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Lithophragma glabrum

Higher Taxonomy
Family: SaxifragaceaeView DescriptionDichotomous Key

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: LithophragmaView DescriptionDichotomous Key

Habit: Rhizome slender, scaleless, bearing bulblets. Leaf: basal and cauline, reduced distally on stem, generally alternate, increasingly more deeply lobed from younger basal to distal cauline; blade round, base cordate to reniform, +- lobed, generally toothed. Inflorescence: raceme; bracts scale-like or 0. Flower: hypanthium generally partly fused to ovary; petals generally lobed or toothed; stamens 10; pistil 1, ovary superior to +- inferior, chamber 1, placentas 3, parietal, styles 3. Fruit: capsule, 3-beaked, valves 3.
Species In Genus: 12 species: western North America. Etymology: (Greek: rock hedge, from habitats)
Unabridged Note: Generic names ending in -phragma are considered of neuter, not feminine, gender.

Lithophragma glabrum Nutt.
Habit: Plant 8--25 cm. Leaf: basal blade deeply 3-lobed or +- 3-parted, lobes and leaflets lobed, teeth +- sharp-tipped. Inflorescence: flowers 1--7; pedicel 3--6 mm; proximal bracts often with axillary bulblet. Flower: hypanthium spheric to bell-shaped, part fused to ovary generally < free part; petals 3--7 mm, ovate, deeply 3--5-lobed, pink (white); ovary < 1/2-inferior. Seed: spiny. Chromosomes: 2n=14,28.
Ecology: Dry, gravelly places; Elevation: < 3200(3750) m. Bioregional Distribution: KR, CaRH, SNH, MP, n SNE (Alpine Co.); Distribution Outside California: to British Columbia, South Dakota, Colorado. Flowering Time: Mar--Jul
Synonyms: Lithophragma bulbiferum Rydb.
eFlora Treatment Author: Michael S. Park & Patrick E. Elvander
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botanical illustration including Lithophragma glabrum


Citation for this treatment: Michael S. Park & Patrick E. Elvander 2017. Lithophragma glabrum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 18, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora,, accessed on October 18, 2017.

Lithophragma glabrum
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© 2008 Keir Morse
Lithophragma glabrum
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© 2010 Barry Breckling
Lithophragma glabrum
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© 2012 Gary A. Monroe
Lithophragma glabrum
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© 2011 Steve Matson
Lithophragma glabrum
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© 1993 Gary A. Monroe
Lithophragma glabrum
click for enlargement
© 2008 Keir Morse

More photos of Lithophragma glabrum in CalPhotos

Geographic subdivisions for Lithophragma glabrum:
KR, CaRH, SNH, MP, n SNE (Alpine Co.);
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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.