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Nicotiana glauca is a small tree or shrub with many branches that normally grows to over 2 m, but can reach as high as 7 m. Its leaves are thick and rubbery and can be up to 20 cm long. It has yellow tubular flowers about 5 cm long and 1 cm wide. The plant primarily reproduces by seed. [2]
The trees grow to a height of 15–25 m (49–82 ft). The characteristic bark is smooth, powdery and greenish yellow, although new twigs are purple, flaking later to reveal the characteristic yellow. [4] It is one of the few trees where photosynthesis takes place in the bark. Straight, white spines grow from the branch nodes in pairs. The ...
The leaves come out of the bud folded in half, yellow green, covered with silvery down which soon disappears. Each leaflet initially has a minute stipel, which quickly falls, and is connected to the by a short stem or petiolule. The leaves are attached to the branch with slender hairy petioles which are grooved and swollen at the base. The ...
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]
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.
Tradescantia fluminensis is a perennial groundcover that spreads along the ground with soft, hairless stems and leaves. The fleshy stems root at any node that is on the surface. The plant has oval, dark-green leaves with pointed tips that are shiny, smooth and slightly fleshy about 1.25–2.5 inches (32–64 mm) long.
This tree has a coarse texture and leaves that are dark that attract attention as a specimen plant. [25] This tree is not a good fit for small areas and needs to be put in a large open area in order to form due to its size. Aesculus flava tends to produce large amounts of leaf and flower litter in the summer and fall. The fruit makes good food ...