Arbutus arizonica (A. Gray) Sarg.
ARIZONA MADRONE
  Dicotyledoneae   Ericaceae   Arbutus

Arbutus arizonica
© Copyright Bobby Hattaway 2011 · 5
Arbutus arizonica

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Arbutus arizonica, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Arbutus arizonica, whole tree or vine - general

Arbutus arizonica, leaf - whole upper surface
© Copyright Steve Baskauf, 2002-2011 · 4
Arbutus arizonica, leaf - whole upper surface

Arbutus arizonica, twig - orientation of petioles
© Copyright Steve Baskauf, 2002-2011 · 4
Arbutus arizonica, twig - orientation of petioles

Arbutus arizonica, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Arbutus arizonica, whole tree or vine - general

Arbutus arizonica, whole tree or vine - general
© Copyright Steve Baskauf, 2002-2011 · 4
Arbutus arizonica, whole tree or vine - general
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Names
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FamilyScientific name @ source (records)
Andrenidae  Andrena cerasifolii @ AMNH_BEE (1)
Miridae  Phytocoris inops @ AMNH_ENT (1)
Polyporaceae  Fomes ohiensis @ BPI (2)

Poria medulla-panis @ BPI (2)

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Arbutus arizonica (A. Gray) Sarg.
Arizona madrone

Image of Arbutus arizonica

General Information
Symbol: ARAR2
Group: Dicot
Family: Ericaceae
Duration: Perennial
Growth Habit : Tree
Native Status : L48   N
Characteristics
Data Source and Documentation
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory . United States, AZ. Usage Requirements .

M.W. Talbot. Provided by National Agricultural Library . Originally from USDA Forest Service . United States, AZ, Tonto National Forest. 1922. Usage Requirements .

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Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Dilleniidae
Order Ericales
Family Ericaceae – Heath family
Genus Arbutus L. – madrone
Species Arbutus arizonica (A. Gray) Sarg. – Arizona madrone

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

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ARS Germplasm Resources Information Network (ARAR2)
CalPhotos (ARAR2)
Integrated Taxonomic Information System (ARAR2)
Lady Bird Johnson Wildflower Center Native Plant Information Network (ARAR2)
USDA Forest Service Fire Effects Information System (ARAR2)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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FNA Vol. 8 Page 398, 399 , 400 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 8 | Ericaceae | Arbutus

1. Arbutus arizonica (A. Gray) Sargent, Gard. & Forest. 4: 317. 1891.

Arizona madrone

Arbutus xalapensis Kunth var. arizonica A. Gray in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 396. 1886

Trees, 3-8[-10] m; bark light gray to reddish gray, checkered with squarish to rectangular segments or plates, 1-4 × 1-2.5 cm, retained on bole and major limbs; twigs 3+ years old with brick-red outer bark exfoliating in flakes or, sometimes, in slender strips. Leaves larger on sterile shoots with longer internodes; petiole (often red), (1-)1.7-3.2(-4.2) cm, base slightly decurrent, glabrous; blade slightly lighter green abaxially, olive-green and glossy adaxially, ovate, (2.5-) 3-7.5(-9) × (1-)1.8-3(-4) cm, base usually tapered-acute, rarely slightly rounded [broader and more nearly ovate-lanceolate], apex usually acute, sometimes slightly acuminate, surfaces glabrous. Inflorescences often congested; axes densely hairy, hairs sometimes glandular. Pedicels accrescent, obliquely erect or slightly pendulous, 2.4-5 mm (to 16 mm in fruit), densely hairy, hairs sometimes glandular; bract clasping base, reddish, scalelike, 1.4-2 mm. Flowers: calyx pale green, lobes 1.1-1.5 mm (mostly hidden beneath corolla), apex obtuse or rounded; corolla 5-5.6 mm; anthers 1.3-1.5 mm, spurs 1/2-2/3 times length of thecae, (finely tuberculate); ovary with (2-)3-5+ ovules per locule. Berries blackish red, 6.5-9 mm diam. Seeds ca. 2 mm.

Flowering May-Jun(-Aug); fruiting Aug-Oct. Riverine forests and oak parklands along seasonally moist waterways; 1500-2400 m; Ariz., N.Mex.; Mexico (Chihuahua, Durango, Jalisco, Sinaloa, Sonora, Zacatecas).

Two outstanding features of Arbutus arizonica distinguish it in the field: 1) the consistently narrow, glossy leaves with tapered leaf bases, and 2) the nonexfoliating bark that acquires a checkered appearance within a few years. Trees with the narrowest leaves overall and the most narrowly tapered bases occur in the populations in the extreme northern part of the range in Cochise, Graham, Pima, and Santa Cruz counties of southeastern Arizona and Hidalgo County in southwestern New Mexico.

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Updated: 2020-07-09 05:26:38 gmt
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