Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Physical Description

Morphology

Description

Trees , deciduous, often multitrunked, to 15 m. Bark gray, smooth. Pith homogeneous. Twigs and foliar buds glabrous. Leaves crowded in terminal whorl-like clusters; stipules (4-)6.6-9.4(-10) × 2.6-3.7 cm, abaxially red glandular, sparsely pilose. Leaf blade elliptic-oblong to narrowly obovate, or oblanceolate, (10-)26-57(-70) × (7.2-)10-30 cm, thin, broadest near middle, base cuneate to long-tapered, apex very short to long-acuminate or abruptly acute, rarely apiculate; surfaces abaxially densely pilose, especially on midvein, adaxially green, glabrous. Flowers malodorous, 5.5-11 cm across; spathaceous bracts 2, abaxially glandular; tepals spreading, creamy white, outermost whorl sepaloid, reflexed, greenish; stamens 81-103(-115), 8-17 mm; filaments purple; pistils (45-)53-66(-73). Follicetums cylindric to ovoid-cylindric, 6-10 × 2-3.5 cm; follicles long-beaked, glabrous. Seeds lenticular to nearly ovoid, 9-12 mm, aril deep pink to red. 2 n =38.
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Diagnostic Description

Synonym

Magnolia virginiana Linnaeus var. (d) tripetala Linnaeus, Sp. Pl. 1: 536. 1753; Kobus tripetala (Linnaeus) P. Parmentier; Magnolia frondosa Salisbury; M. umbrella Desrousseaux; M. umbrella var. tripetala (Linnaeus) P.Parmentier
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Ecology

Habitat

Comments: Moist soils high in humus, especially protected ravines, along streams, and on lower mountain slopes (Elias, 1980).

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Habitat & Distribution

Flowering spring. Rich woods and ravines, mainly in uplands, rarely coastal plain; 0-1065m; Ala., Ark., Fla., Ga., Ind., Ky., Md., Miss., N.C., Ohio, Okla., Pa., S.C., Tenn., Va., W.Va.
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N5 - Secure

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Abundant in NC, WV, TN, and KY, and can be found in mountainous areas of at least twelve additional states.

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Notes

Comments

In Virginia Magnolia tripetala is a disjunct in the coastal plain. 

 The malodorous flowers of Magnolia tripetala are uniquely associated with this species. The tree is occasionally cultivated. Both filiform and flagelliform trichomes occur on the leaves. Sometimes cylindric trichomes also occur.

The largest known tree of Magnolia tripetala , 15.2m in height with a trunk diameter of 87 cm, is recorded from Bucks County, Pennsylvania (American Forestry Association 1994).

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