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
Flowers Are Red in a corner. Finally, the now terrified little boy gives in and tells the teacher that "flowers are red, and green leaves are green." When he goes to a different school, a new teacher encourages her students to use all sorts of colors, only to find the student only coloring his flowers red and green; when the new teacher asks the boy why, he meekly responds by quoting his previous teacher—"flowers are red, and green leaves are green." In the live concert versions, Chapin extended the song's ending to: "There still must be a way to have our children say..."