Family: Primulaceae
Author: L.
Bibliography: Sp. Pl.: 147 (1753)
Year: 1753
Status: accepted
Rank: species
Genus: Lysimachia
Vegetable: False
Observations: E. Canada to NC. & E. U.S.A.
Description
Whorled loosestrife, scientifically known as Lysimachia quadrifolia, is a fascinating plant species that captures the interest of botanists and plant enthusiasts alike. This perennial herb is a member of the Primulaceae family and is indigenous to the Eastern regions of Canada as well as the Eastern United States, stretching as far south as North Carolina.
Characterized by its distinctive whorled leaf arrangement, whorled loosestrife displays sets of four lance-shaped leaves spiraling around the stem, giving it a unique and easily identifiable appearance. This leaf pattern not only contributes to its aesthetic appeal but also differentiates it from other species within the Lysimachia genus.
The plant produces charming, star-shaped yellow flowers with reddish-brown spots at the base, which typically bloom from late spring to midsummer. These blossoms, arranged in loose clusters at the tips of the stems, are both delicate and eye-catching, attracting a variety of pollinators such as bees and butterflies.
Whorled loosestrife thrives in a variety of habitats, including open woodlands, meadows, and along stream banks. It prefers moist, well-drained soils and can tolerate both full sun and partial shade, making it a versatile addition to many garden settings. Its ability to prosper in different environments highlights the resilience and adaptability of the species.
Not only is whorled loosestrife an attractive plant for gardens and natural landscapes, but it also plays an important ecological role. By providing nourishment and habitat for pollinators, it supports local biodiversity and contributes to the stability of its native ecosystems.
Originally described in 1753, whorled loosestrife has been documented and appreciated for centuries. Its scientific moniker derives from the Latin, reflecting its characteristics and the historical context of its classification.
In summary, Lysimachia quadrifolia is a noteworthy plant marked by its distinct leaf whorls, vibrant flowers, and ecological contributions. Its presence in Eastern Canada and the Eastern United States testifies to its broad native range and adaptability, making it a plant worthy of both scientific study and horticultural interest.
Common Names
Eng: crosswort, whorled loosestrife, whorled yellow loosestrife
Fra: lysimaque à quatre feuilles
En: Whorled loosestrife, Whorled yellow loosestrife, Whorled Yellow-Loosestrife, Crosswort
Fi: Tähtialpi
Fr: Lysimaque à quatre feuilles
Sv: Kranslysing
Synonyms
- Lysimachia punctata (Walter)
- Anagallis flava (Houtt.)
- Lysimachia hirsuta (Michx.)
- Lysimachia quadrifolia var. variegata (Peck)
- Lysimachia quadrifolia f. variegata ((Peck) House)
- Lysimachia quadrifolia f. rubescens (Moldenke)
Distribution
- Alabama (native)
- Connecticut (native)
- Delaware (native)
- District of Columbia (native)
- Georgia (native)
- Illinois (native)
- Indiana (native)
- Kentucky (native)
- Maine (native)
- Maryland (native)
- Masachusettes (native)
- Michigan (native)
- Minnesota (native)
- New Brunswick (native)
- New Hampshire (native)
- New Jersey (native)
- New York (native)
- North Carolina (native)
- Ohio (native)
- Oklahoma (native)
- Ontario (native)
- Pennsylvania (native)
- Québec (native)
- Rhode I. (native)
- South Carolina (native)
- Tennessee (native)
- Vermont (native)
- Virginia (native)
- West Virginia (native)
- Wisconsin (native)
Additional Images
Leaf
Taken May 29, 2014 by EOL − Christopher Tracey (cc-by-nc-sa)
Taken Jun 14, 2013 by EOL − yasingi (cc-by-nc)
Taken Jun 7, 2020 by Dean Landolt (cc-by-sa)
Taken Jun 21, 2022 by suzan oconnor (cc-by-sa)
Taken Jul 25, 2019 by lavender rose (cc-by-sa)
Flower
Taken Jun 27, 2019 by Caitlin K (cc-by-sa)
Taken Jun 26, 2021 by Natures Fairy (cc-by-sa)
Taken Jul 6, 2019 by StormGuard (cc-by-sa)
Taken Jun 18, 2022 by Alice Schaub (cc-by-sa)
Taken Aug 30, 2020 by Magda Zowada (cc-by-sa)
Fruit
Taken Aug 25, 2020 by Nata Ka (cc-by-sa)
Taken Jan 1, 1900 by EOL − This image is not copyrighted and may be freely used for any purpose. Please credit the artist, original publication if applicable, and the USDA-NRCS PLANTS Database. The following format is suggested and will be appreciated: Jennifer Anderson @ USDA-NRCS PLANTS Database If you cite (public)
Habit
Taken Jun 25, 2014 by EOL − Robert L Curtis (cc-by-nc-sa)
Taken Jun 29, 2014 by EOL − Susan Elliott (cc-by-nc)
Taken Jun 16, 2011 by EOL − Cyric (cc-by-nc-sa)
Taken Jun 11, 2011 by EOL − Ken-ichi Ueda (cc-by-nc-sa)
Taken Jul 15, 2013 by EOL − Jennifer Clevinger (cc-by-nc)
Bark
Taken May 29, 2004 by EOL − Steven J. Baskauf (cc-by-nc-sa)
Other
Taken Jul 25, 2019 by lavender rose (cc-by-sa)
Sources
- WFO (No URL)
- IPNI (No URL)
- POWO (http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:280144-2)
- GBIF (https://www.gbif.org/species/3169357)
- PlantNet (https://identify.plantnet.org/species/the-plant-list/Lysimachia quadrifolia L.)
Specifications
Growth habit>: Forb/herb
Growth
Ph maximum: 6.5
Ph minimum: 5.5
Light: 6
Atmospheric humidity: 8
Soil nutriments: 4