Jepson eFlora: Taxon page
Vascular Plants of California
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Moneses uniflora

Higher Taxonomy
Family: EricaceaeView DescriptionDichotomous Key
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: MonesesView Description 

Etymology: (Greek: single delight, from single flower)
eFlora Treatment Author: Gary D. Wallace & Erich Haber
Moneses uniflora (L.) A. Gray
Habit: Perennial herb < 10 cm, evergreen, rhizomes 0, roots rhizome-like. Leaf: +- basal, < 3.5 cm, ovate to obovate, not leathery, finely crenate or sharp-toothed, petioled. Inflorescence: flower 1; peduncle minutely papillate above; bracts 1--2, ovate. Flower: radial, nodding, parts in 5s, free; sepals fringed; petals < 1 cm, spreading, entire or minutely fringed, waxy-white to +- pink; stamens 10, filaments +- widened at base, glabrous, anther pores on tubes; nectary 0; ovary superior, style not or in slight depression, straight, slender, stigma crown-like, lobes 5, prominent. Fruit: capsule, erect; valves opening tip to base, margins not fibrous. Chromosomes: 2n=26.
Ecology: Moist, mossy conifer forests; Elevation: 100--1000 m. Bioregional Distribution: n NCo, w KR, n NCoRO, CaRH, c SNH (Fresno Co.); Distribution Outside California: North America, Eurasia, circumboreal. Flowering Time: May--Jul
Synonyms: Moneses uniflora var. reticulata (Nutt.) S.F. Blake
Jepson eFlora Author: Gary D. Wallace & Erich Haber
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Botanical illustration including Moneses uniflora

botanical illustration including Moneses uniflora


Citation for this treatment: Gary D. Wallace & Erich Haber 2012, Moneses uniflora, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on September 24, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on September 24, 2022.

Moneses uniflora
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© 2016 Keir Morse
Moneses uniflora
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© 2022 California Academy of Sciences
Moneses uniflora
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© 2015 Dana York
Moneses uniflora
click for enlargement
© 2016 Keir Morse
Moneses uniflora
click for enlargement
© 2015 Dana York
Moneses uniflora
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© 2014 Barry Rice

More photos of Moneses uniflora in CalPhotos

Geographic subdivisions for Moneses uniflora:
n NCo, w KR, n NCoRO, CaRH, c SNH (Fresno Co.)
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
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.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

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 (fruiting time in some monocot genera).