Micranthes integrifolia

Scientific classification
Kingdom:	Plantae;
Subkingdom:	Viridiplantae;
Phylum:	Tracheophyta;
Subphylum:	Spermatophytina;
Class:	Magnoliopsida;
Subclass:	Saxifraganae;
Order:	Saxifragales;
Family:	Saxifragaceae;
Genus:	Micranthes Haw.;
Species:	Micranthes integrifolia (Hook.) Small;

Scientific Name: Micranthes integrifolia
Family: Saxifragaceae
Common Names: Columbian saxifrage, swamp saxifrage, whole-leaf saxifrage
Synonyms/Misapplications: Saxifraga integrifolia, Saxifraga laevicarpa
Codon: MICINT

Photo by Rod Gilbert, also featured on Main Page

The inflorescence is a short, compact panicle, subtended by a leafy, rusty-woolly bracts. The calyx is broadly conic, the 5 lobes oblong-lanceolate, 1-2 mm. long and reflexed. Individual flowers have 5 white, obovate petals, 1.5-3 mm. long, at least half as broad as long. Stamens number 10 and are short, awl-shaped.^[3]

Ovaries are green and can turn red as fruit attached.^[2]

Bloom Period

Late March - July^[3]

Distribution

West side of the Cascades, British Columbia to Lincoln County, Oregon, and in the Columbia River Gorge^[3]

Habitat

Prairies, grassy slopes and vernally moist areas, sea level to subalpine^[3]

Swamp saxifrage prefers moister areas in prairies, such as near a stream or at the base of a tree.^[2]

Uses

Used ornamentally in rock gardens

Propagation

Can be propagated by seed, division or cuttings.
Seed should be planted in winter and barely covered. Germination takes place in 1 to 3 months at 16-21°C
Division should be done after flowering.
Cuttings in should be taken in late summer.^[4]

Seed

Average Measurement: 0.8 x 0.4 x 0.3

Measurement Range: L: 0.6 – 0.8, W: 0.2 – 0.5, D: 0.2 – 0.4

Features

Shape: Seed narrowed at hilum and opposite apex, forming points. Middle between hilum and opposite apex rounded. Hilum is puckered.

Color: Seeds golden brown, and slightly darker at hilum.

Surface: Seeds bumpy and longitudinally ridged. Seeds are slightly lustrous.

Latitudinal Cross Section: elliptical

Photo Gallery

photo by Ben Legler
photo by Ben Legler

References

↑ Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=895012
↑ ^2.0 ^2.1 ^2.2 Bowcutt, F., & Hamman, Sarah. (2016). Vascular plants of the South Sound prairies (First ed.). Olympia, Washington: The Evergreen State College Press.
↑ ^3.0 ^3.1 ^3.2 ^3.3 http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Saxifraga&Species=integrifolia Burke Museum University of Washington
↑ http://www.kadel.cz/flora/e/kvCard.asp-Id=5519.htm Rock Garden Plant Database

[1] Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=895012

[:0-2] 2.0 ^2.1 ^2.2 Bowcutt, F., & Hamman, Sarah. (2016). Vascular plants of the South Sound prairies (First ed.). Olympia, Washington: The Evergreen State College Press.

[Burke-3] 3.0 ^3.1 ^3.2 ^3.3 http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Saxifraga&Species=integrifolia Burke Museum University of Washington

[4] ttp://www.kadel.cz/flora/e/kvCard.asp-Id=5519.htm Rock Garden Plant Database

[1]

[2]

[3]

[4]