Poisonous plants
There are many poisonous plant we should avoid some are listed with description.

Buttercup(Ranunculus Sceleratus). Erect annual or perennial; 2-3ft.leaves palmately divided into 5-7 stalkless, lance-shaped,toothed segments. Flowers shiny; golden yellow within, lighter outside. Warning: Extremely acrid. Causes intense pain and burning of mouth,mucous membranes,blister skin. Avoid use,similar warning applies to many other plants in the buttercup family.
Castor bean plant(ricinus communis)
Large annual or perennial (in south);5-12ft. Leaves large,palmate,with 5-11 lobes. Flowers in clusters, with female ones above and male ones below. July-sept. Seed capsule with soft spines. Warning: seeds are deadly poison. One seed may fatal to a child. after oil is squeezed from seeds. The deadly toxic protein,ricin, remains in seed cake, causing dermatitis.
Nightshade,black(solanum nigrum)
Perennial;1-2.5ft.leaves broad and triangular; irregular toothed, flowers white stars with protruding yellow stamens and petals curved back, fruits are blackberries. Warning: some varieties contain solanine and steriods. Deaths has been reported from use. In India,some varieties are eaten,but similar varieties may be violently toxic.
Horse chestnut(aesculus hippocastanum).
Tree to 100ft,leaflets 5-7; to 12 in. Long; without stalks, toothed. Buds large, very sticky. Flower white with bits of red and yellow. Fruits spiny or warty. Warning; outer husks poisonous; all parts can be toxic. Fatalities reported. Seeds contain 30-60% starch, but can be used as a foodstuff only after toxins have been removed.
Mistletoe, American(phoradendron Flauescans)
Parasitic, thick branched perennial; semi-evergreen. Leaves oblong to obovate; to 3 in long, flowers small, fruits tansculent white. Warning: often considerd poisonous. Unconfirmed reports of deaths have attributed to eatinv berries. May cause dermatitis.
Poson hemlock(conium macualatum) Branched perennial; 2-6ft. Stems hollow, grooved and purple-spotted, leaves are carrot like, but more triangular and with more divisions. Leaves are foul smelling when bruised, leafstalks are hairless, flowers white umbels. Warning: deadly poison. Ingestion can be lethal. Contact can cause dermatitis, juice in highly toxic.
Poison ivy(Toxicodendron radicans) variable, trailing,climbing vine or erect shrub. Leaves on long , glossy to hairy stalks; 3 variable leaflets, outer one has a longer stalk. Warning: Touching it can cause severe dermatitis. Internal consumption May cause serious effects. Smoke from burning plants, even when dried, can cause dermatitis.
Poison oak(Toxicodendron pubescenes) generally similar to poison ivy, but always erect. Leaflets varied, blunt tipped, obviously hairy on both sides. may be lobed like oak leaves,fruits usually hairy. The irritating effects of poison ivy.
Height to 10, some experts believe it is a species of poison ivy.
Pokeweed(phytolacca americana) coarse, large-rooted perennial 5-10 ft. Stem often red at base. Leaves large,toothless, and oval. Flowers greenish white, petal-like sepals: july-sept. Fruits purple-black, in drooping bunches. Warning: All parts are poisonous. Pokeweed plant juice can cause dermatitis. Even damage chromosomes.
Tobacco(Nicotiana tabacum) acrid,rank clammy, hairy, large annual; 3-9ft. Leaves lance shaped to oval. funnel flowers to 3 in Long; greenish to pink, 5-parted; aug-sept. Warning: addictive narcoti. Hazards of tubacco use are well-known. Source of toxic insecticidal alkloid, nicotine.
Virgina creeper(parthenocissus quinquefolia) climbing or creeping vine with adhesive disks on many-branched tendrills. Leaves divided into 5 leaflets; elliptical to oval, sharply toothed. Warning: berries reportedly toxic. Leaves toxic, touching autumn foliage may cause dermatitis.

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