proterandry /pro- or prō-tə-ranˈdri/ (botany and zoology)

Protandry

• up one's street
• upon my honour
• upon my soul
• upon my word
• upon oath
• upon one's best behaviour
• upon one's legs
• upon the alert
• upon the anvil
• upon the gad
• upon the heels of
• upon the shun
• upon the whole
• upon the wing
• up-over
• upo’
• upped
• upper
• upper atmosphere
• upper atmospheres
• upper-bracket
• upper-case
• upper chamber
• up-perched
• upper class