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Brodiaea terrestris

Kellogg

Dwarf Brodiaea

G5Secure Found in 14 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.151120
Element CodePMLIL0C0F0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderAsparagales
FamilyAsparagaceae
GenusBrodiaea
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.
Taxonomic Comments
Comprised of two subspecies (Kartesz 1999; Hickman 1993).
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-07-30
Change Date2024-07-30
Edition Date2024-07-30
Edition AuthorsN. Ventrella (2024)
Threat ImpactUnknown
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
Brodiaea terrestris is a perennial monocot occurring in coastal prairies, grasslands, foothill woodlands, in pine and mixed evergreen forests of western North America in California and Oregon in the United States. There are over 400 estimated occurrences of this species, which are potentially threatened by development, road maintenance, invasive species, wildfire, succession, and other threats in some places. With a large range extent, high number of occurrences, abundant habitat, broad habitat preferences, and no obvious intrinsic vulnerabilities, this species is considered secure.
Range Extent Comments
Brodiaea terrestris occurs in western North America in California and Oregon in the United States. Range extent was estimated to be over 350,000 square kilometers using herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1993 and 2024 (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024). See individual entries for distribution details about the two subspecies.
Occurrences Comments
By applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1993 and 2024, it is estimated that there are more than 400 occurrences rangewide (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact Comments
Although threats are not widely documented, Brodiaea terrestris is potentially threatened by development, rights-of-way maintenance, invasive species, wildfire, succession, and other threats in some places. However, their overall impact is likely negligible given the species' broad range, large number of occurrences, tolerance of light disturbance, and affinity for typically abundant habitats, as well as no obvious intrinsic vulnerabilities.
Ecology & Habitat

Habitat

Brodiaea terrestris occurs in grasslands, coastal prairies, open foothill woodlands, and in pine and in mixed evergreen forests (FNA 2002, Calflora 2022).
Terrestrial Habitats
Forest/WoodlandForest - ConiferForest - MixedGrassland/herbaceous
Other Nations (1)
United StatesN5
ProvinceRankNative
CaliforniaSNRYes
OregonS2Yes
Threat Assessments
ThreatScopeSeverityTiming
Unknown/undetermined———

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (14)
California (14)
AreaForestAcres
Barker ValleyCleveland National Forest11,940
Black Mtn.Sequoia National Forest15,102
ChannellSequoia National Forest45,429
ChicoSequoia National Forest39,836
ColdwaterCleveland National Forest8,402
De La GuerraLos Padres National Forest5,418
Dennison PeakSequoia National Forest6,293
Greenhorn CreekSequoia National Forest28,226
Mill CreekSequoia National Forest27,643
MosesSequoia National Forest22,077
RinconSequoia National Forest54,610
Sill HillCleveland National Forest5,294
TrabucoCleveland National Forest23,341
WildhorseCleveland National Forest1,483
References (7)
  1. Calflora. 2022. <i>Brodiaea terrestris</i>: The Calflora Database. Berkeley, California. Accessed: September 7, 2022. https://www.calflora.org/app/taxon?crn=1186
  2. Flora of North America Editorial Committee (FNA). 2002a. Flora of North America north of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.
  3. Global Biodiversity Information Facility (GBIF). 2024. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2024).
  4. iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
  5. 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.
  6. NatureServe. 2024. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  7. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).