Possible Clues:

• It flowers a short time in Siam wild
• Plant drawn very minute in plan
• Variety of acacia
• Bush -- 'I am very big in Massachusetts'
• Plant having clusters of flowers that are usually yellow
• Shrub with bubbly-looking, yellow flowers depicted in Miami mosaic
• Brunch quaff
• Bubbly cocktail
• Maureen's first among arrivals to imbibe one's Buck's fizz
• Graduate welcomes tips in making one sparkling champagne cocktail