Flora of North America species comparison

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Saxifraga bronchialis

spotted saxifrage, yellowdot saxifrage
Habit Plants mat-forming, (stems trailing), not stoloniferous, rhizomatous.
Leaves

basal and cauline, (marcescent, crowded);

petiole absent;

blade (sometimes reddish), linear or linear-lanceolate to narrowly elliptic, unlobed, 3–15 mm, leathery, margins entire, stiffly, often hooked, white-ciliate, sometimes also glandular-ciliate, apex acute, white spinulose-mucronate (spine 1–1.5 mm), surfaces glabrous, sometimes adaxially sparsely sessile-glandular.
Inflorescences

2–15-flowered cymes or thyrses, sometimes solitary flowers, 5–20 cm, sparsely short stipitate-glandular;

bracts sessile.
Flowers

sepals ± erect, (purplish), ovate to triangular, margins eciliate or sparsely glandular, surfaces glabrous or sparsely sessile-glandular;

petals yellowish white, purple- or red- to yellow-spotted, oblong to elliptic, 3–7 mm, longer than sepals;

ovary superior.

Saxifraga bronchialis
Distribution
from FNA
AK; CO; ID; MT; NM; OR; UT; WA; WY; AB; BC; NT; YT; Eurasia; arctic and alpine areas
[WildflowerSearch map]
Discussion

Subspecies 4 (2 in the flora).

The Saxifraga bronchialis complex, including S. cherlerioides, S. taylorii, S. tricuspidata, and S. vespertina, needs a thorough study.

Saxifraga firma Litvinov ex Losina-Losinskaja has been cited for North America; the name belongs in synonymy of a Eurasian subspecies and appears to have been misapplied to North American specimens.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Petals yellow-spotted, distinctly clawed.
subsp. funstonii
1. Petals yellow-spotted proximally, purple- or red-spotted distally, not clawed.
subsp. austromontana
Source FNA vol. 8, p. 140.
Parent taxa Saxifragaceae > Saxifraga
Sibling taxa
S. adscendens, S. aizoides, S. aleutica, S. bracteata, 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. tricuspidata, S. tridactylites, S. vespertina
Subordinate taxa
S. bronchialis subsp. austromontana, S. bronchialis subsp. funstonii
Name authority Linnaeus: Sp. Pl. 1: 400. 1753 ,
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).



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