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Arctostaphylos edmundsii
LITTLE SUR MANZANITA

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.
Genus: ArctostaphylosView DescriptionDichotomous Key

Common Name: MANZANITA
Habit: Shrub to small tree, prostrate to erect. Stem: old stems generally +- red, smooth, bark generally thin, peeling, or generally +- gray or red-gray, shredding and rough; burls at base, woody, sprouting after fire, or generally 0; twig hairs 0 or generally +- like those on inflorescence axes, bracts. Leaf: alternate, evergreen; blade flat to convex, base lobed to wedge-shaped, clasping stem or not, margins generally flat, surfaces with stomata generally both abaxially, adaxially, alike in color, hairiness, less often only or fewer abaxially, generally differing in color, hairiness. Inflorescence: +- raceme (generally 0--1-branched) or panicle (generally 2--10-branched), terminal, nascent inflorescence present following stem growth, generally late spring through winter, remaining dormant 4--6 months prior to flower (except in Arctostaphylos pringlei subsp. drupacea); branches 0 or raceme-like; flower bracts leaf-like, generally flat, or scale-like, often folded, keeled, tips rounded to acute to awl-shaped. Flower: radial; sepals 5(4), free, persistent; corolla conic to urn-shaped, lobes in number = sepals, short, rounded, curved back, white to pink; stamens 2 × number of sepals, included, filaments swollen, generally hairy at base, anthers dark red, awns elongate; ovary superior, on disk, 4--10-chambered, ovule 1 per chamber. Fruit: drupe, generally +- depressed-spheric to spheric; flesh generally thick, +- mealy, occasionally 0; stones 2--10, free, fused, or some fused.
Species In Genus: +- 62 species: North America (especially California) to Central America, Eurasia. Etymology: (Greek: bear berries)
Unabridged Note: Rosatti (1986 Syst Bot 12:61--77) showed that in Arctostaphylos uva-ursi little to none of the variation in hairs (including length, glandularity) is genetically based.
eFlora Treatment Author: V. Thomas Parker, Michael C. Vasey & Jon E. Keeley

Arctostaphylos edmundsii J.T. Howell
NATIVE
Habit: Shrub, prostrate to mounded, 0.2--1.5 m. Stem: twig (and nascent inflorescence axis) sparsely short-nonglandular-hairy. Leaf: spreading; petiole 2--3 mm; blade 1--2.5 cm, 1--1.5 cm wide, elliptic to round-ovate, dark green, shiny, abaxially glabrous or sparsely nonglandular-hairy, adaxially sparsely puberulent, base truncate to +- lobed, tip abruptly soft-pointed, margin entire, flat; stomata abaxial. Inflorescence: panicle, 2--5-branched; nascent inflorescence pendent, axis 0.5--1 cm, > 1 mm wide; bracts 3--5 mm, scale-like, deltate to awl-shaped, (and pedicel) glabrous or sparsely nonglandular-hairy; pedicel 3--4 mm. Flower: ovary sparsely nonglandular-hairy or glabrous. Fruit: 6--8 mm wide, +- spheric, glabrous; stones free. Chromosomes: 2n=26.
Ecology: Sandy terraces, bluffs, maritime chaparral; Elevation: < 100 m. Bioregional Distribution: c CCo (nw Monterey Co.). Flowering Time: Nov--Dec
eFlora Treatment Author: V. Thomas Parker, Michael C. Vasey & Jon E. Keeley
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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Next taxon: Arctostaphylos franciscana

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Citation for this treatment: V. Thomas Parker, Michael C. Vasey & Jon E. Keeley 2016. Arctostaphylos edmundsii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13923, accessed on February 14, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 14, 2016.


Arctostaphylos edmundsii
click for enlargement
© 2006 Steve Matson
Arctostaphylos edmundsii
click for enlargement
© 2006 Steve Matson
Arctostaphylos edmundsii
click for enlargement
© 2006 Steve Matson
Arctostaphylos edmundsii
click for enlargement
© 2006 Steve Matson
Arctostaphylos edmundsii
click for enlargement
© 2006 Steve Matson
Arctostaphylos edmundsii
click for enlargement
© 1993 David Graber

More photos of Arctostaphylos edmundsii in CalPhotos


Geographic subdivisions for Arctostaphylos edmundsii:
c CCo (nw Monterey Co.).
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.