Sweet-clover

Location: Main Campus, West Campus
Approximate blooming period: May - August

White sweet-clover, Melilotus albus

Origin: China
Habitat: Hardy to USDA Zone 0 
Height and Form: Biennial herbaceous plant that grows up to 7 ft high 
Foliage and Bark: alternate green leaves and stems 
Flowers, Fruit and Seeds: white, sweetly-fragrant bell-shaped flowers that grow up the stems, the fruits are egg-shaped pods 
Cultivars/Varieties: grows wild, has been used for medical purposes

Yellow sweet-clover, Melilotus officinalis

Origin: Western China
Habitat: Hardy to USDA Zone 0 
Height and Form: grows up to 5 ft high, is slightly shorter than white sweet clover 
Foliage and Bark: alternate green leaves and stems 
Flowers, Fruit and Seeds: yellow, bell-shaped flowers that grow up the stems, the fruits are egg-shaped pods 
Cultivars/Varieties: the leaves have a vanilla-like odor