Ipomopsis minutiflora - (Benth.) V. Grant
Small-flower Standing-cypress
Synonym(s): Microgilia minutiflora (Benth.) J.M. Porter & L.A. Johnson
Taxonomic Status: Accepted
Related ITIS Name(s): Ipomopsis minutiflora (Benth.) V. Grant (TSN 31214)
Unique Identifier: ELEMENT_GLOBAL.2.140907
Element Code: PDPLM060A0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Phlox Family
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Solanales Polemoniaceae Ipomopsis
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Concept Reference
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: Ipomopsis minutiflora
Conservation Status

NatureServe Status

Global Status: G4
Global Status Last Reviewed: 12Apr2005
Global Status Last Changed: 12Apr2005
Rounded Global Status: G4 - Apparently Secure
Reasons: A regional endemic of the Pacific Northwest (southern British Columbia, south to northern Oregon and east across the Snake River Plains of Idaho into central Montana). Undercollected because of late bloom time; probably more common than collections/occurrences would suggest. Threats thought to be low (possibly moderate) and trends stable.
Nation: United States
National Status: NNR
Nation: Canada
National Status: N3N4 (02May2016)

U.S. & Canada State/Province Status
United States Idaho (SNR), Montana (S1), Oregon (SNR), Washington (SNR)
Canada British Columbia (S3S4)

Other Statuses

NatureServe Global Conservation Status Factors

Area of Occupancy: Unknown 4-km2 grid cells
Area of Occupancy Comments:  

Number of Occurrences: 21 to >300

Number of Occurrences with Good Viability/Integrity: Some to very many (13 to >125)

Overall Threat Impact: Low
Overall Threat Impact Comments: Some threats from invasive species (cheat grass?). Road grading may threaten some plants but could create more habitat. Grazing and conversion to agriculture are general threats to rangeland areas and may have some effect.

Short-term Trend: Relatively Stable (<=10% change)

Intrinsic Vulnerability Comments: Disturbance dependent; ruderal.

Environmental Specificity: Moderate to broad.

Other NatureServe Conservation Status Information

U.S. States and Canadian Provinces
Color legend for Distribution Map

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

Range Map
No map available.

U.S. Distribution by County Help
State County Name (FIPS Code)
MT Ravalli (30081)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
17 Bitterroot (17010205)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
Basic Description: An annual herb, 1-5 dm tall, with multiply branched, erect stems. White, pink, or lavender flowers bloom late August - early September.
General Description: Small-flower Standing-cypress is an annual with a central stem that is 1-3 dm (4-12) tall, and with branches arising from most leaf axils. The alternate stem leaves are up to 3 cm long and are divided into 3 linear segments below, while above they are simple and linear with entire margins. Basal leaves are lacking. Foliage is glabrous to densely glandular. Small flowers are in the upper leaf axils or solitary at the tips of the numerous ultimate branches. The white or pale blue, tubular corolla is 4-7 mm long and flares to 5 lobes with 5 anthers held just beyond the mouth. The calyx is 5-lobed. The fruit is a rounded capsule with 1-3 seeds.
Diagnostic Characteristics: The plant superficially resembles EPILOBIUM PANICULATUM, but the latter has 4 separate petals. Our other species of IPOMOPSIS have basal rosettes.
Habitat Comments: Sparsely vegetated sandy embankments and along eroding banks and bluffs. Also on roadsides. Seems to be somewhat ruderal, prone to occur in areas with some disturbance, but also reported from thinly vegetated, undisturbed sagebrush flats.
Economic Attributes Not yet assessed
Management Summary Not yet assessed
Population/Occurrence Delineation Not yet assessed
Population/Occurrence Viability
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
NatureServe Conservation Status Factors Edition Date: 12Apr2005
NatureServe Conservation Status Factors Author: Western Regional Botanists

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).

  • Abrams, L. 1951. Illustrated flora of the Pacific states: Washington, Oregon, and California. Vol. 3. Geraniaceae to Scrophulariaceae. Stanford Univ. Press, Stanford, California. 866 pp.

  • Argus, G.W., and K.M. Pryer. 1990. Rare vascular plants in Canada. Our natural heritage. Canadian Museum Nature, Ottawa. 191 pp. + maps.

  • Booth, W.E., and J.C. Wright. 1966. Flora of Montana: Dicotyledons, Part II. Montana State Univ., Bozeman. 305 pp.

  • Davis, R.J. 1952. Flora of Idaho. Brigham Young Univ. Press, Provo, UT. 836 pp.

  • 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.

  • 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.

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

  • Porter, J.M., L.A. Johnson, and D. Wilken. 2010. Phylogenetic systematics of Ipomopsis (Polemoniaceae): Relationships and divergence times estimated from chloroplast and nuclear DNA sequences. Systematic Botany 35(1):181-200.

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