These dark blue berries at the end of a slender naked stalk that arises from the leaf joint at the top of the plant were encountered on a late August day in Fillmore Glen, Moravia, Cayuga County, New York State. Lysimachia borealis is a perennial wildflower commonly known as Starflower. After blooming in the spring, as a member of the primrose family these are some of the first flowers to appear, the fertilized flowers develop into this round purple fruit. To confuse identification, the plant is also known as Trientalis borealis.
“Lysimachia species are used as food plants by the larvae of some butterflies and moths, including the dot moth, grey pug, lime-speck pug, small angle shades, and v-pug.” Chipmunks eat these fruits as a minor portion of their diet.
“Bees of the genus Macropis are specialized to pollinate oil-producing Lysimachia plants. These bees use exclusively Lysimachia floral oils for building their nests and provisioning cells. Lysimachia floral-specific chemicals are strong attractors for Macropis nuda and Macropis fulvipes bees that are seldom found in other plant genera.”
Do not confuse this with another “starflower,” Borago officinalis, from which an oil is produced commercially.
Reference: text in italics and quotes is from the Wikipedia, “Lysimachia.”
Michael Stephen Wills Photography 