Germination of Cassia Seeds
Information about Cassia and Butterflies
General Cassia Information from botany.com

Types of Cassia (click on links for photos or more information):

Interesting excerpt from http://www.agric.wa.gov.au/progserv/plants/weeds/weeds/c_e.htm
Note how its in the WEEDS section - they don't like our little plant much.

A great Cassia page in Spanish: http://www.guiaverde.com/arboles/Cassia.htm

afrofistula	Kenyan Shower Tree
alata	Candlestick Senna, Candleabra (pretty)
angustifolia	Senna (Info)
armata	Senna Armata, spiny senna (more pics from Cal Berkley Digital Library Project)(specs)
artemisioides (2)	Feathery Cassia (seed pods)
bicapsularis	What got me all started in Cassia (good pics here)
brewsterii	An australian specimen
corymbosa	Flowery senna
covesii	Desert Senna (LOTS of pics of seedlings growing!)
didymobotrya	Popcorn Cassia, Similar to Alata
eremophila	Desert Cassia
excelsa	Crown of Gold Tree
fasciculata	Slim-pod Senna, Partridge Pea
fistula	Golden Shower or Shower of Gold, Pudding Pipe Tree, Purging Cassia, Indian Laburnum
grandis (2) (3)	Pink Shower Tree, Horse Cassia
hybrida	White Rainbow Shower Tree, Cultivated, from Maui, Hawaii
javanica (2)	Apple Blossom
javanica x Cassia fistula	Rainbow Shower Tree, Cultivated, from Maui, Hawaii.
leptocarpa
lepotophylla	Gold Medallion Tree
lindheimeriana (2)	Velvet Leaf Senna
marilandica	Wild Senna, American Senna
marksiana	Brush Cassia
nemophylla	Desert Cassia
nitida
nodosa	???
notabilis	Cockroach Bush
obtusifolia (2)	(this sure looks like c. bicapsularis)
occidentalis (2)
phyllodenia	Senna
roemeriana	Cheery Orange Senna
roxburghii	Ceylon Senna
siamea	Cassod Tree, Thai Copper Pod
spectabilis	Spectacular Cassia from Spain
splendida	Golden Wonder Senna
surattensis	Sunshine Tree, native to Hong Kong (S.E. Asia)
wislizenii	Canyon Senna, Shrubby Senna (UNLV)