceae), the live-forever or garden orpine (Sedum purpureum).

Live-Forever or Garden Orpine

Of the orpine family (Crassulaceae), the live-forever or garden orpine (Sedum purpureum).

Of the orpine family (Crassulaceae), the ditch stonecrop or Penthorum sedoides.

Ditch Stonecrop

Of the orpine family (Crassulaceae), the ditch stonecrop or Penthorum sedoides.

Of the saxifrage family (Saxifragaceae), the early saxifrage or Saxifraga Virginiensis.

Early Saxifrage

Of the saxifrage family (Saxifragaceae), the early saxifrage or Saxifraga Virginiensis.

Of the saxifrage family (Saxifragaceae): left, false mitrewort (Tiarella cordifolia); right, naked mitrewort (Mitella nuda).

False Mitrewort and Naked Mitrewort

Of the saxifrage family (Saxifragaceae): left, false mitrewort (Tiarella cordifolia); right, naked mitrewort…

Of the saxifrage family (Saxifragaceae), the golden saxifrage or Chrysosplenium americanum.

Golden Saxifrage

Of the saxifrage family (Saxifragaceae), the golden saxifrage or Chrysosplenium americanum.

Of the saxifrage family (Saxifragaceae), the alumroot or Heuchera americana.

Alumroot

Of the saxifrage family (Saxifragaceae), the alumroot or Heuchera americana.

Of the saxifrage family (Saxifragaceae), the leaf of the alumroot or Heuchera americana.

Alumroot Leaf

Of the saxifrage family (Saxifragaceae), the leaf of the alumroot or Heuchera americana.

Of the saxifrage family (Saxifragaceae), the Grass of Parnassus or Parnassia caroliniana.

Grass of Parnassus

Of the saxifrage family (Saxifragaceae), the Grass of Parnassus or Parnassia caroliniana.

Of the rose family (Rosaceae), the meadowsweet or Spiraea latifolia.

Meadowsweet

Of the rose family (Rosaceae), the meadowsweet or Spiraea latifolia.

Of the rose family (Rosaceae), the hardhack or Spiraea tomentosa.

Hardhack

Of the rose family (Rosaceae), the hardhack or Spiraea tomentosa.

Of the rose family (Rosaceae): left, the queen-of-the-prairie or Filipendula rubra; right, goat's beard or Aruncus sylvester.

Queen-of-the-Prairie and Goat's Beard

Of the rose family (Rosaceae): left, the queen-of-the-prairie or Filipendula rubra; right, goat's beard…

Of the rose family (Rosaceae), Dalibarda repens.

D. Repens

Of the rose family (Rosaceae), Dalibarda repens.

Of the rose family (Rosaceae), the long-plumed avens or Geum triflorum.

Long-Plumed Avens

Of the rose family (Rosaceae), the long-plumed avens or Geum triflorum.

Of the rose family (Rosaceae), the Geum Peckii.

G. Peckii

Of the rose family (Rosaceae), the Geum Peckii.

Of the rose family (Rosaceae), the leaf of rough-fruited cinquefoil or Potentilla recta.

Rough-Fruited Cinquefoil

Of the rose family (Rosaceae), the leaf of rough-fruited cinquefoil or Potentilla recta.

Of the rose family (Rosaceae), the slivery cinquefoil or Potentilla argentea.

Silvery Cinquefoil

Of the rose family (Rosaceae), the slivery cinquefoil or Potentilla argentea.

Of the rose family (Rosaceae), the Norway cinquefoil or Potentilla monspeliensis var. norvegica.

Norway Cinquefoil

Of the rose family (Rosaceae), the Norway cinquefoil or Potentilla monspeliensis var. norvegica.

Of the rose family (Rosaceae), the purple cinquefoil or Potentilla palustris.

Purple Cinquefoil

Of the rose family (Rosaceae), the purple cinquefoil or Potentilla palustris.

Of the rose family (Rosaceae), the leaf of the shrubby cinquefoil or Potentilla fructosa.

Shrubby Cinquefoil Leaf

Of the rose family (Rosaceae), the leaf of the shrubby cinquefoil or Potentilla fructosa.

Of the rose family (Rosaceae), the leaf of Potentilla tridentata.

P. Tridentata

Of the rose family (Rosaceae), the leaf of Potentilla tridentata.

Of the rose family (Rosaceae): left, agrimony or Agrimonia gryposepala; right, cinquefoil or Potentilla canadensis var. simplex.

Agrimony and Cinquefoil

Of the rose family (Rosaceae): left, agrimony or Agrimonia gryposepala; right, cinquefoil or Potentilla…

Of the rose family (Rosaceae), the smooth rose or Rosa blanda.

Smooth Rose

Of the rose family (Rosaceae), the smooth rose or Rosa blanda.

Of the rose family (Rosaceae), the spines of Rosa lucida.

Rose Spines

Of the rose family (Rosaceae), the spines of Rosa lucida.

Of the rose family (Rosaceae), the sweetbrier or Rosa rubiginosa.

Sweetbrier

Of the rose family (Rosaceae), the sweetbrier or Rosa rubiginosa.

Of the pulse family (Leguminosae): left, blue false indigo (Baptisia australis); right, wild indigo (Baptisia tinctoria).

Blue False Indigo and Wild Indigo

Of the pulse family (Leguminosae): left, blue false indigo (Baptisia australis); right, wild indigo…

Of the pulse family (Leguminosae), the rabbit-foot clover or Trifolium arvense.

Rabbit-Foot Clover

Of the pulse family (Leguminosae), the rabbit-foot clover or Trifolium arvense.

Of the pulse family (Leguminosae), the hop clover or Trifolium agrarium.

Hop Clover

Of the pulse family (Leguminosae), the hop clover or Trifolium agrarium.

Of the pulse family (Leguminosae), the alsike clover or Trifolium hybridum.

Alsike Clover

Of the pulse family (Leguminosae), the alsike clover or Trifolium hybridum.

Of the pulse family (Leguminosae), the alfalfa or Medicago sativa.

Alfalfa

Of the pulse family (Leguminosae), the alfalfa or Medicago sativa.

Of the pulse family (Leguminosae), the yellow melilot or Melilotus officinalis.

Yellow Melilot

Of the pulse family (Leguminosae), the yellow melilot or Melilotus officinalis.

Of the pulse family (Leguminosae), the milk vetch or Astragalus canadensis.

Milk Vetch

Of the pulse family (Leguminosae), the milk vetch or Astragalus canadensis.

Of the pulse family (Leguminosae), the tick trefoil or Desmodium nudiflorum.

Tick Trefoil

Of the pulse family (Leguminosae), the tick trefoil or Desmodium nudiflorum.

Of the pulse family (Leguminosae), the leaf and seed pod of Desmodium paniculatum.

D. Paniculatum

Of the pulse family (Leguminosae), the leaf and seed pod of Desmodium paniculatum.

Of the pulse family (Leguminosae), the leaf and seed pod of Desmodium Dellenii.

D. Deillenii

Of the pulse family (Leguminosae), the leaf and seed pod of Desmodium Dellenii.

Of the pulse family (Leguminosae), the seed pod of Desmodium grandiflorum.

D. Grandiflorum

Of the pulse family (Leguminosae), the seed pod of Desmodium grandiflorum.

Of the pulse family (Leguminosae), the leaf of the nonesuch or black medick (Medicago lupulina).

Nonesuch or Black Medick

Of the pulse family (Leguminosae), the leaf of the nonesuch or black medick (Medicago lupulina).

Of the pulse family (Leguminosae), the Canadian tick trefoil or Desmodium Canadense.

Canadian Tick Trefoil

Of the pulse family (Leguminosae), the Canadian tick trefoil or Desmodium Canadense.

Of the pulse family (Leguminosae), the leaf of the trailing bush clover or Lespedeza procumbens.

Trailing Bush Clover

Of the pulse family (Leguminosae), the leaf of the trailing bush clover or Lespedeza procumbens.

Of the pulse family (Leguminosae), the leaf of Lespedeza hirta.

L. Hirta

Of the pulse family (Leguminosae), the leaf of Lespedeza hirta.

Of the pulse family (Leguminosae), the leaf of Vicia americana.

V. Americana

Of the pulse family (Leguminosae), the leaf of Vicia americana.

Of the pulse family (Leguminosae), the leaf of the common vetch or Vicia sativa.

Common Vetch

Of the pulse family (Leguminosae), the leaf of the common vetch or Vicia sativa.

Of the pulse family (Leguminosae), the bush clover, Lespedeza violacea.

Bush Clover

Of the pulse family (Leguminosae), the bush clover, Lespedeza violacea.

Of the pulse family (Leguminosae), Lespedeza virginica.

L. Virginica

Of the pulse family (Leguminosae), Lespedeza virginica.

Of the pulse family (Leguminosae), the cow vetch or Vicia Cracca.

Cow Vetch

Of the pulse family (Leguminosae), the cow vetch or Vicia Cracca.

Of the pulse family (Leguminosae), the ground nut or Apios tuberosa.

Ground Nut

Of the pulse family (Leguminosae), the ground nut or Apios tuberosa.

Of the pulse family (Leguminosae): left, hog peanut (Amphicarpaea monoica); right, wild bean (Phaseolus polystachyus).

Hog Peanut and Wild Bean

Of the pulse family (Leguminosae): left, hog peanut (Amphicarpaea monoica); right, wild bean (Phaseolus…

Of the pulse family (Leguminosae), the flower of the beach pea or Lathyrus maritimus.

Beach Pea Flower

Of the pulse family (Leguminosae), the flower of the beach pea or Lathyrus maritimus.

Of the pulse family (Leguminosae), the leaves of the beach pea or Lathyrus maritimus.

Beach Pea Leaves

Of the pulse family (Leguminosae), the leaves of the beach pea or Lathyrus maritimus.

Of the pulse family (Leguminosae): large image, the partridge pea with pods (Cassia Chamaecrista); leaves on left side, Strophostyles helvola.

Partridge Pea

Of the pulse family (Leguminosae): large image, the partridge pea with pods (Cassia Chamaecrista); leaves…

Of the geranium family (Geraniaceae): left, the herb Robert (Geranium Robertianum); right, Geranium Bicknelli.

Geranium Bicknelli and Herb Robert

Of the geranium family (Geraniaceae): left, the herb Robert (Geranium Robertianum); right, Geranium…

Of the geranium family (Geraniaceae): left, cranesbill (Geranium maculatum); right, Geranium Carolinianum.

Geranium Carolinianum and Cranesbill

Of the geranium family (Geraniaceae): left, cranesbill (Geranium maculatum); right, Geranium Carolinianum.