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Nicotiana glauca is a species of flowering plant in the tobacco genus Nicotiana of the nightshade family Solanaceae. It is known by the common name tree tobacco.Its leaves are attached to the stalk by petioles (many other Nicotiana species have sessile leaves), and its leaves and stems are neither pubescent nor sticky like Nicotiana tabacum.
The leaves can be used to make a flavored drink that is similar in taste to lemonade, [5] and the whole plant can be brewed as herbal tea that has an aroma somewhat like that of cooked green beans. The juices of the plant have been extracted from its greens as a substitute to common vinegar. Oxalis stricta contains large amounts of vitamin C.
The catalpa tree is the last tree to grow leaves in the spring. [citation needed] The winter twigs of northern catalpa are like those of few other trees, having sunken leaf scars that resemble suction cups. Their whorled arrangement (three scars per node) around the twigs is another diagnostic.
Mitragyna speciosa is a tropical evergreen tree of the Rubiaceae family (coffee family) native to Southeast Asia. [3] It is indigenous to Cambodia, Thailand, Indonesia, Malaysia, Myanmar, and Papua New Guinea, [4] where its leaves, known as "kratom" have been used in herbal medicine since at least the 19th century. [5]
A rain tree leaf is pinnate made of 6–16 leaflets, each leaflet is shaped like a diamond 2–4 centimetres (0.79–1.57 in) long and 1–2 centimetres (0.39–0.79 in) wide with a dull top surface and finely hairy beneath. The tree sheds its leaves for a while during dry periods. [6]
Aralia spinosa is an aromatic, spiny deciduous shrub or small tree growing 2–8 m (7–26 ft) tall. It has a simple or, occasionally, branched stem with very large bipinnate leaves 70–120 cm (30–45 in) long. The trunks are up to 15–20 cm (6–8 in) in diameter, with the plants umbrella-like canopy in habit with open crowns.
The plant's flowers are yellow and grow up to an inch in diameter, with five petals attached at the base. Flowers grow on stalks and can either be found in clusters or individually where the stalk meets the leaf stem. [4] Pod-like capsules produced by the plant consist of 12-15 wood segments that form cup-like rings.
It grows as a spreading tree up to 20 m (70 ft) tall, with its trunk covered by a white, beige and grey thick papery bark. The grey-green leaves are egg-shaped, and cream or white bottlebrush-like flowers appear from late spring to autumn. It was first formally described in 1797 by the Spanish naturalist Antonio José Cavanilles.