Wikipedia:

Golden Shower Tree | Cassia fistula [species]

Summary:

a flowering plant in the family Fabaceae, native to southern Asia, from southern Pakistan east through India to Myanmar and south to Sri Lanka. It's the national tree of Thailand. The Golden Shower Tree is a medium-sized tree growing to 10–20 m tall...  (44 of 1117 words, 4 images)

Link:

http://en.wikipedia.org/wiki/Golden Shower Tree  [cite]

Columbia:

senna | canafistula | golden shower

Summary:

any plant of the genus Sennia (formerly placed in Cassia), leguminous herbs, shrubs, and trees of the family Leguminosae (pulse family), most common ...  (23 of 162 words)

Link:

http://www.infoplease.com/ce6/sci/A0844428.html  [cite]

Britannica:

horseradish tree | drumstick tree

Summary:

small, deciduous tree, of the family Moringaceae, native to tropical Asia but also naturalized in Africa and tropical America. Horseradish trees can ...  (22 of 102 words)

Link:

http://www.britannica.com/EBchecked/topic/172119/horseradish-tree  [cite]

Random House:

golden shower. | pudding-pipe tree | Cassia fistula [species]

Summary:

a tree of the legume family, native to India, having long, drooping clusters of yellow flowers.  (16 of 24 words)

Link:

http://dictionary.infoplease.com/golden-shower  [cite]

Merriam-Webster:

cassia

Summary:

a dried coarse cinnamon bark (as from Cinnamomum cassia) | any of a genus (Cassia) of leguminous herbs, shrubs, and trees of warm regions  (23 of 55 words, 2 senses, 1 etymology, pronunciation)

Link:

http://www.merriam-webster.com/dictionary/cassia  [cite]

Encarta:

cassia | cassias [plural]

Summary:

an evergreen Asian tree with an aromatic bark. Latin name Cinnamomum aromaticum. | the bark of the cassia tree  (18 of 41 words, 2 senses, 1 etymology, pronunciation)

Link:

http://encarta.msn.com/dictionary 1861595322/definition.html  [cite]

Wiktionary:

cassia | cassias [plural]

Summary:

[countable noun] Any of several tropical leguminous plants, of the genus Cassia, used medicinally as senna. | [uncountable] A spice (similar to cinnamon) made from the bark of the Chinese cinnamon, Cinnamomum aromaticum.  (32 of 32 words, 2 senses, 1 image)

Link:

http://en.wiktionary.org/wiki/cassia  [cite]