• Don Yurewicz

Water Marigold

Updated: Jun 16




Photos by Maria Gross. These samples were collected by Brad Gaudreault in South Cove near Boynton Island (lat/long: 43.941589N 71.062546W). Water marigold, is a native and is characterized by branching leaves surrounding a stem.


The stems of water marigold emerge from buried rootstalks and rhizomes. Two distinct leaf types are formed. The submersed leaves are finely divided, and oppositely arranged on the stem. When preparing to flower, lance-shaped leaves with serrated margins emerge from the surface of the water on robust stalks. The emergent leaves are also oppositely arranged and attached directly to the stem. Showy, yellow, daisy-like flowers (2 to 2.5 cm wide) are produced among the emergent leaves. (Excerpt from Maine's Interactive Field Guide to Aquatic Invaders).


Look Alikes: Coontail is similar, but does not branch as much, and leaves cup upward and feel plastic/course. Fanwort is also similar, but the fan shaped branching leaves are opposite, and in small stems off the main stem.

39 views0 comments

Recent Posts

See All

Never too late to post!

Reporting for Julie Hoyt …. On July 4th she described the usual route she follows when patrolling. She goes from almost the top of zone 4 (her parents’ home is at # 3468) and continues to just about

absolutely beautiful until that storm moved in fast.

I started out to look at zone two. Having great time in the sunshine and seeing all good plants. I got through grid 3626-3628 and 3585-3587 when that storm blew in fast. I had two kayakers take cove