Spalding's Catchfly (Silene spaldingii)
Where Listed: WHEREVER FOUND
Spalding’s catchfly (Silene spaldingii) is an herbaceous perennial in the pink family (Caryophyllacea). The species is endemic to the Palouse region of south-east Washington and adjacent Oregon and Idaho, and is disjunct in northwestern Montana and British Columbia, Canada. This species is found predominantly in the Pacific Northwest bunchgrass grasslands and sagebrush-steppe, and occasionally in open-canopy pine stands. Occupied habitat includes five physiographic (physical geographic) regions: 1) the Palouse Grasslands in west-central Idaho and southeastern Washington; 2) the Channeled Scablands in east-central Washington; 3) the Blue Mountain Basins in northeastern Oregon; 4) the Canyon Grasslands along major river systems in Idaho, Oregon, and Washington; and 5) the Intermontane Valleys of northwestern Montana and British Columbia, Canada. Spalding’s catchfly produce one to several vegetative or flowering stems that arise from a simple or branched persistent underground stem (caudex), which surmounts a long, narrow taproot. Plants range from 20 to 40 cm in height. Each stem typically bears 4 to 7 pairs of simple, opposite leaves that are 5 to 8 cm in length and 2 to 4 cm in width. Similar to the majority of plants in this family, Spalding’s catchfly has distinctly swollen nodes located where the leaves are attached to the stem. Reproductive individuals produce 3 to 20 cream to pink or light green flowers that are borne in a branched, terminal inflorescence. All green portions of the plant (foliage, stem, and flower bracts) are covered in dense sticky hairs that frequently trap dust and insects, giving this species the common name ‘catchfly’. Plants (both vegetative and reproductive) emerge in mid-to late May. Flowering typically occurs from mid-July through August, but may occasionally continue into October. Rosettes are formed the first and possibly the second year, followed by the formation of vegetative stems. Above-ground vegetation dies back at the end of the growing season and plants either emerge in the spring or remain dormant below ground for one to several consecutive years. Spalding’s catchfly reproduces solely by seed. It lacks rhizomes or other means of reproducing vegetatively. Spalding’s catchfly was listed as threatened in 2001 and a final recovery plan for this plant was released October 15, 2007. The goal of the recovery plan is to recover the plant by protecting and maintaining reproducing, self-sustaining populations so that the species no longer needs protection under the Endangered Species Act.
- States/US Territories in which the Spalding's Catchfly is known to or is believed to occur: Idaho , Montana , Oregon , Washington
- US Counties in which the Spalding's Catchfly is known to or is believed to occur: View All
- USFWS Refuges in which the Spalding's Catchfly is known to occur:
Lost Trail National Wildlife Refuge, Turnbull National Wildlife Refuge
|Status||Date Listed||Lead Region||Where Listed|
|10/10/2001||Pacific Region (Region 1)|
» Federal Register Documents
|Date||Title||Plan Action Status||Plan Status|
|10/12/2007||Spalding's Catchfly Final Recovery Plan||View Implementation Progress||Final|
|Date||Citation Page||Title||Document Type|
|10/12/2007||72 FR 58111 58112||Recovery Plan for Silene spaldingii (Spalding's Catchfly)||
|03/16/2006||71 FR 13625 13626||Notice of Availability of the Draft Recovery Plan for Silene spaldingii (Spalding's Catchfly)||
|04/29/2008||73 FR 23264 23266||Initiation of 5-Year Status Reviews for 70 Species in Idaho, Montana, Oregon, Washington, and the Pacific Islands||
|02/12/2016||81 FR 7571||Endangered and Threatened Wildlife and Plants; Initiation of 5-Year Status Reviews of 76 Species in Hawaii, Oregon, Washington, Montana, and Idaho||
|01/30/2009||Spalding's catchfly completed 5 yr Review|
» Critical Habitat
No critical habitat rules have been published for the Spalding's Catchfly.
» Conservation Plans
|HCP Plan Summaries|
|Oregon DOT Statewide Routine Maintenance Activities HCP|
» Life History
No Life History information has been entered into this system for this species.
» Other Resources
NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.