Identity
Unique IDELEMENT_GLOBAL.2.128126
Element CodePDMAL0K040
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderMalvales
FamilyMalvaceae
GenusIliamna
Concept ReferenceKartesz, 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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2020-08-25
Change Date1999-10-06
Edition Date2020-05-15
Edition AuthorsMaybury, K. (2003), rev. Treher (2018), rev. L. Oliver (2020)
Threat ImpactMedium
Range Extent5000-20,000 square km (about 2000-8000 square miles)
Number of Occurrences81 - 300
Rank ReasonsIliamna latibracteata occurs in northwestern California and southwestern Oregon, growing in moist, often shaded, places such as stream sides in coniferous forests. There are nearly 80 occurrences rangewide. Most sites have multiple threats. The habitat description for this species says the species occurs in shade but it is possible that it prefers some openings in the canopy. More research is needed into this specific habitat needs and how disturbances, like fire, may benefit the species.
Range Extent CommentsIliamna latibracteata occurs in California and southern Oregon (FNA 2015).
Occurrences CommentsThere are twenty extant occurrences in California and fifty-six in Oregon.
Threat Impact CommentsThreats to this species include road maintenance, grazing, logging, weeds, trampling, clearing, and recreational uses. These threats are considered 'High' in California. One site is impacted by weevils that destroy the blossoms of the plants. Succession is also a threat to the species. Fire is listed as a threat for many sites, but it may be beneficial to the species, in part because it opens up the canopy. Research is needed to determine if and how fire can best benefit the species.