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Thalictrum fendleri var. fendleri

Higher Taxonomy
Family: RanunculaceaeView DescriptionDichotomous Key

Common Name: BUTTERCUP FAMILY
Habit: Annual, perennial herb, woody vine [shrub], occasionally aquatic. Leaf: generally basal and cauline, alternate or opposite, simple or compound; petioles at base generally flat, occasionally sheathing or stipule-like. Inflorescence: cyme, raceme, panicle, or flowers 1. Flower: generally bisexual, generally radial; sepals 3--6(20), free, early-deciduous or withering in fruit, generally green; petals 0--many, generally free; stamens generally 5--many, staminodes generally 0; pistils 1--many, ovary superior, chamber 1, style 0--1, generally +- persistent as beak, ovules 1--many. Fruit: achene, follicle, berry, +- utricle in Trautvetteria, in aggregate or not, 1--many-seeded.
Genera In Family: +- 60 genera, 1700 species: worldwide, especially northern temperate, tropical mountains; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Helleborus, Nigella). Toxicity: some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus). Note: Taxa of Isopyrum in TJM (1993) moved to Enemion; Kumlienia moved to Ranunculus.
eFlora Treatment Author: Margriet Wetherwax & Dieter H. Wilken, family description, key to genera
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: ThalictrumView DescriptionDichotomous Key

Common Name: MEADOW-RUE
Habit: Perennial herb from caudex or rhizomes, generally glabrous; dioecious or flowers bisexual. Stem: 1--few, generally erect; branches 0 or few. Leaf: 1--4-ternate or pinnate, basal or basal and cauline, alternate, generally reduced distally on stem; leaflets wedge-shaped to +- round, entire, crenate, or lobed; pale green abaxially, generally green adaxially. Inflorescence: raceme or panicle, axillary or terminal, generally erect, +- scapose or not; bracts simple to 1-ternate; pedicels generally erect in fruit. Flower: sepals 4--5, +- green-white to +- purple, petal-like or not, generally early-deciduous; petals 0; stamens 8--many, generally > sepals, filaments flat or generally thread-like, anthers generally narrowly oblong, tip generally pointed; pistils (1)2--22. Fruit: achene, compressed laterally or not, ribbed or veined, beaked.
Species In Genus: 120--200 species: temperate North America, Eurasia, Africa; some ornamental, medicinal. Etymology: (Greek: name given by Dioscorides, Greek physician-botanist)
eFlora Treatment Author: Bruce D. Parfitt & Dieter H. Wilken
Species: Thalictrum fendleriView Description 

Habit: Plant 60--200 cm; generally dioecious. Leaf: basal and cauline, 7--46 cm; segments 8--20 mm, glabrous to finely glandular-puberulent. Inflorescence: panicle, bracts leaf-like proximally. Flower: sepals generally 4, 2--5 mm; stamens 15--28, filaments thread-like, anthers oblong-linear, acuminate. Fruit: 7--20, spreading to ascending; body 4--8 mm, +- compressed laterally, sides obliquely +- ovate or +- widely obovate to +- round, ribs 1--3, +- curved, veins 0--several, beak 1.5--4 mm.
Note: Plants in NCoR occasionally with bisexual flowers; varieties in California difficult, need study.

Thalictrum fendleri Engelm. ex A. Gray var. fendleri
NATIVE
Leaf: distal abaxially generally finely glandular-puberulent (at 20×). Fruit: body +- compressed throughout, sides obliquely +- ovate to +- obovate, 2--3-ribbed, veins 0. Chromosomes: 2n=28,56,70.
Ecology: Moist, open to shaded places, woodland, forest; Elevation: 500--3200 m. Bioregional Distribution: KR, CaR (uncommon), SN, SnFrB, SCoRO, TR, PR, GB; Distribution Outside California: to Oregon, Wyoming, Texas, northern Mexico. Flowering Time: May--Aug
eFlora Treatment Author: Bruce D. Parfitt & Dieter H. Wilken
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botanical illustration including Thalictrum fendleri var. fendleri

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Citation for this treatment: Bruce D. Parfitt & Dieter H. Wilken 2016. Thalictrum fendleri var. fendleri, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=67036, accessed on September 29, 2016.

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


Thalictrum fendleri var. fendleri
click for enlargement
© 2008 Steve Matson
Thalictrum fendleri var. fendleri
click for enlargement
© 2008 Steve Matson
Thalictrum fendleri var. fendleri
click for enlargement
© 2004 George W. Hartwell
Thalictrum fendleri var. fendleri
click for enlargement
© 2008 Steve Matson
Thalictrum fendleri var. fendleri
click for enlargement
© 2008 Steve Matson
Thalictrum fendleri var. fendleri
click for enlargement
© 2015 Barry Breckling

More photos of Thalictrum fendleri var. fendleri in CalPhotos


Geographic subdivisions for Thalictrum fendleri var. fendleri:
KR, CaR (uncommon), SN, SnFrB, SCoRO, TR, PR, GB;
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.
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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.