Species Details

Collomia rawsoniana

Rawson's flaming trumpet

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Species Description:

Collomia rawsoniana, commonly known as Rawson's flaming trumpet, is a perennial rhizomatous herb in the Polemoniaceae that is found only in California. It occurs within Lower montane coniferous forest, Meadows and seeps, and Riparian forest, growing at elevations from 780 to 2200 meters. Collomia rawsoniana is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Collomia rawsoniana Greene
Common Name: Rawson's flaming trumpet
Family:	Polemoniaceae
Element Code:	PDPLM02080
USDA Plants Symbol:	CORA3
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	SB_SBBG; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Jul-Aug

Elevation:
780 - 2200 meters
2560 - 7220 feet

General Habitats:

Lower montane coniferous forest
Meadows and seeps
Riparian forest

Microhabitat Details:

Microhabitat:

Mesic

Notes

Notes: Potentially threatened by hydroelectric development, grazing, logging, and foot traffic. Interagency agreement has been established between USFWS and USFS, and Sierra NF has adopted species management guidelines. See Pittonia 1:221 (1888) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	11
	Total EOs	% of EOs
EOs with Threat Listed:	18	75 %
Logging	10	41%
Recreational use (non-ORV)	5	20%
Foot traffic/trampling	4	16%
Grazing	4	16%
Development	3	12%
Altered flood/tidal/hydrologic regime	2	8%
Other	2	8%
Road/trail construction/maint.	2	8%
Dam/Inundation	2	8%
Biocides	1	4%
Erosion/runoff	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					24
A	B	C	D	X	U
2	5	1	0	0	16

Occurrence Status:
Historical >20 Years	19
Recent <=20 Years	5

Presence:
Presumed Extant	24
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Madera (MAD)

Quads: Name (Quad Code)
Bass Lake (3711935), Cascadel Point (3711924), Little Shuteye Peak (3711944), Mammoth Pool Dam (3711933), Musick Mtn. (3711923), Shuteye Peak (3711934), White Chief Mtn. (3711945)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory