1. Of leaves or flowers; developing or opening in succession from base to apex

Antonym: basipetal

• up in the air
• up quark
• up the creek
• up the stairs
• up to
• up to her neck
• up to his neck
• up to my neck
• up to now
• up to our necks
• up to par
• up to scratch
• up to snuff
• up to their necks
• up to your neck
• up-and-coming
• up-bow
• up-to-date
• up-to-dateness
• originate in
• origination
• origination fee
• originative
• originator
• orinasal