Magnolia macrophylla Michx.

Bigleaf magnolia (en)

Species

Angiosperms > Magnoliales > Magnoliaceae > Magnolia

Characteristics

Trees , deciduous, single-trunked, to 15(-32) m. Bark yellowish to gray, smooth. Pith homogeneous. Twigs and foliar buds silky-pubescent. Leaves crowded in terminal whorl-like clusters; stipules (9-)11-17 × 3-6.5 cm, abaxially pilose, glandular. Leaf blade broadly elliptic to obovate-oblong, 50-110 × 15-30 cm, base truncate to deeply cordate or auriculate, apex acute to short-acuminate or obtuse; surfaces abaxially chalky white, sometimes pale green to glaucous, pilose, adaxially deep green, glabrous. Flowers solitary, fragrant, 35-40(-50) cm across; spathaceous bracts 2, outer bract abaxially rusty gray, inner bract thinner, glabrous; tepals creamy white, glandular, innermost whorl purple-blotched at base, outermost segments strongly reflexed, greenish; stamens (300-)350-580, 12.5-24.5 mm; filaments white; pistils 50-80. Follicetums globose-ovoid, 5-8 × 5-7 cm; follicles short-beaked, distally appressed silky-pubescent. Seeds ± ovoid, 10-12 mm, pointed, aril orange-red. 2 n =38.
More
Tree to 15 m; twigs tomentose; winter terminal bud 3–5 cm, tomentose; lvs deciduous, thin, obovate or pandurate, very large, mostly 5–10 dm, acute or obtuse, concavely narrowed from above the middle to a broad base that is prolonged into short, broadly rounded basal lobes, the lower surface strongly glaucous and finely hairy; fls fragrant; pet 6, elliptic to elliptic-obovate, 12–18 × 4–9 cm, white with a rosy basal spot; style thick, persisting as a beak on the tomentose follicle; fr-cone globose or ovoid, 5–10 cm thick; 2n=38. Rich woods, chiefly in the mts.; Appalachian region from Va., Ky., and s. O. to n. Ga., w. to Ark. and La. May, June.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 5.75
Mature height (meter) 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.8
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Usually growing in isolated groups of a few individuals in sheltered deep rich woods, often in ravines and river valleys.
Light 4-8
Soil humidity 3-7
Soil texture 2-5
Soil acidity 3-6
Soil nutriment -
Hardiness (USDA) 6-8

Usage

Uses environmental use fiber gene source material medicinal wood
Edible -
Therapeutic use Analgesic (bark), Antidiarrheal (bark), Gastrointestinal Aid (bark), Respiratory Aid (bark), Toothache (bark), Gastrointestinal Aid (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs stratification.
Mode cuttings seedlings
Germination duration (days) 120
Germination temperacture (C°) 10
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Magnolia macrophylla habit picture by Eli Small (cc-by-sa)
Magnolia macrophylla habit picture by steven Levenberg (cc-by-sa)
Magnolia macrophylla habit picture by Eli Small (cc-by-sa)

Leaf

Magnolia macrophylla leaf picture by Lisa Groves (cc-by-sa)
Magnolia macrophylla leaf picture by Matthias Foellmer (cc-by-sa)
Magnolia macrophylla leaf picture by Tiby (cc-by-sa)

Flower

Magnolia macrophylla flower picture by juliusfresh (cc-by-sa)
Magnolia macrophylla flower picture by Kym Nguyen (cc-by-sa)
Magnolia macrophylla flower picture by Juan Haro (cc-by-sa)

Fruit

Magnolia macrophylla fruit picture by Matthias Foellmer (cc-by-sa)
Magnolia macrophylla fruit picture by Matthias Foellmer (cc-by-sa)
Magnolia macrophylla fruit picture by Jackie CD (cc-by-sa)

Distribution

Magnolia macrophylla world distribution map, present in Åland Islands, Cuba, Dominica, Georgia, Haiti, Nicaragua, Puerto Rico, and United States of America

Conservation status

Magnolia macrophylla threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:30417720-2
WFO ID wfo-0000233262
COL ID 3XHDY
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Metamagnolia macrophylla Magnolia macrophylla

Lower taxons

Magnolia macrophylla var. ashei Magnolia macrophylla var. dealbata Magnolia macrophylla var. macrophylla