darling pea, poison bush - either of two Australian plants of the genus Swainsona that are poisonous to sheep

Amsonia tabernaemontana, blue star - subshrubs of southeastern United States forming slow-growing clumps and having blue flowers in short terminal cymes

periwinkle - chiefly trailing poisonous plants with blue flowers

Aralia nudicaulis, false sarsaparilla, wild sarsaparilla, wild sarsparilla - common perennial herb having aromatic roots used as a substitute for sarsaparilla; central and eastern North America

American spikenard, Aralia racemosa, life-of-man, petty morel - unarmed woody rhizomatous perennial plant distinguished from wild sarsaparilla by more aromatic roots and panicled umbels; southeastern North America to Mexico

Aralia hispida, bristly sarsaparilla, bristly sarsparilla, dwarf elder - bristly herb of eastern and central North America having black fruit and medicinal bark

bloodleaf - any plant of the genus Iresine having colored foliage

Cleome pinnata, desert plume, Stanleya pinnata, prince's-plume - perennial of southwestern United States having leathery blue-green pinnatifid leaves and thick plumelike spikes of yellow flowers; sometimes placed in genus Cleome

California tree poppy, matilija poppy, Romneya coulteri - tall branching subshrub of California and Mexico often cultivated for its silvery-blue foliage and large fragrant white flowers

burdock, clotbur - any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs

Argyranthemum frutescens, Chrysanthemum frutescens, marguerite daisy, Paris daisy, marguerite - perennial subshrub of the Canary Islands having usually pale yellow daisylike flowers; often included in genus Chrysanthemum

wormwood - any of several low composite herbs of the genera Artemisia or Seriphidium

sage brush, sagebrush - any of several North American composite subshrubs of the genera Artemis or Seriphidium

beggar's-ticks, bur marigold, burr marigold, sticktight, beggar-ticks - any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing

centaury - any plant of the genus Centaurea

matchbush, matchweed - any of several plants of the genus Gutierrezia having tiny flower heads that resemble the heads of matches

guayule, Parthenium argentatum - much-branched subshrub with silvery leaves and small white flowers of Texas and northern Mexico; cultivated as a source of rubber

American feverfew, Parthenium integrifolium, prairie dock, wild quinine - stout perennial herb of the eastern United States with whitish flowers; leaves traditionally used by Catawba indians to treat burns

bastard pimpernel, chaffweed, false pimpernel - weedy plant having short dry chafflike leaves

thrift - any of numerous sun-loving low-growing evergreens of the genus Armeria having round heads of pink or white flowers

marsh rosemary, sea lavender, statice - any of various plants of the genus Limonium of temperate salt marshes having spikes of whit or mauve flowers

corchorus - any of various plants of the genus Corchorus having large leaves and cymose clusters of yellow flowers; a source of jute

diapensia - any boreal low-growing evergreen plant of the genus Diapensia

loosestrife - any of numerous herbs and subshrubs of the genus Lythrum

deer grass, meadow beauty - any of several plants of the genus Rhexia usually having pink-purple to magenta flowers; eastern North America

St John's wort - any of numerous plants of the genus Hypericum having yellow flowers and transparently dotted leaves; traditionally gathered on St John's eve to ward off evil

false heather, golden heather, Hudsonia ericoides - North American decumbent evergreen heathlike plant with yellow flowers

beach heather, Hudsonia tomentosa, poverty grass - small heathlike plant covered with white down growing on beaches in northeastern North America