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Castilleja collegiorum

J.M. Egger & S. Malaby

Collegial Paintbrush

G1Critically Imperiled Found in 2 roadless areas NatureServe Explorer →
G1Critically ImperiledGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.951203
Element CodePDSCR0D4H0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderScrophulariales
FamilyOrobanchaceae
GenusCastilleja
Concept Reference
Egger, J.M. and S. Malaby. 2015. Castilleja collegiorum (Orobanchaceae), a new species from the Cascade Mountains of southern Oregon, and the status of Castilleja lassenensis Eastw. Phytoneuron 33: 1-13.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2015-08-17
Change Date2015-08-17
Edition Date2015-08-17
Edition AuthorsTomaino, A.
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank Reasons
Known only from a single population in a wet meadow in southwestern, Oregon.
Range Extent Comments
Cascade Mountains, southwestern Oregon (Egger and Malaby 2015).
Threat Impact Comments
"Because Castilleja collegiorum appears to have specific hydrologic requirements, long-term droughts and other effects associated with global and regional climate change may adversely affect this species. Future changes in land use management are not anticipated, but increased recreational
use or disturbance from off-road vehicles could potentially result in adverse effects on this species." (Egger and Malaby 2015). Tire tracks and ruts were observed in areas occupied by C. collegiorum in July 2014 (Egger and Malaby 2015).
Ecology & Habitat

Habitat

Seasonally wet meadow. "The meadow is dominated by tufted hairgrass, sedges, and rushes, but in areas where Castilleja collegiorum is found, there is a diversity of low-growing forb species and scattered Vaccinium uliginosum. Pinus contorta forest surrounds the meadow. Associated species include Potentilla breweri, Oreostemma alpigenum var. andersonii, Deschampsia cespitosa, Muhlenbergia filiformis, Danthonia californica, Danthonia intermedia, Erythranthe primuloides, Pedicularis attollens,Polygonum bistortoides, Vaccinium uliginosum, Trifolium longipes, Gentiana newberryi, Ranunculus alismifolius, Carex nebrascensis, Carex capitata, Carex simulata, Carex pachystachya, Carex buxbaumii, Juncus balticus, Carex luzulina, and Pyrrocoma sp." (Egger and Malaby 2015).
Terrestrial Habitats
Forest/WoodlandForest - Conifer
Palustrine Habitats
HERBACEOUS WETLANDBog/fen
Other Nations (1)
United StatesN1
ProvinceRankNative
OregonS1Yes
Threat Assessments
ThreatScopeSeverityTiming
6 - Human intrusions & disturbance———
6.1 - Recreational activities———
11 - Climate change & severe weather———
11.2 - Droughts———

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Plant Characteristics
Economic Value (Genus)No
Roadless Areas (2)
Oregon (2)
AreaForestAcres
Sky Lakes AWinema National Forest3,940
Sky Lakes BWinema National Forest9,615
References (2)
  1. Egger, J.M. and S. Malaby. 2015. <i>Castilleja collegiorum </i>(Orobanchaceae), a new species from the Cascade Mountains of southern Oregon, and the status of <i>Castilleja lassenensis </i>Eastw. Phytoneuron 33: 1-13.
  2. Flora of North America Editorial Committee (FNA). 2019. Flora of North America north of Mexico. Vol. 17: Magnoliophyta: Tetrachondraceae to Orobanchaceae. Oxford Univ. Press, New York. xxiv + 737 pp.