Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Saxifraga tricuspidata

prickly saxifrage, saxifrage à trois dents, three-tooth saxifrage
Habit Plants loosely mat-forming, (stems trailing), not stoloniferous, with elongate caudex or 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.
Inflorescences

3–10-flowered cymes, 4–10(–24) cm, white to sparsely pink- to 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.
2n

= 26.

Saxifraga tricuspidata
Phenology Flowering late spring–summer.
Habitat Open sandy, gravelly, or rocky sites, forest openings, grassy slopes, rocky ridges, stony tundra
Elevation 0-3000 m (0-9800 ft)
Distribution
from FNA
AK; MI; AB; BC; LB; MB; NT; NU; ON; QC; SK; YT; Greenland
[WildflowerSearch map]
[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.)
Source FNA vol. 8, p. 142.
Parent taxa 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
Name authority Rotbøll: Skr. Kiøbenhavnske Selsk. Laerd. Elsk. 10: 446. 1770 (as 3cuspidata) ,
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

The species comparison tool is brought to you by:
Northwest Wildflowers