New York Natural Heritage Program
Four-flowered Loosestrife
Lysimachia quadriflora Sims

Habitat [-]
All the known New York populations of this species were found in wet, calcareous habitats, including graminoid fens and dolomite riverside outcrops (NYNHP 2013). Moist prairies, meadows, roadsides, springs, swamps, bogs, other wetlands (FNA 2010). Fens, wet prairies, and calcareous marshy shores (Voss 1996). Moist or wet soil, especially on prairies (Gleason and Cronquist 1991). Calcareous bogs, swales, and shores (Fernald 1950).

Associated Ecological Communities [-]
  • Calcareous cliff community*
    A community that occurs on vertical exposures of resistant, calcareous bedrock (such as limestone or dolomite) or consolidated material; these cliffs often include ledges and small areas of talus.

    * probable association but not confirmed
  • Calcareous shoreline outcrop
    A community that occurs along the shores of lakes and streams on outcrops of calcareous rocks such as limestone and dolomite. The vegetation is sparse; most plants are rooted in rock crevices.
  • Cobble shore*
    A community that occurs on the well-drained cobble shores of lakes and streams. These shores are usually associated with high-energy waters (such as high-gradient streams), and they are likely to be scoured by floods or winter ice floes.

    * probable association but not confirmed
  • Rich graminoid fen
    A wetland of mostly grasses usually fed by water from highly calcareous springs or seepage. These waters have high concentrations of minerals and high pH values, generally from 6.0 to 7.8. Plant remains do not decompose rapidly and these grasses usually grow on older, undecomposed plant parts.

Associated Species [-]
  • Orchard Grass (Dactylis glomerata)
  • Wild Carrot (Daucus carota)
  • Robin's Plantain (Erigeron pulchellus)
  • Common Boneset (Eupatorium perfoliatum)
  • Flat-top Fragrant Goldenrod (Euthamia graminifolia)
  • Spotted Joepyeweed (Eutrochium maculatum)
  • Panicled Hawkweed (Hieracium paniculatum)
  • A St. John's-wort (Hypericum perforatum)
  • Common St. John's-wort (Hypericum punctatum)
  • Path Rush (Juncus tenuis)
  • Purple Loosestrife (Lythrum salicaria)
  • Sulphur Cinquefoil (Potentilla recta)
  • Virginia Mountain-mint (Pycnanthemum virginianum)
  • Buckthorn (Rhamnus cathartica)
  • Harger's Goldenrod (Solidago canadensis)