The Genus Saxifraga
Rusty-hair Saxifrage, Rusty-haired Saxifrage: Saxifraga aequidentata (Synonyms: Micranthes rufidula, Saxifraga occidentalis var. aequidentata, Saxifraga occidentalis ssp. rufidula, Saxifraga occidentalis var. rufidula, Saxifraga rufidula) -
Sierra Saxifrage: Saxifraga aprica (Synonym: Micranthes aprica) -
Matted Saxifrage, Spotted Saxifrage: Saxifraga bronchialis var. austromontana (Synonyms: Ciliaria austromontana, Saxifraga austromontana, Saxifraga bronchialis ssp. austromontana) - Low growing mat or cushion forming plant. Leaves linear and pointed. Leaves both on basal stems and flowering stems. Petals spotted with red-purple dots at the tip, yellow-orange spots near the base.
Matted Saxifrage, Spotted Saxifrage, Yellowdot Saxifrage: Saxifraga bronchialis var. vespertina (Synonyms: Ciliaria vespertina, Saxifraga bronchialis ssp. vespertina) - Low growing mat or cushion forming plant. Leaves oblong to spatulate, only occasionally 3-lobed at the tips, otherwise, the tips are rounded. Petals spotted with red-purple dots at the tip, yellow-orange spots near the base.
California Saxifrage: Saxifraga californica (Synonyms: Micranthes californica, Saxifraga fallax, Saxifraga parvifolia) -
Hybrid Saxifrage: Saxifraga californica x integrifolia -
Tufted Alpine Saxifrage, Tufted Saxifrage: Saxifraga cespitosa (Synonyms: Saxifraga caespitosa var. emarginata, Saxifraga caespitosa ssp. caespitosa, Saxifraga caespitosa var. subgemmifera, Saxifraga caespitosa ssp. subgemmifera, Saxifraga cespitosa var. cespitosa, Saxifraga cespitosa ssp. cespitosa, Saxifraga cespitosa var. subgemmifera, Saxifraga cespitosa ssp. subgemmifera) -
Tufted Saxifrage: Saxifraga caespitosa var. emarginata - Low growing mat or cushion forming plant. Leaves narrowly lanceolate with 3 (sometimes 5) lobes at the tip. Flowers white with fairly large, rounded petals. No markings on petals.
Tufted Saxifrage: Saxifraga caespitosa var. subgemmifera - Low growing mat or cushion forming plant. Leaves narrowly lanceolate with 3 (sometimes 5) lobes at the tip. Flowers white with fairly large, rounded petals. No markings on petals.
Rusty Saxifrage, Vreeland's Rusty Saxifrage, Alaska Saxifrage: Saxifraga ferruginea (Synonyms: Micranthes ferruginea, Saxifraga ferruginea var. ferrnuginea, Saxifraga ferruginea var. macounii, Saxifraga ferruginea var. vreelandii) - Leaves basal, oblanceolate wit 3-4 pairs of teeth at the tip. Inflorescence an open, spreading panicle. White flowers have 3 larger petals with 2 yellow-orange spots near the base and 2 smaller petals with out markings.
Gorman's Saxifrage: Saxifraga gormanii (Synonyms: Saxifraga gormanii, Saxifraga occidentalis var. dentata) -
Saddle Mountain Saxifrage, Hitchcock's Saxifrage: Saxifraga hitchcockiana (Synonyms: Micranthes hitchcockiana, Saxifraga latipetiolata, Saxifraga occidentalis var. latipetiolata) -
Howell's Saxifrage: Saxifraga howellii (Synonym: Saxifraga howellii) -
Common Western Saxifrage, Northwestern Saxifrage, Wholeleaf Saxifrage: Saxifraga integrifolia (Synonyms: Micranthes integrifolia, Saxifraga integrifolia var. integrifolia) - Early spring wildflower to 18 inches tall. Leaves are basal, oval or elliptical in shape, with entire margins. The flowers are white. Common in moist banks and seepage slopes which dry out during the summer.
Hybrid Saxifrage: Saxifraga integrifolia x marshallii -
Hybrid Saxifrage: Saxifraga integrifolia x oregana -
Marshall's Saxifrage: Saxifraga marshallii (Synonyms: Micranthes marshallii, Saxifraga hallii) -
Merten's Saxifrage, Wood Saxifrage, Woodland Saxifrage: Saxifraga mertensiana - Blades of basal and stem leaves round with large teeth on the margins, each tooth tipped with 3 smaller teeth. Flowers small, in an open panicle, with 5 narrow white petals. Prefers wet places.
Dotted Saxifrage, Nelson's Saxifrage: Saxifraga nelsoniana ssp. cascadensis (Synonyms: Saxifraga nelsoniana var. cascadensis, Saxifraga punctata, Saxifraga punctata var. cascadensis) - Basal leaves with round to kidney-shape. Margins with numerous triangular teeth. Each of the 5 white petals is narrowly to broadly oblong or oblong-elliptic, and each has 2 yellow dots near the base. Petals all the same size and shape. Could be confused with Saxifraga odontoloma.
Brittle-leaved Saxifrage: Saxifraga nidifica var. claytoniifolia (Synonyms: Saxifraga fragosa, Saxifraga fragosa ssp. claytoniaefolia, Saxifraga fragosa var. fragosa, Saxifraga integrifolia var. claytoniifolia) -
Nesting Saxifrage: Saxifraga nidifica var. nidifica (Synonyms: Saxifraga integrifolia var. columbiana, Saxifraga integrifolia var. leptopetala) -
Nuttall's Saxifrage: Saxifraga nuttallii (Synonym: Cascadia nuttallii) -
Western Saxifrage, Alberta Saxifrage, Mountain Saxifrage, Western Mountain Saxifrage: Saxifraga occidentalis (Synonyms: Micranthes occidentalis, Saxifraga occidentalis var. allenii, Saxifraga occidentalis var. occidentalis, Saxifraga occidentalis ssp. occidentalis, Saxifraga occidentalis var. wallowensis) - Early spring wildflower to 10 inches high. Leaves basal, ovate with teeth. Petals white. Stems reddish. Found on moist rocky banks which dry out in summer.
Brook Saxifrage, Stream Saxifrage, Streambank Saxifrage: Saxifraga odontoloma (Synonyms: Micranthes odontoloma, Saxifraga aestivalis, Saxifraga arguta, Saxifraga punctata var. arguta) - Leaves all basal and kidney-shaped with numerous triangular teeth. Petioles 2-3 times longer than the blades. Flowers on cymose panicles. Petals white and orbicular in shape, although the petals may be different sizes and shapes on the same flower. Could be confused with Saxifraga punctata.
Purple Mountain Saxifrage, Purple Saxifrage, Twinflowered Saxifrage: Saxifraga oppositifolia (Synonym: Saxifraga oppositifolia ssp. oppositifolia) -
Bog Saxifrage, Oregon Saxifrage: Saxifraga oregana (Synonyms: Micranthes oregana, Saxifraga oregana var. montanensis, Saxifraga oregana var. oregana) - Basal leaves large, oblanceolate with moderately acute tips. Inflorescence narrowly to widely cymose-paniculate. Petals white to greenish-white, or absent. Petals may be of different sizes.
Pygmy Saxifrage, Weak Saxifrage, Alpine-brook Saxifrage: Saxifraga rivularis -
Yellow Saxifrage: Saxifraga sibthorpii -
Olympic Saxifrage: Saxifraga tischii -
Alpine Saxifrage, Tolmie's Saxifrage, Tolmie's Alpine Saxifrage: Saxifraga tolmiei (Synonyms: Micranthes tolmiei, Saxifraga tolmiei var. tolmiei) - Low growing and densely tufted, with short, nearly prostrate, leafy stems. Leaves smoth, crowded, fleshy and spatulate. The leaves are 6-10 mm long with entire margins. The flower stems are from 5-10 cm high, leafless or with up to 2 small bracts. The flowers are single or in cymes. the calyx may be purple with spreading lobes. The white petals are twice as long as the sepals. The seed capsule is oval and is often mottled with purplish blotches.