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Vascular Plants of California
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Heuchera rubescens


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: HeucheraView DescriptionDichotomous Key


Common Name: ALUMROOT
Habit: Rhizome scaly; bulblets 0. Leaf: basal, sometimes a few cauline; blade ovate, base cordate to reniform, lobes and teeth generally shallow, irregular. Inflorescence: panicle, often spike- or raceme-like; bracts generally scale-like. Flower: radial or +- bilateral; hypanthium partly fused to ovary; calyx lobes equal or not; petals 0 or 5, generally equal, clawed, generally white; stamens 5, generally equal; pistil 1, ovary > 1/2-inferior, chamber 1, placentas 2, parietal. Fruit: capsule. Seed: red-brown, minutely spiny.
Species In Genus: 50 species: North America. Etymology: (J.H. von Heucher, German professor of medicine, 1677--1747) Note: Highly variable; needs study.
eFlora Treatment Author: Michael S. Park
Unabridged Reference: Rosendahl et al. 1936 Minnesota Stud Pl Sci 2:1--180
Heuchera rubescens Torr.
NATIVE
Habit: Plant 7--55 cm. Leaf: petiole 1--15 cm; blade 8--60 mm, broadly ovate to +- round, +- deeply 5--9-lobed. Inflorescence: often 1-sided, open or dense, cylindric to conic, glandular. Flower: +- bilateral; hypanthium + calyx 3--6 mm; part of hypanthium fused to ovary 0.9--2.5 mm, +- = long side of free part; calyx lobes (0.5)1--2 mm, generally unequal, +- white to pink-red, tips green, becoming redder; petals 3--6 mm, thread-like to narrowly oblanceolate, claw +- = blade; stamens > calyx lobes, exserted; mature styles generally >> 1.5 mm, exserted. Chromosomes: 2n=14,28.
Ecology: Dry, rocky areas; Elevation: 1000--4000 m. Bioregional Distribution: SNH, PR, Wrn, SNE, DMtns; Distribution Outside California: to Oregon, Idaho, Colorado, Texas, northern Mexico. Flowering Time: May--Sep Note: Morphological characters used to delimit previously recognized varieties vary +- continuously and lack geographical structure.
Synonyms: Heuchera rubescens var. alpicola Jeps.; Heuchera rubescens var. glandulosa Kellogg; Heuchera rubescens var. rydbergiana Rosend. et al.; Heuchera rubescens var. versicolor (Greene) M.G. Stewart
Jepson eFlora Author: Michael S. Park
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Citation for this treatment: Michael S. Park 2012, Heuchera rubescens, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28140, accessed on October 23, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 23, 2019.

Heuchera rubescens
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© 2015 Keir Morse
Heuchera rubescens
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© 2012 Gary A. Monroe
Heuchera rubescens
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© 2019 Neal Kramer
Heuchera rubescens
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© 2002 Larry Blakely
Heuchera rubescens
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© 2015 Keir Morse
Heuchera rubescens
click for enlargement
© 2002 Larry Blakely

More photos of Heuchera rubescens in CalPhotos



Geographic subdivisions for Heuchera rubescens:
SNH, PR, Wrn, SNE, DMtns
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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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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.