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Vascular Plants of California
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Arctostaphylos cruzensis
ARROYO DE LA CRUZ 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, Bruce G. Baldwin.
Arctostaphylos cruzensis Roof
NATIVE
Habit: Shrub, prostrate, 0.1--1 m. Stem: twig (and nascent inflorescence axis, bract, pedicel) sparsely nonglandular-hairy. Leaf: overlapped; petiole < 2 mm; blade 1.5--3 cm, 1--25 cm wide, oblong-ovate, bright green, tomentose, glabrous in age, smooth, base lobed, clasping, tip acute, margin entire or toothed, hairy-ciliate near base. Inflorescence: panicle, 1--3-branched; nascent inflorescence pendent, bell-shaped, crowded, hidden by large lower bracts, axis 0.5--1.5 cm, > 1 mm wide; bracts 5--15 mm, leaf-like, lanceolate to lance-ovate; pedicel 4--5 mm. Flower: ovary densely white-nonglandular-hairy. Fruit: 8--10 mm wide, depressed-spheric, glabrous; stones free. Chromosomes: 2n=26.
Ecology: Sandy bluffs, maritime chaparral, coastal prairie; Elevation: < 150 m. Bioregional Distribution: c CCo (s Monterey, nw San Luis Obispo cos.). Flowering Time: Jan--Mar
Synonyms: Arctostaphylos pechoensis (Abrams) Eastw. var. cruzensis (Roof) Gankin
Jepson eFlora Author: V. Thomas Parker, Michael C. Vasey & Jon E. Keeley
Reference: Keeley 1997 Madroño 44:109--111; Parker et al. 2007 Madroño 54:148--155
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

Previous taxon: Arctostaphylos crustacea subsp. subcordata
Next taxon: Arctostaphylos densiflora

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Botanical illustration including Arctostaphylos cruzensis

botanical illustration including Arctostaphylos cruzensis

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Citation for this treatment: V. Thomas Parker, Michael C. Vasey & Jon E. Keeley 2012, Arctostaphylos cruzensis, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=13921, accessed on October 04, 2023.

Citation for the whole project: Jepson Flora Project (eds.) 2023, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on October 04, 2023.

Arctostaphylos cruzensis
click for enlargement
© 2011 Chris Winchell
Arctostaphylos cruzensis
click for enlargement
© 2011 Chris Winchell
Arctostaphylos cruzensis
click for enlargement
© 2002 David Graber
Arctostaphylos cruzensis
click for enlargement
© 2002 David Graber
Arctostaphylos cruzensis
click for enlargement
© 2011 Chris Winchell
Arctostaphylos cruzensis
click for enlargement
© 2011 Chris Winchell

More photos of Arctostaphylos cruzensis in CalPhotos



Geographic subdivisions for Arctostaphylos cruzensis:
c CCo (s Monterey, nw San Luis Obispo cos.).
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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).





 

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.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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 (fruiting time in some monocot genera).