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Pectiantia pentandra

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: PectiantiaView DescriptionDichotomous Key

Habit: Rhizome scaly; bulblets 0. Leaf: basal (occasionally 1 cauline); blade +- ovate to round, base +- cordate, +- lobed, generally toothed. Inflorescence: raceme or spike, +- 1-sided, blooming from base to tip; bracts generally scale-like. Flower: hypanthium saucer-shaped, +- fused to ovary; petals pinnately lobed, not clawed; stamens 5, filaments < anthers; pistil 1, ovary generally > 1/2-inferior, chamber 1, placentas 2, parietal; styles 2, <= 0.3 mm; stigmas 2-lobed. Fruit: capsule, becoming widely dehiscent, forming splash cup. Seed: many, red-brown to black, shiny.
Species In Genus: +- 13 species: temperate western North America, Japan, Taiwan. Etymology: (Latin: comb, from petals; opposing, for stamens opposite petals in Pectiantia pentandra)
eFlora Treatment Author: Michael S. Park & Douglas E. Soltis

Pectiantia pentandra (Hook.) Rydb.
NATIVE
Habit: Plant 1--4 dm. Leaf: petiole generally glabrous; blade 1.5--8 cm wide, ovate, lobes 5--9, teeth sharp. Inflorescence: pedicel 1--4 mm. Flower: hypanthium 3--5 mm wide; petals green, lobes 5--10, generally opposite, linear; stamens opposite petals; stigmas unlobed or each shallowly 2-lobed, +- sessile. Chromosomes: 2n=14.
Ecology: Streambanks, wet meadows; Elevation: 1500--2500 m. Bioregional Distribution: KR, NCoRH, CaRH, SNH, Wrn; Distribution Outside California: to Alaska, Colorado. Flowering Time: Jun--Aug
Synonyms: Mitella pentandra Hook.
eFlora Treatment Author: Michael S. Park & Douglas E. Soltis
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Previous taxon: Pectiantia ovalis
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Citation for this treatment: Michael S. Park & Douglas E. Soltis 2016. Pectiantia pentandra, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=36527, accessed on May 05, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 05, 2016.


Pectiantia pentandra
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© 2013 Julie Kierstead Nelson
Pectiantia pentandra
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© 2013 Julie Kierstead Nelson
Pectiantia pentandra
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© 2009 Keir Morse
Pectiantia pentandra
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© 2015 Barry Breckling
Pectiantia pentandra
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© 2008 Aaron Schusteff
Pectiantia pentandra
click for enlargement
© 2009 Keir Morse

More photos of Pectiantia pentandra in CalPhotos


Geographic subdivisions for Pectiantia pentandra:
KR, NCoRH, CaRH, SNH, Wrn;
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.