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Saxifraga hyperborea

Higher Taxonomy
Family: SaxifragaceaeView DescriptionDichotomous Key

Common Name: SAXIFRAGE FAMILY
Habit: Perennial herb from caudex or rhizome, generally +- hairy. Stem: often +- leafy on proximal 1/2, rarely trailing and leafy throughout. Leaf: generally simple, basal and/or cauline, generally alternate, generally petioled; veins +- palmate. Inflorescence: raceme or panicle, generally +- scapose. Flower: generally bisexual, generally radial; hypanthium free to +- fused to ovary; calyx lobes generally 5; petals generally 5, free, generally clawed, generally white; stamens 3, [4], 5, 8, or 10; pistils 1 (carpels +- fused, ovary lobed, chambers 1 or 2, placentas generally 2(3), axile or parietal or occasionally proximally axile and distally marginal in ovary lobes) or 2 (carpels free, placentas marginal), ovary nearly superior to inferior, occasionally more superior in fruit, styles generally 2(3). Fruit: capsule (generally 2(3)-beaked, valves generally 2(3), generally equal) or 2 follicles. Seed: generally many, small.
Genera In Family: +- 30 genera, 600 species: especially northern temperate, arctic, alpine; some cultivated (Bergenia, Darmera, Heuchera, Saxifraga, Tellima, Tolmiea). Note: California Mitella moved to Mitellastra, Ozomelis, Pectiantia; Suksdorfia ranunculifolia to Hemieva. Parnassia moved to Parnassiaceae.
eFlora Treatment Author: Michael S. Park & Patrick E. Elvander, except as noted
Scientific Editor: Bruce G. Baldwin.
Genus: SaxifragaView DescriptionDichotomous Key

Common Name: SAXIFRAGE
Habit: Plant generally +- hairy, often glandular; caudex or rhizome generally not woody, generally scaly. Leaf: blade obovate to round, base tapered to reniform or cordate, margin lobed. Inflorescence: raceme or panicle; flowers 1--many; bracts scale-like. Flower: hypanthium free or +- fused to ovary; [petals sometimes spotted]; stamens 10, filaments generally flat; pistil 1, ovary superior to +- inferior (sometimes more superior in fruit), chambers 2, placentas 2, axile, styles 2, free throughout. Fruit: capsule.
Species In Genus: +- 300 species: cool northern temperate, boreal, arctic. Etymology: (Latin: rock-breaking) Note: Saxifraga stolonifera W. Curtis cultivated only. Other taxa in TJM (1993) moved to Cascadia, Micranthes.
eFlora Treatment Author: Michael S. Park

Saxifraga hyperborea R. Br.
NATIVE
Habit: Caudex fragile; bulblets 0. Leaf: basal and cauline, < 3 cm, smaller upward; petiole 5--25 mm; blade generally 5--8 mm, wider than long, divided > 1/2 to base, base +- shallowly reniform; lobes 3--5, +- round to elliptic. Inflorescence: raceme; flowers generally few. Flower: sepals erect, generally < petals, elliptic to ovate; petals 2--6 mm, elliptic to +- obovate; filaments thread-like, slightly widened at base; ovary > 1/2-inferior, more superior in fruit. Chromosomes: 2n=26.
Ecology: Uncommon. Moist crevices, shaded rocky areas; Elevation: 3000--4500 m. Bioregional Distribution: c&s SNH; Distribution Outside California: sporadic to arctic, Colorado, Arizona, circumboreal. Flowering Time: Jul--Aug
Synonyms: Saxifraga rivularis L., misappl.
eFlora Treatment Author: Michael S. Park
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botanical illustration including Saxifraga hyperborea

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Citation for this treatment: Michael S. Park 2016. Saxifraga hyperborea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=43367, accessed on April 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 29, 2016.


Saxifraga hyperborea
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© 2015 Barry Breckling

More photos of Saxifraga hyperborea in CalPhotos


Geographic subdivisions for Saxifraga hyperborea:
c&s SNH;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.