Skip to main content

Robbins' Cinquefoil

Robbins' Cinquefoil

Potentilla robbinsiana

Status Endangered
Listed September 17, 1980
Family Rosaceae (Rose)
Description Low-growing perennial with compound leaves and yellow flowers.
Habitat Mountain terraces in shallow sandysoil.
Threats Low numbers, recreational use of habitat.
Range New Hampshire

Description

Robbins' cinquefoil, Potentilla robbinsiana, also known as dwarf cinquefoil, is a low, almost stemless, perennial. It grows from a deep taproot and forms a dense rosette of compound leaves, formed from three leaflets. Mature plants are typically no more than 1.6 in (4 cm) in diameter. Flowering begins during the last week of May, and scattered yellow blooms may be found almost any time until October. Seeds mature in July and are dispersed by the wind. Seedlings never seem to sprout much more than a few inches from the parent plant.

From half to three-fourths of mature plants flower each year, producing an average of three flowers per plant. As many as 30 flowers have been observed from a single large plant.

Habitat

Robbins' cinquefoil grows in a treeless, nearly barren mountain habitat above 4,000 ft (1,220 m) in elevation, where the climate is harsh and competition from other plants is low. It roots in shallow, loamy sand terraces with a stony pavement-like surface that is subject to year-round frost heaving. The weakly calcareous soil is derived from fine-grained mica schist. The stony surface layer protects the soil from blowing or washing away in high winds or severe storms. Fine soil particles collect among the stones and become nurseries for newly germinated cinquefoil.

Distribution

This cinquefoil is endemic to the White Mountains of New Hampshire and Vermont. It was known historically from four sites. The two existing natural populations of this New Hampshire plant have been monitored since the species was listed in 1980, and are fully protected through cooperative efforts by the U. S. Fish and Wildlife Service (FWS), U. S. Forest Service (USFS), and Appalachian Mountain Club (AMC). Only one population of Robbins' cinquefoil, found on a 2-acre (0.8-hectare) patch at Monroe Flats is considered stable and viable. In addition, four transplanted colonies are being monitored on Forest Service lands.

In 1980 the population consisted of 3,700 established plants, plus an additional 770 newly germinated seedlings at two different sites. In 1985, only about 1,600 plants survived in an area of less than 2.5 acres (1 hectare). Current populations are estimated at about 1,700 adults.

Threats

Hikers and collectors are principally responsible for the two of the four historic populations of Robbins' cinquefoil. Decline of the remaining populations was caused by hikers along the Appalachian Trail. The fragile habitat along the trail is open to hikers who stray from the established path, but it is extremely vulnerable to disturbance. Hikers dislodge the close-fitting "pavement" stones of the surface, causing soil from around the plants to wash or blow away. When roots are thus exposed, plants die. Once disturbed, the cinquefoil is very slow to recover. Because of the harsh extremes of the climate, seedling mortality is high, and the population is subject to a large natural fluctuation of numbers.

Conservation and Recovery

In 1981, the FWS, the USFS, and the AMC began a joint public education program encouraging hikers to "stay on the trail" to protect the cinquefoil and other alpine plants. In 1983, the Crawford Path was diverted around the population site, essentially closing the area to public access.

The Robbins' Cinquefoil Recovery Plan was completed in 1985 and outlines three major objectives: to protect the existing population in its entirety; to encourage natural expansion; and to establish four new self-sustaining populations within the plant's historic range. Critical Habitat was designated to include the Monroe Flats area, a strip of land 4,000 ft (1,220 m) long by 450 ft (137 m) wide.

Research into the plant's biology has been conducted by the FWS in conjunction with the AMC and the USFS with a view toward transplantation efforts. Because of the plant's rarity and unusual reproductive strategy, the recovery plan called for an extensive species viability analysis, population dynamics studies, and refinement of propagation and transplant techniques. These studies are now complete, and transplanting expeditions have become an annual event for the recovery partners.

Such cooperation has engendered optimism for the survival of Robbins' cinquefoil. Public education, an updated recovery plan, a permanent educational display for hikers, and the rerouting of a hiking trail are having positive effects.

Contact

U. S. Fish and Wildlife Service
Regional Office, Division of Endangered Species
300 Westgate Center Dr.
Hadley, Massachusetts 01035-9589
Telephone: (413) 253-8200 Fax: (413) 253-8308
http://northeast.fws.gov/

References

Graber, R. E. 1980. "The Life History and Ecology of Potentilla robbinsiana." Rhodora 2: 131-140.

Storks, I. M., and G. E. Crow. 1979. "Endangered, Threatened, and Rare Plants of the White Mountain National Forest, New Hampshire." University of New Hampshire Department of Botany and Plant Pathology, Durham, New Hampshire.

U. S. Fish and Wildlife Service. 1983. "The Robbins' Cinquefoil Recovery Plan." U. S. Fish and Wildlife Service, Newton Corner, Massachusetts.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Robbins' Cinquefoil." Beacham's Guide to the Endangered Species of North America. . Encyclopedia.com. 19 Nov. 2018 <https://www.encyclopedia.com>.

"Robbins' Cinquefoil." Beacham's Guide to the Endangered Species of North America. . Encyclopedia.com. (November 19, 2018). https://www.encyclopedia.com/environment/science-magazines/robbins-cinquefoil

"Robbins' Cinquefoil." Beacham's Guide to the Endangered Species of North America. . Retrieved November 19, 2018 from Encyclopedia.com: https://www.encyclopedia.com/environment/science-magazines/robbins-cinquefoil

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.