Rumex hastatulus plants George Bruso, Johnson Wildflower Center Slide Library

Rumex hastatulus plants
George Bruso, Johnson Wildflower Center Slide Library

Dicotyledoneae (Dicots)
Polygonaceae (Buckwheat Family)
State Protection
Federal Protection
Not Listed
State Conservation Status Rank
Global Conservation Status Rank


Did you know?

A historical record from 1929 at Napeague Meadows on Long Island was rediscovered in 1986 and was the only known population in the state. Unfortunately, after many searches in the 2000s, it has not been seen again.

State Ranking Justification

There are no existing populations, although one population on Long Island was known to exist in 1986 but has not been seen since. There are five other historical occurrences mostly from the late 1800s.

Short-term Trends

The short-term trend is apparantly negative. Our only existing population, containing 50-100 plants, has not been seen since 1986. This species may be extirpated in New York.

Long-term Trends

Long-term trends will probably continue at very low levels. This species was always very rare in New York with only five populations known, mostly from the late 1800s and early 1900s. One population was rediscovered in 1986 but is probably extirpated.

Conservation and Management


The sandy open habitat of this plant may be threatened by woody plant succession or by changes in the depth of the underlying water table.

Conservation Strategies and Management Practices

This species needs disturbance to reduce competition from woody plants or more aggressive herbaceous plants. However, too much direct disturbance to the plants will reduce or eliminate the population. Its habitat could be disturbed after the growing season to open it up for seed germination and colonization but left undisturbed during the growing season.

Research Needs

Research is needed to determine the viability and longevity of the plant's seed bank.



In New York, Heart Sorrel is known only from brackish meadows and sandy shorelines on Long Island (New York Natural Heritage Program 2010). Dry to moist alluvial and ruderal habitats, river valleys, sandy plains, meadows, waste places (FNA 2005). Sandy soil of the coastal plain (Gleason and Cronquist 1991).

Associated Ecological Communities

  • Brackish interdunal swales* (guide)
  • Brackish meadow* (guide)
  • Railroad*
  • Successional northern sandplain grassland*

Associated Species

  • Liatris scariosa
  • Myrica pensylvanica
  • Panicum virgatum (switch grass)
  • Schizachyrium scoparium


New York State Distribution

There are a few specimens from Suffolk County, Long Island, where it was known from one site until the late 1990s. There is also one specimen each from Nassau, Putnam, and St. Lawrence counties. There is an old report from the salt marshes of the Syracuse area.

Global Distribution

This is common in the Southern states from eastern Oklahoma and eastern Texas, east through North Carolina and Florida. There are scattered populations north into Kansas, Missouri, Illinois, Indiana, and also up the East Coast from Virginia to eastern Massachusetts. It is probably extirpated in New Jersey, Pennsylvania, and New York as well as Illinois.

Best Places to See

  • Napeague State Park (Suffolk County)

Identification Comments

General Description

Heart Sorrel is a dioecious, tap-rooted perennial herb, growing from 40 to 100 cm tall. The stems branch from the base, and the leaves are spear-shaped ("hastate"), with two often unequal lateral lobes at the base and a central linear or oblong one. Like other members of the buckwheat family, the stems are swollen at the nodes. The flowers are tiny (1 to 3 millimeters), greenish or reddish, and densely packed into a compound infloresence. Upon maturity, the inner tepals of Rumex flowers form structures called valves, surrounding the fruit. The midrib of one of these valves forms a protruding structure called a tubercle. The fruit are brown achenes 1 to 1.5 mm long, enclosed by winged valves 2.5 to 3.5 mm in diameter (FNA 2005).

Best Life Stage for Proper Identification

Fruiting plants are most easily identified, though identification from vegetative material may be possible in some cases.

Similar Species

Rumex acetosella ssp. pyrenaicus and R. acetosa (both non-native species) are the two other Rumex species in New York with hastate or sagittate leaves. R. acetosella ssp. pyrenaicus has slender, creeping roots, and the achenes are closely wrapped by the valves. R. acetosa has mainly sagittate (arrow-shaped) leaves, and midribs of the valves are expanded into grains. Rumex hastatulus has a thick taproot, and its fruits have expanded, wing-like valves, lacking grains (FNA 2005).

Best Time to See

Heart sorrel flowers in June and the fruits are present from late June through July.

  • Flowering
  • Fruiting

The time of year you would expect to find Heart Sorrel flowering and fruiting in New York.

Heart Sorrel Images


Heart Sorrel
Rumex hastatulus Baldw.

  • Kingdom Plantae
    • Phylum Anthophyta
      • Class Dicotyledoneae (Dicots)
        • Order Polygonales
          • Family Polygonaceae (Buckwheat Family)

Additional Common Names

  • Red Sorrel
  • Sheep Sorrel
  • Wild Sorrel


  • Rumex engelmannii Meisn.

Additional Resources

Best Identification Reference

Flora of North America Editorial Committee. 2005. Flora of North America North of Mexico, Volume 5, Magnoliophyta: Caryophyllidae, Part 2. Oxford University Press, New York.

Other References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York. 910 pp.

Holmgren, Noel. 1998. The Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York.

House, Homer D. 1924. Annotated list of the ferns and flowering plants of New York State. New York State Museum Bulletin 254:1-758.

Mitchell, Richard S. and Gordon C. Tucker. 1997. Revised Checklist of New York State Plants. Contributions to a Flora of New York State. Checklist IV. Bulletin No. 490. New York State Museum. Albany, NY. 400 pp.

Mitchell, Richard S. and J. Kenneth Dean. 1978. Polygonaceae (buckwheat family) of New York State. Contributions to a flora of New York State. Richard S. Mitchell, ed. New York State Museum Bulletin No. 431. 79 pp.

New York Natural Heritage Program. 2010. Biotics database. New York Natural Heritage Program. New York State Department of Environmental Conservation. Albany, NY.

New York Natural Heritage Program. 2019. New York Natural Heritage Program Databases. Albany, NY.

Smith, Gerald A. No date. Bird breeding season survey at El Dorado Beach Preserve 1981-.

Weldy, T. and D. Werier. 2010. New York flora atlas. [S.M. Landry, K.N. Campbell, and L.D. Mabe (original application development), Florida Center for Community Design and Research University of South Florida]. New York Flora Association, Albany, New York


About This Guide

This guide was authored by: Stephen M. Young

Information for this guide was last updated on: September 20, 2012

Please cite this page as:
New York Natural Heritage Program. 2019. Online Conservation Guide for Rumex hastatulus. Available from: Accessed March 25, 2019.

Back to top