Phacelia minutissima - Henderson
Tiny-flower Phacelia
Other English Common Names: Small Phacelia
Other Common Names: small phacelia
Taxonomic Status: Accepted
Related ITIS Name(s): Phacelia minutissima Henderson (TSN 31549)
Unique Identifier: ELEMENT_GLOBAL.2.138232
Element Code: PDHYD0C300
Informal Taxonomy: Plants, Vascular - Flowering Plants - Waterleaf Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Solanales Hydrophyllaceae Phacelia
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Phacelia minutissima
Conservation Status
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NatureServe Status

Global Status: G3
Global Status Last Reviewed: 17Dec1997
Global Status Last Changed: 13May1996
Rounded Global Status: G3 - Vulnerable
Reasons: Phacelia minutissima may be extant in a few places in Washington. It was recently (1996) relocated in Wallowa County, Oregon and, during the 1995 field season, 30 new populations were found in Nevada and Idaho, many very large.
Nation: United States
National Status: N3

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Idaho (S2), Nevada (S2), Oregon (S1), Washington (S1)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Pacific Northwest.

Number of Occurrences: 21 - 80
Number of Occurrences Comments: 1995 surveys in northern Nevada and adjacent southwestern Idaho found 30 new populations.

Population Size Comments: Many of the populations found in 1995 are very large.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Pacific Northwest.

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States ID, NV, OR, WA

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
ID Camas (16025)*, Owyhee (16073)
NV Elko (32007), Eureka (32011)
OR Baker (41001), Grant (41023), Harney (41025), Union (41061), Wallowa (41063)
WA Kittitas (53037)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
16 North Fork Humboldt (16040102)+, Pine (16040104)+, Diamond-Monitor Valleys (16060005)+
17 Upper Yakima (17030001)+, Big Wood (17040219)+*, Camas (17040220)+*, Bruneau (17050102)+, Middle Snake-Succor (17050103)+, Upper Owyhee (17050104)+, South Fork Owyhee (17050105)+, Middle Owyhee (17050107)+, Jordan (17050108)+, Brownlee Reservoir (17050201)+, Powder (17050203)+, Imnaha (17060102)+, Upper Grande Ronde (17060104)+, Upper John Day (17070201)+, Middle Fork John Day (17070203)+, Harney-Malheur Lakes (17120001)+, Silvies (17120002)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A small annual herb, 2-6 cm high, that produces pale blue, tubular flowers in July.
Habitat Comments: Moderate elevations in the mountains. Damp ground such as in meadows and along streambanks. Under shrubs and trees.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 23Jul1995
NatureServe Conservation Status Factors Author: Morse, Larry E. (1995), rev. G. Thunhorst (1996), rev. D. Gries (1997)

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Atwood, D. 1995. Inventory for least phacelia (Phacelia minutissima), a Federal Category 2 species. Final Report for Challenge Cost Share Project submitted to Bureau of Land Management, Boise District Office. 19 pp. plus appendices.

  • Atwood, N. D. 1996. Final report for challenge cost share project inventory for least phacelia (Phacelia minutissima) a Bureau of Land Management special status plant. Boise, Idaho: Bureau of Land Management.

  • Cronquist, A., A. H. Holmgren, N. H. Holmgren, J. L. Reveal, and P. K. Holmgren. 1984. Intermountain flora vol. 4. Subclass Asteridae (except Asteraceae). Bronx: The New York Botanical Garden. 573 pp.

  • Curto, M. and F.J. Smith. 1996. Initiation of a long-term least phacelia (Phacelia minutissima) census within the Humboldt National Forest, Elko County, NV. Elko, Nevada: U.S. Department of Agriculture, Humboldt-Toiyabe National Forest.

  • Frank, C.A., and Greystone. 1998. Sensitive plant surveys: Independence Mining Company Inc., Elko County, Nevada, July 1997. Greenwood Village, Colorado: Greystone, prepared for Independence Mining Company, Inc., Elko, Nevada.

  • Henderson, L.F. 1900. New plants from Idaho and from other localities of the Northwest. Bulletin of the Torrey Botanical Club 27: 342-359.

  • Hitchcock, C.L., A. Cronquist, M. Ownbey, and J.W. Thompson. 1959. Vascular plants of the Pacific Northwest. Part 4: Ericaceae through Campanulaceae, by C.L. Hitchcock, A. Cronquist, and M. Ownbey. Univ. Washington Press, Seattle. 510 pp.

  • Hitchcock, C.L., and A. Cronquist. 1973. Flora of the Pacific Northwest: An Illustrated Manual. University of Washington Press, Seattle, Washington. 730 pp.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Moseley, R. K. 1995. Conservation status of least phacelia (Phacelia minutissima). Boise: Idaho Conservation Data Center, Department of Fish and Game, prepared for the Bureau of Land Management, Boise District. 16 pp. plus appendices.

  • Moseley, R. K. 1995a. Conservation status of least phacelia (Phacelia minutissima). Cooperative project between Boise District BLM and Conservation Data Center, Idaho Department of Fish and Game. 16 pp. plus appendices.

  • Nevada Natural Heritage Program. 1986-present. Slide collection files. Carson City.

  • Nevada Natural Heritage Program. 1998-present. Index to available images (web page). Carson City: Nevada Natural Heritage Program public web site, http://heritage.nv.gov/images.htm.

  • Peck, M.E. 1961. A manual of the higher plants of Oregon. 2nd edition. Binsford & Mort, Portland, Oregon. 936 pp.

  • Rosentreter, R. 1986. Sensitive and uncommon plants in the Boise District Bureau of Land Management. Bureau of Land Management, Idaho State Office, Technical Bull., Boise, ID. 87 pp.

  • Smith, F. J. and M. Curto. 1995. Humboldt National Forest Mountain City & Jarbidge districts sensitive plant survey 1995. Elko, Nevada: U.S.D.A., Humboldt-Toiyabe National Forest.

  • Smith, F. J., and M. Curto. 1995. Humboldt National Forest: Mountain City and Jarbidge Districts sensitive plant survey. Unpublished report prepared for USDA Forest Service, Humboldt-Toiyabe National Forest, Elko, NV. 105 pp.

  • Steele, B., F. Johnson, and S. Brunsfield, eds. 1981. Vascular plant species of concern in Idaho. Forest, Wildlife and Range Experiment Station, Moscow, ID. 161 pp.

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