Thornapple, Oak-leaf - Datura quercifolia

(Oak-leaf Thorn-apple, Chinese Thorn-apple)

Family: Nightshade - (Solanaceae) Native


On path incline near top of trail before #6 ((N35D33'10.007 X W105D41'23.952)

Flowers first observed: 8/16/17

Plant w/Flower

The Flower

The Fruit


"It grows in Mexico and the Southwestern United States, where it is a ground cover or an upright bush up to 3 ft. tall." (Wikipedia)

"USA:  AR ,  AZ ,  CA ,  GA ,  KS ,  LA ,  MD ,  NC ,  NM ,  OK ,  PA ,  SC ,  TX 
Native Habitat: Hillsides, dry plains, and disturbed fields." (

"Datura quercifolia is a plant of dry hillsides, plains, and disturbed areas. It has lobed leaves that mimic to some extent the look of the Gambel Oak leaf. The white flowers are similar to those of Datura wrightii when fresh, turning more purplish with age. The fruit are thorny. The two celled ovary develops into a four chambered capsule that opens from the top into the four chambers containing the black seeds. The seeds are shaped remarkably like a human brain complete with temporal lobe and sulci." (Western New Mexico University


" It produces green colored fruit with long sharp spikes or spines. The unremarkable light blue funnel-shaped flowers are less than 2 in. long. Except for its unusual leaves, Datura quercifolia does not have much ornamental value[1]." (Wikipedia)

Ethnobotanical Uses


"All parts of Datura plants contain dangerous levels of poison and may be fatal if ingested by humans or other animals, including livestock and pets. In some places it is prohibited to buy, sell or cultivate Datura plants.[1]" (Wikipedia)

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