Global Menu

  • Neon Science
  • Data Portal
  • Biorepository
  • NSF NEON | Open Data to Understand our Ecosystems
  • Biorepository Data Portal

  • Search
    • Sample search
    • Map search
    • Dynamic Species List
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Image Search
  • Checklists
    • Research Sites - Invertebrates
    • Research Sites - Plants
    • Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Data Usage Policy
  • Additional Information
    • Tutorials and Help
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Lysimachia nummularia L.  
Family: Primulaceae
creeping jenny
Lysimachia nummularia image
Paul Rothrock  
  • FNA
  • Gleason & Cronquist
  • Web Links
Anita F. Cholewa in Flora of North America (vol. 8)
Stems prostrate or trailing (rooting at nodes and often forming mats), simple or branching proximally, 1-5 dm, glabrous or sparsely stipitate-glandular; rhizomes slender to somewhat thickened; bulblets absent. Leaves opposite; petiole 0.1-0.5 cm, eciliate; blade orbiculate to ovate-orbiculate, 1-3.5 × 0.5-3.5 cm, base rounded, decurrent, margins entire, plane, eciliolate, apex rounded, surfaces reddish-brown punctate, glabrous; venation pinnate-arcuate. Inflorescences axillary in medial leaves, solitary flowers. Pedicels 1-8 cm, glabrous. Flowers: sepals 5, calyx streaked with dark resin canals, 5-8 mm, glabrous, lobes ovate to deltate, margins thin; petals 5, corolla yellow, finely streaked with black resin canals, campanulate to rotate, 10-15 mm, lobes with margins somewhat irregularly erose apically, apex rounded to acute, finely stipitate-glandular (sometimes sparsely so); filaments connate ca. 1 mm, shorter than corolla; staminodes absent. Capsules not seen. 2n = 30, 32, 43 (Europe). Flowering summer. Wet meadows, seeps, pond edges, stream banks, flood plains, wet roadside ditches, mesic woods; 0-1700 m; introduced; B.C., N.B., N.S., Ont., P.E.I., Que.; Ala., Ark., Calif., Colo., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Oreg., Pa., R.I., S.C., Tenn., Vt., Va., Wash., W.Va., Wis.; Eurasia. Lysimachia nummularia has been collected as an adventive in Newfoundland. Lysimachia nummularia is part of a Eurasian complex of 38 species centered on the Indian subcontinent, whose boundaries are not well understood. North American populations of this species rarely, if ever, produce capsules. Plants of eastern Asia are reported to produce fruit; seed viability is unknown. The species reproduces by vegetative means, often forming extensive mats.

Vascular plants of NE US and adjacent Canada
Creeping, often forming mats; lvs opposite, punctate, short-petioled, broadly quadrate to subrotund, 1-2.5 cm; fls solitary in the axils, the pedicels about equaling the lvs; cal-lobes foliaceous, triangular-ovate, 8 mm; cor-lobes 10-15 mm, dotted with dark red; 2n=32, 36, 43, 45. Native of Europe, escaped from cult. into moist places nearly throughout our range, often weedy. June-Aug.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
  • BOLD Systems - Barcode of Life Data Systems
  • Encyclopedia of Life
  • Flora of North America
  • Google Images
  • Google Search Engine
  • International Plant Names Index
  • NCBI - National Center for Biotechnology Information
  • USDA PLANTS Database
  • W3Tropicos
Lysimachia nummularia
Open Interactive Map
Lysimachia nummularia image
Lysimachia nummularia image
Click to Display
3 Total Images
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.