dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Asteridae, subclass Asteridae - a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder

genus Achillea - perennial often aromatic and sometimes mat-forming herbs of north temperate regions: yarrow; milfoil

Acroclinium, genus Acroclinium - genus of herbs and shrubs of Australia and South Africa: everlasting flower; most species usually placed in genus Helipterum

Ageratina, genus Ageratina - annual to perennial herbs or shrubs of eastern United States and Central and South America

genus Ageratum - genus of tropical American herbs grown for their flowers

Amberboa, genus Amberboa - herbs of Mediterranean to central Asia cultivated for their flowers

genus Ambrosia - comprising the ragweeds; in some classification considered the type genus of a separate family Ambrosiaceae

genus Ammobium - small genus of Australian herbs grown for their flowers

Anacyclus, genus Anacyclus - Spanish pellitory

Anaphalis, genus Anaphalis - genus of herbs of north temperate regions having hoary leaves: pearly everlasting

genus Andryala - genus of hardy hairy latex-producing perennials of Mediterranean area

Antennaria, genus Antennaria - small woolly perennial herbs having small whitish discoid flowers surrounded by a ring of club-shaped bristles

Anthemis, genus Anthemis - dog fennel

Antheropeas, genus Antheropeas - small genus of North American herbs often included in genus Eriophyllum

Arctium, genus Arctium - burdock

Arctotis, genus Arctotis - herbs and subshrubs: African daisy

Argyranthemum, genus Argyranthemum - comprises plants often included in the genus Chrysanthemum

Argyroxiphium, genus Argyroxiphium - small genus of Hawaiian spreading and rosette-forming shrubs

genus Arnica - large genus of herbs of north temperate and arctic regions

Arnoseris, genus Arnoseris - lamb succory

genus Artemisia - usually aromatic shrubs or herbs of north temperate regions and South Africa and western South America: wormwood; sagebrush; mugwort; tarragon

genus Aster - large genus of herbs widely cultivated for their daisylike flowers

Baccharis, genus Baccharis - shrubs of western hemisphere often having honey-scented flowers followed by silky thistlelike heads of tiny fruits; often used for erosion control

Balsamorhiza, genus Balsamorhiza - genus of coarse western American herbs with large roots containing an aromatic balsam

Bellis, genus Bellis - daisy

Bidens, genus Bidens - bur marigolds

Boltonia, genus Boltonia - genus of tall leafy perennial herbs of eastern America and eastern Asia having flowers that resemble asters

Brachycome, genus Brachycome - mostly Australian herbs having basal or alternate leaves and loosely corymbose flower heads

Brickellia, genus Brickelia - genus of herbs of southwestern America having usually creamy florets followed by one-seeded fruits in a prominent bristly sheath

Buphthalmum, genus Buphthalmum - oxeye

Cacalia, genus Cacalia - genus of tall smooth herbs of forested mountains of Europe and Asia minor; in some classifications includes many plants usually placed in genus Emilia

genus Calendula - marigold

Callistephus, genus Callistephus - 1 species: erect Asiatic herb with large flowers

Carduus, genus Carduus - genus of annual or perennial Old World prickly thistles

Carlina, genus Carlina - genus of Mediterranean thistles

Carthamus, genus Carthamus - safflower