Historical clue formulations

• Flower found at the end of a rainbow? — 2026-05-06
• Rainbow hue — 2024-09-03
• Rainbow's end — 2024-05-01
• Common five-petaled flower — 2023-09-28
• State flower of Illinois or New Jersey — 2021-06-27
• Color akin to plum — 2012-02-29
• Symbol of modesty — 2009-07-12
• Shrinking ___ — 2005-01-11
• Johnny-jump-up, e.g. — 2003-10-16
• End of a rainbow? — 2001-05-18
• Like Liz Taylor's eyes — 2001-03-11
• It may be ultra — 1995-03-15
• "Peanuts" girl — 1994-01-14