Laburnum in "L. anagyroides" and long in "L. alpinum". They have yellow pea-flowers in pendulous leafless racemes long in spring, which makes them very popular garden trees. In "L. anagyroides", the racemes are long, with densely packed flowers; in "L. alpinum" the racemes are long, but with the flowers sparsely along the raceme. The fruit develops as a pod and is extremely poisonous. The yellow flowers are responsible for the old poetic name 'golden chain tree' (also spelled golden chaintree or goldenchain tree). All parts of the plant are poisonous, although mortality is very rare. Symptoms of laburnum poisoning may include
Senegalia senegal kinds of very strong ropes and cords. The tree bark is also used to make rope. The wood of "S. senegal" can be used to make handles for tools, and parts for weaving looms. It is also valued as firewood and can be used to produce charcoal. "S. senegal" contains hentriacontane, a solid, long-chain alkane hydrocarbon. The leaf also contain the psychoactive alkaloid dimethyltryptamine. Senegalia senegal Senegalia senegal (until recently known as "Acacia senegal") is a small thorny deciduous tree from the genus "Senegalia", which is known by several common names, including Gum acacia, Gum arabic tree, Sudan gum and