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Montana Field Guide

Montana Field Guides

Fleshy Stitchwort - Stellaria crassifolia

Species of Concern

Global Rank: G5
State Rank: S2
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

External Links






State Rank Reason (see State Rank above)
Rare in Montana where it is known from a few sparsely distributed locations that are mostly poorly documented.
  • Details on Status Ranking and Review
    Fleshy Stitchwort (Stellaria crassifolia) Conservation Status Review
    Review Date = 05/29/2012
    View State Conservation Rank Criteria
    Population Size

    Score2-3 - Very Small to Small: Population size is imprecisely known but is believed to be <10,000 individuals.

    CommentPopulation size unknown, though likely to be in the very small to small range based upon the limited data available.

    Range Extent

    Score1 - Peripheral, Disjunct or Sporadic Distribution in MT: Widespread species that is peripheral, disjunct or sporadically distributed within MT such that it occurs in <5% of the state (<7,500 sq. miles or the combined area of Beaverhead and Ravalli Counties) or is restricted to 4-5 sub-basins.

    Area of Occupancy

    Score3 - Very Low: Generally occurring in 3 or fewer Subwatersheds (6th Code HUC’s).

    Environmental Specificity

    Score1-2 - Moderate to High.

    Trends

    ScoreNA - Rank factor not assessed.

    CommentTrends are unknown.

    Threats

    Score2 - High: 31-70% of the populations are being negatively impacted or are likely to be impacted by one or more activities or agents, which are expected to result in decreased populations and/or habitat quality and/or quantity.

    Intrinsic Vulnerability

    Score1 - Moderate Vulnerability: Specific biological attributes, unusual life history characteristics or limited reproductive potential makes the species susceptible to extirpation from stochastic events or other adverse impacts to its habitat and slow to recover.

    Raw Conservation Status Score

    Score 10-12 total points scored out of a possible 16 (Rarity factors and threats only).

 
General Description
Fleshy Stichwort is a glabrous perennial herb with numerous, often matted, ascending to nearly prostrate stems that are 5-15 cm long and arising from slender roots. The opposite, narrowly lance-shaped leaves are 5-10 mm long, lack petioles, and have entire margins. Solitary flowers are borne on long spreading stalks in the upper leaf axils. The 5 separate, lance-shaped sepals are 2-3 mm long and have membranous margins. The 5 white, deeply bilobed petals are slightly longer. The fruit is a narrowly egg-shaped capsule that is 1-2 mm longer than the sepals at maturity.

Phenology
Flowering in August, mature fruit in August-September.

Diagnostic Characteristics
The more common S. longipes has stiff leaves and sepals greater than 3 mm long. Stellaria calycantha and S. umbellata have petals, if present, that are shorter than the sepals. A hand lens will likely be needed for identification.

Species Range
Present
 


Range Comments
Circumboreal, south in western North America to MT, ID, and CO. Sparse.

Summary of Observations Submitted for Montana
Number of Observations: 4

(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
Moist or wet meadows, often along streams, in the foothills to alpine zones.

References
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Citation for data on this website:
Fleshy Stitchwort — Stellaria crassifolia.  Montana Field Guide.  .  Retrieved on , from