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Vascular Plants of California
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Pyrola minor
LESSER WINTERGREEN


Higher Taxonomy
Family: EricaceaeView DescriptionDichotomous Key
Common Name: HEATH FAMILY
Habit: Perennial herb, shrub, tree. Stem: bark often peeling distinctively. Leaf: simple or 0, generally cauline, alternate, opposite (whorled), evergreen or deciduous, often leathery, petioled or not; stipules 0. Inflorescence: raceme, panicle, cyme, or flowers 1, terminal or axillary, generally bracted; pedicel often with 2 bractlets. Flower: generally bisexual, generally radial, bell-shaped, cylindric, or urn-shaped; sepals generally (0)4--5, generally free; petals generally (0)4--5, free or fused; stamens (2--5)8--10, free, filaments rarely appendaged, anthers dehiscing by pores or slits, awns 0 or 2(4), seemingly abaxial, reduced or elongate, generally curved; nectary generally present at ovary base, generally disk-like; ovary superior or inferior, chambers generally 1--5, placentas axile or parietal, ovules 1--many per chamber, style 1, stigma head- to funnel-like or lobed. Fruit: capsule, drupe, berry. Seed: generally many, winged or not.
Genera In Family: +- 100 genera, 3000 species: generally worldwide except deserts; some cultivated, especially Arbutus, Arctostaphylos, Rhododendron, Vaccinium. Note: Monophyletic only if Empetraceae included, as treated here. Ledum included in Rhododendron. Non-green plants obtain nutrition from green plants through fungal intermediates.
eFlora Treatment Author: Gary D. Wallace, except as noted
Scientific Editor: Gary D. Wallace, Thomas J. Rosatti, Bruce G. Baldwin.
Genus: PyrolaView DescriptionDichotomous Key


Common Name: WINTERGREEN
Habit: Perennial subshrub, evergreen, rhizomed. Leaf: +- basal, reniform, ovate, +- round, elliptic, or obovate, +- entire to crenate or dentate, generally petioled (if vestigial, lanceolate to deltate, +- not green, sessile). Inflorescence: raceme, +- erect, not 1-sided, elongate; scape smooth, glabrous, bracts generally 1--several, deltate or lanceolate; flower bract 1 per flower, < to >> pedicel. Flower: radial, +- closed or subradial or bilateral, +- open, parts in 5s, free; petals without tubercles, upper 2 generally forming hood over upturned stamens; stamens 10, filaments generally widened at base, smooth, glabrous, anther generally with tube-like constrictions subtending pores; nectary 0; ovary superior, style +- included and straight or generally exserted and downcurved, stigma peltate, with 5 spreading lobes above a prominent, reflexed collar or generally not peltate, generally with 5 +- erect lobes projecting beyond a delicate, reflexed collar. Fruit: capsule, pendent; valves opening base to tip, margins fibrous. Seed: +- 1000.
Species In Genus: +- 30 species: generally circumboreal, high mountains of Central America, Sumatra. Etymology: (Latin: little pear, +- from leaf shape) Note: Pyrola chlorantha not in CA.
Unabridged Note: In Jepson eFlora Revision 2, Pyrola aphylla, Pyrola crypta, Pyrola dentata added, as native.
eFlora Treatment Author: Diana D. Jolles
Reference: Jolles & Wolfe 2012 Syst Bot 37:468--477; Jolles & Wilson 2014 Taxon 63(4):789--800
Pyrola minor L.
NATIVE
Leaf: < 5 cm; blade 1.5--4 cm, round to obovate, dull green, entire to obscurely crenate; petiole +- = blade. Inflorescence: < 2 dm including scape; flowers 3--10; flower bract > pedicel, lance-oblong, proximal-most generally larger. Flower: radial, +- closed; sepals 1.5--2 mm, deltate; petals 3.5--5 mm, white to +- pink; anthers < 1.5 mm, +- without tube-like constrictions subtending pores; style +- included, straight, stigma lobes spreading. Chromosomes: 2n=46.
Ecology: Uncommon. Moist, mossy or boggy areas, high montane conifer forest; Elevation: 2400--3000 m. Bioregional Distribution: KR, c&s SN, SnBr, SnJt, Wrn; Distribution Outside California: circumboreal, to Alaska, eastern North America; Eurasia. Flowering Time: Jul--Aug Note: Primarily self-fertilizing, but may hybridize with Pyrola asarifolia, Pyrola rotundifolia.
Jepson eFlora Author: Diana D. Jolles
Reference: Jolles & Wolfe 2012 Syst Bot 37:468--477; Jolles & Wilson 2014 Taxon 63(4):789--800
Unabridged Reference: Knaben & Engelskjøn 1968 Arb Univ Bergen, Mat Naturvitensk, Ser 1967:1--71; Haber 1984 Canad J Bot 62:1054--1061
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Botanical illustration including Pyrola minor

botanical illustration including Pyrola minor

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Citation for this treatment: Diana D. Jolles 2017, Pyrola minor, in Jepson Flora Project (eds.) Jepson eFlora, Revision 5, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=40451, accessed on September 16, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on September 16, 2019.

Pyrola minor
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© 2010 Steve Matson
Pyrola minor
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© 2014 Barry Breckling
Pyrola minor
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© 2016 Dana York
Pyrola minor
click for enlargement
© 2010 Steve Matson
Pyrola minor
click for enlargement
© 2014 Barry Breckling
Pyrola minor
click for enlargement
© 2009 Keir Morse

More photos of Pyrola minor in CalPhotos



Geographic subdivisions for Pyrola minor:
KR, c&s SN, SnBr, SnJt, Wrn
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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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All markers link to CCH specimen records. The original determination is shown in the popup window.
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.