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Apocynum cannabinum grows up to 1 m (3 ft 3 in) tall. The stems are reddish and contain a milky latex.The leaves are opposite, simple, broad, and lanceolate, 7–15 cm (2 + 3 ⁄ 4 –6 in) long and 3–5 cm (1 + 1 ⁄ 4 –2 in) broad, entire, and smooth on top with white hairs on the underside.
Datura stramonium, known by the common names thornapple, jimsonweed (jimson weed), or devil's trumpet, [2] is a poisonous flowering plant in the Daturae tribe of the nightshade family Solanaceae. [3] Its likely origin was in Central America , [ 2 ] [ 4 ] and it has been introduced in many world regions.
Salvia divinorum, a dissociative hallucinogenic sage. This is a list of plant species that, when consumed by humans, are known or suspected to produce psychoactive effects: changes in nervous system function that alter perception, mood, consciousness, cognition or behavior.
Cannabis (/ ˈ k æ n ə b ɪ s / ⓘ) [2] is a genus of flowering plants in the family Cannabaceae that is widely accepted as being indigenous to and originating from the continent of Asia. [3] [4] [5] However, the number of species is disputed, with as many as three species being recognized: Cannabis sativa, C. indica, and C. ruderalis.
Betel nut chewing, also called betel quid chewing or areca nut chewing, is a practice in which areca nuts (also called "betel nuts") are chewed together with slaked lime and betel leaves for their stimulant and narcotic effects, the primary psychoactive compound being arecoline.
The BBCH-scale (weed) identifies the phenological development stages of weed species. It is a plant species specific version of the BBCH-scale. D = Dicotyledons G = Gramineae M = Monocotyledons P = Perennial plants V = Development from vegetative parts or propagated organs
It is a trailing herbaceous annual vine with barbed stems and triangular leaves. It is native to most of temperate and tropical eastern Asia, occurring from eastern Russia and Japan in the north, and the range extending to the Philippines and India in the south. [5] [6] P. perfoliata is an aggressive, highly invasive weed. [3]
The round stems are glabrous (smooth) and succulent, [7] and semi-translucent, with swollen or darkened nodes on some plants. The leaves, which measure up to 13 cm (5 in) long and 6 cm ( 2 + 1 ⁄ 2 in) across, are alternate on the upper stems and opposite on the lower stems (when present).