Northern Golden-carpet - Chrysosplenium tetrandrum
* (see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
See rank details.
- Details on Status Ranking and Review
Score1 - Moderate: Generally 10,000-100,000 individuals.
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
Score1 - Moderate: Generally occurring in 11-25 Subwatersheds (6th Code HUC’s).
Score1 - Moderate: Species is restricted to a specific habitat that is more widely distributed or to several restricted habitats and is typically dependent upon relatively unaltered, good-quality habitat (C Values of 5-7).
Score0-1 - Stable to Minor Declines:
Score0-1 - Low to Medium.
Score0-1 - Low to Moderate Vulnerability.
Raw Conservation Status Score
4 to 7 total points scored out of a possible 19.
Northern Golden-carpet is a small, creeping perennial, with braching stems up to 15 cm long that root at the nodes and are erect at the tips. The alternate leaves are chiefly clustered at the base or near the tip of the stems. Leaves are oval or kidney-shaped and 5-10 mm broad, with petioles up to 2 cm long and deep scalloping on the margins; the herbage is glabrous. The small flowers are borne in loose, few-flowered clusters at the ends of the stems; they lack petals, but have 4 green sepals that are approximately 1 mm long. The fruit is a two-lobed capsule that is partially embedded in the calyx cup.
Flowering in June-August; fruiting in August.
The stoloniferous habit and small, apetalous flowers set this species apart from other Saxifrages in its habitat.
Circumpolar, south in North America to BC, WA, and CO. Peripheral.
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Seeps, wet rock ledges, and stream banks in the montane zone.
- Additional ReferencesLegend: View Online Publication
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- Bohm, B.A., F.W. Collins, and R. Bose. 1977. Flavonoids of Chrysosplenium tetrandrum. Phytochemistry 16:1205-1209.
- Kratz, A.M. 1989. Chrysosplenium tetrandrum: summary of 1989 fieldwork for USFS Region 1.
- Leck, M. A. 1980. Germination in Barrow, Alaska, tundra soil cores. Arctic and Alpine Research 12(3):343-349.
- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.