Historical clue formulations

• Brown, e.g. — 2024-07-11
• Poison ___ (plant) — 2023-12-18
• Brown, for one — 2023-09-10
• Climbing vine — 2023-02-13
• Columbia or Brown — 2021-04-07
• Climber in academia? — 2021-03-30
• Certain elite school — 2021-03-21
• Plant that sounds like two letters of the alphabet — 2019-08-23
• "The Holly and the ___" (Christmas song) — 2017-12-19
• Columbia, for one — 2017-05-02
• Columbia, e.g. — 2017-04-20
• University wall covering — 2015-06-16
• Natural rock climber — 2014-08-29
• Wall cover — 2014-05-21
• Wall-climbing plant — 2013-09-23
• Penn, e.g. — 2013-07-18
• Poison ___ — 2013-07-02
• Prestigious Eastern school, informally — 2013-03-12
• Brown, e.g. — 2012-02-16
• Brown, Penn or Harvard — 2012-01-24
• Dartmouth or Brown — 2011-12-27
• Brown wall covering — 2011-03-23
• It creeps up — 2011-01-28
• Trellis climber — 2010-06-23
• It climbs the walls — 2010-01-12
• Wall creeper — 2009-10-20
• What often grows attached? — 2008-08-23
• University wall covering — 2008-07-01
• Climbing vine — 2008-05-19
• Some Christmas greenery — 2008-03-03
• Old-fashioned Christmas trim — 2005-10-03
• Brown, e.g. — 2005-01-06
• Wrigley Field flora — 2004-09-29
• Creeper — 2004-04-24
• Yale, for one — 2004-03-16
• Brown, for one — 2003-04-13
• ___ League (56-Down's group) — 2003-02-24
• Wrigley Field flora — 2002-04-03
• Word with ground or Japanese — 2001-07-29
• Princeton greenery — 2001-03-27
• Wrigley Field feature — 2000-11-12
• Producer of wall flowers? — 2000-06-09
• It covers ground rapidly — 2000-04-23
• It's creepy — 2000-04-22
• Arbutus, e.g. — 1998-12-23
• Old college building feature — 1998-09-06
• Campus climber — 1997-12-31
• Brown, e.g. — 1996-06-30
• Wall clinger — 1995-03-22