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Rocky Mountain Navarretia - Navarretia saximontana
Native Species
Global Rank:
G4?
State Rank:
S3S4
(see State Rank Reason below)
C-value:
4
Agency Status
USFWS:
USFS:
BLM:
External Links
State Rank Reason (see State Rank above)
Navarretia saximontana occurs in north-central and eastern Montana. Plants grow on mud in drying wetlands, coulees, swales, and ponds. Populations can be locally common and threats have not been identified. Current information on locations, population sizes, habitat, responses to disturbance, and threats is needed.
- Details on Status Ranking and Review
Range Extent
ScoreF - 20,000-200,000 sq km (~8,000-80,000 sq mi)
Comment148,809 square kilometers
Area of Occupancy
ScoreD - 6-25 4-km2 grid cells
CommentPlant occurs in 22 of the 30,590 4x4 square-kilometer grid cells that cover Montana.
Number of Populations
ScoreC - 21 - 80
Comment22 occurrences
Number of Occurrences or Percent Area with Good Viability / Ecological Integrity
ScoreC - Few (4-12) occurrences with excellent or good viability or ecological integrity
Comment5 occurrences are assumed to be of good viability based on comments of 'common' or 'fairly abundant'.
Environmental Specificity
ScoreB - Narrow. Specialist or community with key requirements common
CommentNavarretia saximontana occurs on drying mud along wetlands and other water bodies.
Threats
ScoreD - Low
General Description
Stems erect, 2–15 cm, simple or branched; the branches prostrate to ascending. Herbage glabrate, stems puberulent. Leaves 5–10 mm long with 5 to 7 primary lobes on the upper leaf. Flowers: calyx 6–9 mm long, the lobes villous; corolla pale blue, shorter than the calyx, tube ca. 4 mm long, lobes ca. 2 mm long; style ca. 3 mm long; stamens ca. as long as the tube. Capsule 2–3 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Range Comments
ID to SK south to AZ, UT, CO; mainly east of the Rocky Mtns (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 22
(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
References
- Literature Cited AboveLegend:
View Online Publication- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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