Photographer: Christopher Noll
Lysimachia thyrsiflora L.
swamp loosestrife, tufted loosestrife
Lysimachia: probably for Greek king Lysimachus or maybe from Greek lysis for "a release from" and mache for "fighting or strife"
thyrsiflora: flowers in a thyrse (stalks multiply branched)
|Plant: ||erect, perennial, 1' -2 1/2' tall forb; roots long, creeping on or near the surface of the ground|
|Flower: ||yellow, 6-parted, 1/3" wide, petals linear with black marks, separate stamens nearly twice as long as the petals; inflorescence a few, 1/3"-1 1/4" tall, dense, short, rounded clusters (racemes) on stalks spreading from the middle leaf axils; blooms May-July|
|Leaf:||narrowly lance-like to linear, dotted|
|Habitat: ||wet; bogs, marshes, shallows|