- Common name(s): Smallflower False Foxglove
- Attracted butterflies: Baltimore checkerspots
- Bloom colors: White, red, pink, yellow
- Bloom time: July-October
- Plant size: Up to about 2 feet tall
- Native states: Iowa, Illinois, Indiana, Maine, Michigan, Minnesota, New Hampshire, New York, Ohio, Pennsylvania, Vermont, Wisconsin

- Common name(s): Smallflower False Foxglove
- Attracted butterflies: Baltimore checkerspots
- Bloom colors: White, red, pink, yellow
- Bloom time: July-September
- Plant size: Up to about 2 feet tall
- Native states: Connecticut, Iowa, Illinois, Indiana, Massachusetts, Maine, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Virginia, Vermont, Wisconsin

- Common name(s): Roughfruit Amaranth, Water Hemp
- Attracted butterflies: Common checkered-skipper
- Bloom colors: White, pink, green
- Bloom time: June-November
- Plant size: Up to about 6 feet tall, occasionally taller
- Native states: Alabama, Arkansas, Connecticut, Georgia, Iowa, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Hampshire, New York, Ohio, Pennsylvania, South Dakota, Tennessee, Vermont, Wisconsin, West Virginia

- Common name(s): Great Ragweed, Giant Ragweed
- Attracted butterflies: Bordered patch
- Bloom colors: Green, brown
- Bloom time: June-October
- Plant size: Up to about 12 feet tall, often shorter
- Native habitat: Waste places, fields, and roadsides.
- Native states: Alabama, Arkansas, Arizona, California, Colorado, Connecticut, Washington D.C., Delaware, Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): American Hogpeanut
- Attracted butterflies: Silver-spotted skipper, northern cloudywing
- Bloom colors: White, pink, purple
- Bloom time: August-September
- Plant size: Stems twining, up to about 5 feet long
- Native habitat: Woodlands
- Native states: Alabama, Arkansas, Connecticut, Washington D.C., Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia

- Common name(s): Tower Rockcress
- Attracted butterflies: Large marble
- Bloom colors: White
- Bloom time: March-July
- Plant size: Up to about 5 feet tall, often shorter
- Native states: Alaska, Arizona, California, Colorado, Connecticut, Delaware, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): Common Beggarticks, Shepherd's Needles, Spanish Needles, Butterfly Needles, Hairy Beggarticks, Romerillo
- Attracted butterflies: Florida duskywing
- Bloom colors: White, yellow
- Bloom time: January-December
- Plant size: Up to about 8 feet tall, often much shorter
- Native states: Alabama, Connecticut, Florida, Georgia, Hawaii, Louisiana, Missouri, Pennsylvania

- Common name(s): Plains Evening-primrose
- Attracted butterflies: Kern primrose sphinx
- Bloom colors: Red, yellow
- Bloom time: March-July
- Plant size: Up to about 20 inches tall
- Native states: California, Idaho, Nevada, Oregon, Washington

- Common name(s): Lambsquarters
- Attracted butterflies: Common sootywing, western pygmy-blue
- Bloom colors: Green, brown
- Bloom time: June-October
- Plant size: Stems erect to sprawling, up to about 10 feet long
- Native habitat: Cultivated land, disturbed sites, and roadsides.
- Native states: Alabama, Arkansas, Arizona, California, Colorado, Connecticut, Washington D.C., Delaware, Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): Bristle Thistle, Yellow Thistle, Horrid Thistle, Purple Thistle, Spiny Thistle, Bull Thistle
- Attracted butterflies: Little metalmark
- Bloom colors: White, red, pink, yellow, purple
- Bloom time: May-August
- Plant size: Up to about 8 feet tall, often much shorter
- Native habitat: Shores, marshes, sandy or peaty fields.
- Native states: Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Louisiana, Massachusetts, Maryland, Maine, Mississippi, North Carolina, New Hampshire, New Jersey, Nevada, New York, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia

- Common name(s): Hogwort, Texas Goatweed
- Attracted butterflies: Goatweed leafwing
- Bloom colors: White
- Bloom time: July-September
- Native states: Alabama, Arkansas, Washington D.C., Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Missouri, Mississippi, North Carolina, Nebraska, New Jersey, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Virginia, Wisconsin, West Virginia

- Common name(s): Abert's Buckwheat, Abert's Wild Buckwheat
- Attracted butterflies: Crescent metalmark
- Bloom colors: White, pink, yellow
- Bloom time: January-December
- Plant size: Up to about 28 inches tall
- Native states: Arizona, Kansas, New Mexico, Texas

- Common name(s): Silverleaf Sunflower
- Attracted butterflies: Bordered patch and silvery checkerspot
- Bloom colors: Yellow
- Bloom time: August-November
- Plant size: 3 to 10 feet tall
- Native states: Florida, North Carolina, Texas

- Common name(s): Texas Bluebonnet, Bluebonnet, Texas Lupine, Buffalo Clover, Wolf Flower
- Attracted butterflies: Hairstreak butterfly, elfin butterfly
- Bloom colors: White, blue
- Bloom time: March-May
- Plant size: Up to 60 cm tall
- Native habitat: Prairies; open fields; roadsides
- Native states: Florida, Louisiana, Oklahoma, Texas

- Common name(s): Rocky Mountain Bee-plant, Stinking-clover, Bee Spiderflower, Navajo Spinach, Pink Cleome, Toothed Spiderflower, Skunkweed
- Attracted butterflies: Checkered white
- Bloom colors: White, purple
- Bloom time: May-September
- Plant size: Usually to about 32 in height Can reach 6 feet in height
- Native habitat: Shortgrass and mixed grass prairies, pastures, pinyon pine and juniper woodland, desert scrub, roadsides, stabilized sand dunes
- Native states: Arizona, California, Colorado, Iowa, Idaho, Illinois, Indiana, Kansas, Massachusetts, Michigan, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Mexico, Nevada, Ohio, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming

- Common name(s): Blunt-leaf Rabbit-tobacco, Rabbit Tobacco, Sweet Everlasting, Fragrant Cudweed
- Attracted butterflies: American lady
- Bloom colors: White
- Bloom time: August-October
- Plant size: Up to about 3 feet tall
- Native habitat: Dry clearings; woodland edges; fields
- Native states: Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia

- Common name(s): Black-eyed Susan, Common Black-eyed Susan, Brown-eyed Susan, Blackeyed Susan
- Attracted butterflies: Bordered patch
- Bloom colors: Red, orange, yellow
- Bloom time: March-November
- Plant size: Up to about 3 feet tall
- Native habitat: Prairie, Plains, Meadows, Pastures, Savannas, Woodlands' edge, Opening
- Native states: Alabama, Arkansas, California, Colorado, Connecticut, Washington D.C., Delaware, Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): Black-eyed Susan, Blackeyed Susan, Brown-eyed Susan, Pinewoods Coneflower
- Attracted butterflies: Silvery checkerspot
- Bloom colors: Red, orange, yellow
- Bloom time: March-November
- Plant size: Up to about 3 feet tall
- Native habitat: Prairie/Meadow/Field
- Native states: Alabama, Arkansas, California, Colorado, Connecticut, Washington D.C., Delaware, Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): Cuban Jute, Axocatzin
- Attracted butterflies: Tropical checkered-skipper
- Bloom colors: Yellow
- Bloom time: January-December
- Plant size: Up to about 3 feet tall
- Native states: Alabama, Arkansas, Arizona, California, Florida, Georgia, Hawaii, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, New Jersey, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia

- Common name(s): Hoary Verbena, Hoary Vervain, Tall Vervain, Woolly Verbena
- Attracted butterflies: Common buckeye
- Bloom colors: Blue, purple
- Bloom time: June-September
- Plant size: Up to about 6 feet tall
- Native habitat: Fields; prairies
- Native states: Alabama, Arkansas, Arizona, Colorado, Connecticut, Delaware, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Kentucky, Massachusetts, Michigan, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Jersey, New Mexico, Nevada, New York, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): Northern Bog Violet, Wanderer Violet, Entire-leaved Prairie Violet, Small Mottled Blue Violet
- Attracted butterflies: Nokomis fritillary
- Bloom colors: White, purple, violet
- Bloom time: January-September
- Plant size: Up to about 6 inches tall
- Native states: Arkansas, Arizona, California, Colorado, Connecticut, Iowa, Idaho, Illinois, Indiana, Kansas, Louisiana, Massachusetts, Maine, Michigan, Minnesota, Montana, North Dakota, Nebraska, New Hampshire, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Utah, Vermont, Washington, Wisconsin, West Virginia, Wyoming

- Common name(s): Annual Wildrice, Wild Rice
- Attracted butterflies: Broad-winged skipper
- Bloom colors: Green
- Bloom time: June-August
- Plant size: Stems up to about 15 feet tall, often much shorter Usually emergent
- Native habitat: Marshes, ponds, lakes, borders of sluggish rivers.
- Native states: Alabama, Connecticut, Washington D.C., Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Texas, Virginia, Vermont, Wisconsin

Data reporting by Elena Cox. Story editing by Jeff Inglis. Copy editing by Paris Close. Photo selection by Lacy Kerrick.