1. The marigold.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• calendria,
• xalendula,
• valendula,
• falendula,
• dalendula,
• czlendula,
• cslendula,
• cwlendula,
• cqlendula,
• cakendula,
• calendulla,
• celendula,
• calandula,
• calendilin,
• Calandulin,
• Calendulan,
• calenture,
• paleoola,
• caleatura,
• habenula

• calender,
• Calandra,
• calendered,
• calendar day,
• calendar,
• calliandra,
• calendrical,
• calendric,
• calando,
• callender.

The adjective form of the word "calendula" is "calendular".

The plural of the "calendula" can be the "calendulas".

The singular of the "calendula" can be the "calendula".