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Montana Field Guide

Montana Field Guides

Clammy Hedge-hyssop - Gratiola neglecta

Native Species

Global Rank: G5
State Rank: S4
(see State Rank Reason below)

Agency Status
MNPS Threat Rank:
C-value: 8

External Links

State Rank Reason (see State Rank above)
Gratiola neglecta is widely distributed across Montana, appearing uncommon, but likely overlooked either because of its small stature or because it senesces quickly.
  • Details on Status Ranking and Review
    Clammy Hedge-hyssop (Gratiola neglecta) Conservation Status Review
    Review Date = 08/30/2017
    View State Conservation Rank Criteria
    Range Extent

    ScoreF - 20,000-200,000 sq km (~8,000-80,000 sq mi)

    Area of Occupancy

    ScoreE - 26-125 4-km2 grid cells

    Number of Populations

    ScoreC - 21 - 80

    Number of Occurrences or Percent Area with Good Viability / Ecological Integrity

    ScoreC - Few (4-12) occurrences with excellent or good viability or ecological integrity

    Environmental Specificity

    ScoreB - Narrow. Specialist or community with key requirements common


    ScoreD - Low

    CommentThreat categories include: Livestock farming & ranching.

General Description
Stems ascending to erect, 4–25 cm, fistulose below. Herbage glabrate to glandular-puberulent. Leaves lanceolate to oblanceolate, 1–3 cm long. Flowers: calyx 2–6 mm long, glandular, subtended by 2 sepal-like bracts; corolla 6–13 mm long, white to pale blue with a yellow tube. Capsule 4–6 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
BC to QC south to CA, AZ, TX, MS and GA (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 35

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



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

Drying mud along ponds, streams, rivers; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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Citation for data on this website:
Clammy Hedge-hyssop — Gratiola neglecta.  Montana Field Guide.  .  Retrieved on , from