Mahua

Krishn Jee said - "Madhook (Mahuaa tree) tree appeared from Saagar Manthan. It was the giver of unbroken Suhaag and good fortune so people of Bhoo Lok planted it on Prithvi. Lakshmee, Saraswatee, Saavitree, Gangaa, Rohinee, Rambhaa, Arundhatee etc also worshipped that tree, and Gauree (Paarvatee - Shiv's wife) gave them their desired Var [of Suhaag]. Because this worship was done on the 3rd day of Phaalgun Shukla, that is why one should keep fast on this day, then worship Madhook tree imagining Paarvatee's image sitting in meditating form with this Mantra. (Mantra given on p 395) Circumambulate the tree and give Dakshinaa to Braahman. Whoever maiden does this Vrat she gets a husband like Vishnu. First time Kashyap Jee told about this Vrat to Rukminee."

Source
Bhavishya Puran

http://en.wikipedia.org/wiki/Madhuca_longifolia 

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