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Lysimachia punctata L.

Garden loosestrife, yellow loosestrife, circle flower, large yellow loosestrife

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderEricalesTea, persimmon, blueberry, Brazil nut, azalea, many others
FamilyPrimulaceaePrimrose family
GenusLysimachiaNamed for Lysimachus, a king of ancient Sicily, who “calmed a mad ox” with a member of this species
Speciespunctata“Studded with tiny dots”

About plant names...

Garden loosestrife is native to Europe and western Asia, an has become naturalized in North America.

Plants: 18-36" (45-91 cm) tall, and up to 24" (60 cm) around, with stiff, upright stems.

Leaves: Leaves are in neat whorls, narrow, about 2" (5 cm) long.

Flowers: Multiple yellow star-shaped flowers, each about ¼-½" (8.3-12 mm) across, nestle among the upper leaves of each stem. They appear from May to September.

Online References:

Lysimachia punctata at the Missouri Botanical Garden

Lysimachia punctata on plants.ces.ncsu.edu

Lysimachia punctata on the Connecticut Botanical Society's Connecticut wildflowers site

Lysimachia punctata in Paghat's Garden

Lysimachia punctata on Bjørn Rørslett/NN's Nature Photography site (photo taken in ultraviolet light)

Lysimachia punctata at Gymnosperms.org

Lysimachia punctata on eFloras

Lysimachia punctata (garden loosestrife, yellow loosestrife, circle flower, large yellow loosestrife)

3/30/2010 · Scarborough Marsh, Scarborough, Maine · By Constance B. Kent

Lysimachia punctata L. var. verticillata (M. Bieb.) Klatt


Lysimachia punctata description by Thomas H. Kent, last updated 6 Sep 2021.

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