BC Conservation Data Centre: Species Summary
Lathrocasis tenerrima
slender gilia
| Scientific Name: | Lathrocasis tenerrima (Gray) L.A. Johnson | ||||||||||
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| Scientific Name Synonyms: |
Gilia tenerrima
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| English Name: | slender gilia | ||||||||||
| Classification / Taxonomy | |||||||||||
| Scientific Name - 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. | ||||||||||
| Classification Level: | Species | ||||||||||
| Taxonomy Comments: | SNAME changed to Lathrocasis tenerrima in Nov. 2009. | ||||||||||
| Species Group: | Vascular Plant | ||||||||||
| Species Code: | LATHTEN | ||||||||||
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| Conservation Status / Legal Designation | |||||||||||
| Global Status: | G4 (Aug 2023) | ||||||||||
| Provincial Status: | S2S3 (Apr 2019) | ||||||||||
| BC List: | Blue | ||||||||||
| Provincial FRPA list: | |||||||||||
| Provincial Wildlife Act: | |||||||||||
| COSEWIC Status: | |||||||||||
| SARA Schedule: | |||||||||||
| General Status Canada: | 2 - May be at risk (2010) | ||||||||||
| Ecology & Life History | |||||||||||
| General Description: | |||||||||||
| Technical Description: | |||||||||||
| Similar Species: | |||||||||||
| Habitats: (Type / Subtype / Dependence) |
Forest / Conifer Forest - Dry / Facultative - frequent use
Grassland/Shrub / Sagebrush Steppe / Facultative - frequent use |
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| Global Habitat Comments: | This species occurs on gravelly slopes, dry barren hills, sandy sagebrush scrub, and to a lesser extent in pinyon-juniper, and on aspen - conifer sites , generally at elevations of 1524 to 2743 meters (5000 - 9000 feet), but it has been collected as low as 1127 meters and as high as 2987 meters (Ackerfield 2015, Johnson and Weese 2000). | ||||||||||
| Provincial Phenology: (1st half of month/ 2nd half of month) |
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| Elevation (m) (min / max): | Provincial: | ||||||||||
| Known Pests: | |||||||||||
| Pollen Vector: | |||||||||||
| Pollinator: | |||||||||||
| Dispersal: | |||||||||||
| Provincial Inventory | |||||||||||
| Inventory Priority: | |||||||||||
| Ownership of occurrences (Known locations): | |||||||||||
| Inventory Need: | |||||||||||
| Economic Attributes | |||||||||||
| Distribution | |||||||||||
| Endemic: | N | ||||||||||
| Global Range Comment: | Gilia tenerrima occurs in the western United States and southwestern Canada in the Great Basin and Rocky Mountains, from southern British Columbia and Washington to Nevada, northwestern Colorado, western Wyoming and western Montana. Range extent was estimated to be 915,000 square kilometers using herbarium specimens and photo-based observations documented between 1992 and 2023 (GBIF 2023, iNaturalist 2023, Johnson and Weese 2000, SEINet 2023). | ||||||||||
| Disjunct, more common elsewhere: | |||||||||||
| Peripheral, major distribution elsewhere: | |||||||||||
| Authors / Contributors | |||||||||||
| Global Information Author: | Nordman, C. (2023). | ||||||||||
| Last Updated: | Aug 25, 2023 | ||||||||||
| Provincial Information Author: | |||||||||||
| Last Updated: | |||||||||||
| Last Literature Search: | |||||||||||
| References and Related Literature | |||||||||||
Ackerfield, J. 2015. Flora of Colorado. Botanical Research Institute of Texas, Fort Worth, TX. 818 pp. |
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Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. 358pp. |
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Douglas, G.W., D. Meidinger, and J. Pojar, eds. 1999. Illustrated Flora of British Columbia, Vol. 4, Dicotyledons (Orobanchaceae through Rubiaceae). B.C. Minist. Environ., Lands and Parks, and B.C. Minist. For., Victoria. 427pp. |
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Johnson, L.A. and T.L. Weese. 2000. Geographic distribution, morphological and molecular characterization, and relationships of Lathrocasis tenerrima (Polemoniaceae). Western North American Naturalist 60(4):355-373. Online. Available: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1178&context=wnan (accessed 2023). |
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Please visit the website Conservation Status Ranks for definitions of the data fields used in this summary report.
Suggested Citation:
B.C. Conservation Data Centre. 2023. Species Summary: Lathrocasis tenerrima. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 4, 2026).