Acer

red mapleAcer rubrum · Flowering plantsLate in its seasonPhoto no rights reserved, uploaded by mefisher · CC0 1.0Early March to early November, middle week Aug 30 – Sep 5sugar mapleAcer saccharum · Flowering plantsLate in its seasonPhoto © Michael John Oldham · CC BY-NC 4.0Late March to early November, middle week Sep 6–12black mapleAcer nigrum · Flowering plantsPhoto © allenwoodliffe · CC BY-NC 4.0No season shownbox elderAcer negundo · Flowering plantsPhoto © Jay Pruett · CC BY 4.0No season shownfield mapleAcer campestre · Flowering plantsPhoto © Peter O'Connor · CC BY-SA 4.0No season shownFreeman's mapleAcer × freemanii · Flowering plantsMountain MapleAcer spicatum · Flowering plantsPhoto © mariepierlandry6 · CC BY-NC 4.0Norway mapleAcer platanoides · Flowering plantsPhoto © tauntonguy02780 · CC BY-NC 4.0No season shownsilver mapleAcer saccharinum · Flowering plantsPhoto no rights reserved · CC0 1.0No season shownTatarian MapleAcer tataricum · Flowering plantsPhoto © Alexander Baransky · CC BY-NC 4.0

Missing records do not mean a species is absent.