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prickly saxifrage, saxifrage à trois dents, three-tooth saxifrage

Taylor's saxifrage

Habit Plants loosely mat-forming, (stems trailing), not stoloniferous, with elongate caudex or rhizomatous. Plants loosely mat-forming, stoloniferous, rhizomatous.
Leaves

cauline, (marcescent, crowded proximally);

petiole absent;

blade (often reddish), linear to cuneate, 1–3-lobed or -toothed apically (distal cauline unlobed), rarely all unlobed, (lobes long spinose-mucronate), 5–20 mm, leathery, margins entire, softly glandular-ciliate, (nonsecreting hydathodes present adaxially), apex acute, long spinose-mucronate, surfaces glabrous.

cauline (crowded proximally);

petiole absent;

blade broadly obovate, prominently 3-lobed apically (distal unlobed, reduced), (lobes lanceolate to oblong, mucronate), 4.5–12 mm, ± leathery, margins entire, (cartilaginous), stiffly ciliate, apex acute, not or slightly mucronate, surfaces glabrous.

Inflorescences

3–10-flowered cymes, 4–10(–24) cm, white to sparsely pink- to purple-tipped stipitate-glandular;

bracts sessile.

2–4-flowered cymes, sometimes solitary flowers, 3.5–13 cm, glabrous except bracts purple-tipped stipitate-glandular;

bracts sessile.

Flowers

sepals erect to ascending, (sometimes purplish), triangular-ovate, margins ± glandular-ciliate, surfaces white to purple-tipped stipitate-glandular;

petals white to cream, proximally to distally yellow-, orange-, and red-spotted, elliptic to ovate, 4–7 mm, much longer than sepals;

ovary superior.

sepals erect to ascending, (purplish), ovate to oblong, margins eciliate, surfaces glabrous;

petals white to cream, not spotted, elliptic to obovate, 3.5–7 mm, much longer than sepals;

ovary superior.

2n

= 26.

= 26, 52.

Saxifraga tricuspidata

Saxifraga taylorii

Phenology Flowering late spring–summer. Flowering summer.
Habitat Open sandy, gravelly, or rocky sites, forest openings, grassy slopes, rocky ridges, stony tundra Moist outcrops, rocky ledges, talus slopes
Elevation 0-3000 m (0-9800 ft) 100-1000 m (300-3300 ft)
Distribution
from FNA
AK; MI; AB; BC; LB; MB; NT; NU; ON; QC; SK; YT; Greenland
[WildflowerSearch map]
[BONAP county map]
from FNA
BC
[BONAP county map]
Discussion

The rare, entire-leaved form of Saxifraga tricuspidata can be confused with S. bronchialis; it has glandular-ciliate margins instead of stiffly hooked-ciliate ones.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Saxifraga taylorii is known only from the Queen Charlotte Islands and northwestern Vancouver Island.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 8, p. 142. FNA vol. 8, p. 142.
Parent taxa Saxifragaceae > Saxifraga Saxifragaceae > Saxifraga
Sibling taxa
S. adscendens, S. aizoides, S. aleutica, S. bracteata, S. bronchialis, S. cernua, S. cespitosa, S. cherlerioides, S. chrysantha, S. debilis, S. eschscholtzii, S. flagellaris, S. hirculus, S. hyperborea, S. mertensiana, S. nathorstii, S. oppositifolia, S. paniculata, S. radiata, S. rivularis, S. serpyllifolia, S. taylorii, S. tridactylites, S. vespertina
S. adscendens, S. aizoides, S. aleutica, S. bracteata, S. bronchialis, S. cernua, S. cespitosa, S. cherlerioides, S. chrysantha, S. debilis, S. eschscholtzii, S. flagellaris, S. hirculus, S. hyperborea, S. mertensiana, S. nathorstii, S. oppositifolia, S. paniculata, S. radiata, S. rivularis, S. serpyllifolia, S. tricuspidata, S. tridactylites, S. vespertina
Name authority Rotbøll: Skr. Kiøbenhavnske Selsk. Laerd. Elsk. 10: 446. 1770 (as 3cuspidata) , Calder & Savile: Brittonia 11: 248, figs. 6, 10–13. 1959 (as taylori) ,
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