Oak trees are poisonous

 

Family / taxonomy

 

Plant type / habitat

 

Phytotherapeutic use

 

Toxicology / Toxicity

 

distribution

Forest plant: forests; kollin (-montan); all of Switzerland; Europe.
 

description

Tree up to 50 m high.
Bark:young trees: smooth, blue-green, shiny, quickly cracking; older: dark gray to brownish gray, deeply furrowed.
Branches:boy: ± soon.
Leaves:above: deep green glossy, underside: lighter, waxy blue-green, glabrous or scattered hairy, but never with star hairs, with protruding leaf veins; with 5-7 mostly blunt sections that face each other asymmetrically, with small ears at the base, leathery, alternate, stem: mostly less than 7 mm.
Blossoms:male: in drooping ears; female: inconspicuous, 2-5 leaf angles, short stalked.
Flowering time:April May
Fruit:Ripe fruit (acorn) egg-shaped, smooth, partially enclosed by the fruit cup (cupula), stalks of fruit much longer than leaves.
Fruit ripeness:September October
 

Likelihood of confusion

Other Quercus-Species
 

Poisonous plant parts

Fruits (unripe> ripe), leaves, bark, buds; Oak wood dust falls under the "substances clearly identified as carcinogenic".
 

Other Quercus species

 

literature

Illustrations