Arbutus menziesii Pursh

Pacific madrone (en)

Species

Angiosperms > Ericales > Ericaceae > Arbutus

Characteristics

Shrubs or trees, 4-10(-20) m; bark dark red, smooth, until mid season when outer bark exfoliates, inner bark green, soon weathering to dark red; following exfoliation on younger wood, bark retained on oldest portions of main axis and on abaxial sides of larger lateral axes, area of retained bark gradually increasing as tree ages, becoming roughened dark gray. Leaves larger on sterile shoots with longer internodes; petiole 2-4.5 cm, base slightly decurrent, glabrous, sometimes with hairs adaxially; blade glaucous-green abaxially, olive-green adaxially (leaves of previous season turning yellow and red in June and July before they fall), elliptic, 6.5-13 × 3.5-6(-8) cm, base usually rounded, sometimes slightly cordate, rarely tapered, apex usually rounded or acute, rarely with short cusp, surfaces glabrescent (sparingly hairy on newly emerging leaves). Inflorescences (often compound), congested or not; axes hairy ± throughout, hairs not glandular. Pedicels accrescent, initially pendulous, becoming stiffly erect, 3-5(-6.2) mm, (to 6-8 mm in fruit), sometimes sparsely glandular-hairy; bract clasping base, rust-colored, scalelike, 2-3.5 mm. Flowers: calyx creamy tan at anthesis, lobes 1-2.1 mm, apex blunt; corolla 4.9-5.8 mm; anthers 1-1.2 mm, spurs usually slightly exceeding length of thecae; ovary with 2-5 ovules per locule. Berries red or orange-red, 13-20 mm diam. Seeds 2-2.5 mm.
More
An evergreen tree. It can grow to 20-30 m high. The trunk is 60-100 cm across. It has smooth reddish-brown bark. This peels off in papery flakes. The freshly exposed bark is green. The leaves are oval and 7-12 cm long. The leaves have smooth edges and are glossy green. They are whitish underneath. The male and female flowers are yellow and bell shaped and born on separate trees. The flowers occur in large clusters. They are white. They have a strong honey odour. The fruit are small and orange-red. They are 1 cm across. They have a grainy surface and many seeds.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 2.0
Mature height (meter) 8.0 - 15.0
Root system tap-root
Rooting depth (meter) 0.6
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Found in a wide range of soils and climates and also in many different habitats. Grows in drier areas on high well-drained slopes usually in rich soils, occasionally on gravel.
More
It is a temperate plant. It is native to North America. It needs acid soil.. It mostly grows in humid areas. It suits hardiness zones 7-9. It needs a dry summer.
Light 5-8
Soil humidity 2-5
Soil texture 3-5
Soil acidity 2-7
Soil nutriment -
Hardiness (USDA) 6-9

Usage

The fruit can be eaten in small quantities. They can be eaten raw or boiled or steamed. After boiling they can be dried and stored for later use. They then need to be soaked in warm water before eating. Caution: The fruit can be high in tannin.
Uses beverage charcoal dye environmental use fiber forage fuel material medicinal smoking wood
Edible fruits
Therapeutic use Dermatological Aid (bark), Misc. Disease Remedy (bark), Throat Aid (bark), Gastrointestinal Aid (bark), Veterinary Aid (bark), Love Medicine (flower), Gastrointestinal Aid (leaf), Burn Dressing (leaf), Ceremonial Medicine (leaf), Cold Remedy (leaf), Throat Aid (leaf), Dermatological Aid (leaf), Veterinary Aid (leaf), Emetic (unspecified), Dietary Aid (unspecified), Gastrointestinal Aid (unspecified), Burn (unspecified), Cold (unspecified), Diabetes (unspecified), Rheumatism (unspecified), Wound (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs soaking and stratification.
Mode cuttings seedlings
Germination duration (days) 60 - 90
Germination temperacture (C°) 11 - 12
Germination luminosity -
Germination treatment soaking stratification
Minimum temperature (C°) -12
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Arbutus menziesii leaf picture by Loren Wang (cc-by-sa)
Arbutus menziesii leaf picture by Owen Owen Thompson-Lastad (cc-by-sa)
Arbutus menziesii leaf picture by Adam Van Straten (cc-by-sa)

Flower

Arbutus menziesii flower picture by a pecan (cc-by-sa)
Arbutus menziesii flower picture by Bea Santo (cc-by-sa)
Arbutus menziesii flower picture by Steven Fisher (cc-by-sa)

Fruit

Arbutus menziesii fruit picture by Steven Fisher (cc-by-sa)
Arbutus menziesii fruit picture by Adam Van Straten (cc-by-sa)

Distribution

Arbutus menziesii world distribution map, present in Canada and United States of America

Conservation status

Arbutus menziesii threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:326479-1
WFO ID wfo-0000543147
COL ID G6Q7
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Arbutus procera Arbutus menziesii var. elliptica Arbutus menziesii var. oblongifolia Arbutus menziesii