Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Yellow-staining Collomia - Collomia tinctoria

Potential Species of Concern

Global Rank: G5
State Rank: SH
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

External Links






State Rank Reason (see State Rank above)
Has not been collected in Montana for over 100 years.
 
General Description
Yellow-staining Collomia is an annual with branched stems reaching up to 15 cm high. The alternate, linear leaves are 1-5 cm long with entire margins. Foliage is glandular and hairy. 2-5 short-stalked flowers are clustered in the leaf axils or where branches the diverge. The pink or lavender, tubular corolla is 8-14 mm long and flares into 5 lobes. The calyx tube is expanded where it flares into 5 triangular lobes. The 5 stamens are of different lengths and attached to the corolla tube. The fruit is a globose capsule.

Phenology
Flowering June-August.

Diagnostic Characteristics
Collomia linearis has flowers that are clustered near the branch tips. Microsteris gracilis has a white or yellowish corolla tube, and the calyx is glandular and hairy.

Species Range
Present
 


Range Comments
Central WA to CA, east to MT, southeaster OR and western NV. Peripheral.

Summary of Observations Submitted for Montana
Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Dry grasslands and rocky, open slopes from the valley to montane zones.

Ecological Systems Associated with this Species

References
Login Logout
Citation for data on this website:
Yellow-staining Collomia — Collomia tinctoria.  Montana Field Guide.  .  Retrieved on , from