''Lysimachia ciliata'', the fringed loosestrife, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Primulaceae The Primulaceae , commonly known as the primrose family (but not related to the Onagraceae, evening primrose family), are a family (biology), family of Herbaceous plant, herbaceous and woody flowering plants including some favourite garden plants ...

. It is an erect

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of t ...

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

growing to tall and broad, with opposite, simple

leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...

, and smooth green stems. The star-shaped yellow flowers are borne in midsummer. It is

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

to North America, including most of southern Canada and most of the United States except for the southwest. This plant is notable in that it is one of the few species of ''Lysimachia'' to bear elaiophores, that is, to offer oil instead of nectar as a reward to pollinators. It is pollinated in the northern part of its range by the specialist oil bee ''

Macropis nuda ''Macropis nuda'' is a ground nesting, univoltine bee native to northern parts of North America. Thus, this species cocoons as pupae and hibernates over the winter. The species is unusual as it is an oligolectic bee, foraging exclusively for flor ...

'', a native bee species whose survival depends upon this host plant. It is also cultivated as an

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that i ...

. It can be aggressive, but new suckers can be removed easily to keep plant size under control. The most common cultivars of ''L. ciliata'' include: * ''L. ciliata'' 'Firecracker' * ''L. ciliata'' 'Purpurea' 'Firecracker' has gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nort ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

References

External links

USDA Plants Profile for''Lysimachia ciliata'' (fringed loosestrife)''Lysimachia ciliata'' — U.C. Photo gallery
ciliata Flora of Canada Flora of the Eastern United States Flora of the Western United States Flora of Alaska Plants described in 1753 Taxa named by Carl Linnaeus Flora without expected TNC conservation status {{Primulaceae-stub