Liriodendron L.

Tulip trees (en), Tulipier (fr)

Genus

Angiosperms > Magnoliales > Magnoliaceae

Characteristics

Trees, deciduous. Bark grayish white, longitudinally fissured, falling off in small masses. Winter buds ovoid, surrounded by 2 connate stipules. Stipules free from petiole. Leaves spirally arranged, folded and pendulous in buds; petiole long; leaf blade with 1 or 2 lateral lobes near base, apex truncate to emarginate. Flowers terminal, solitary, bisexual, not fragrant, appearing at same time as leaves. Tepals 9, in 3 whorls, subequal. Anthers dehiscing extrorsely. Gynoecium sessile; carpels many, spirally arranged, distinct, basal ones sterile; ovules 2 per carpel, pendulous. Fruit fusiform; mature carpels woody, falling off from torus when matured; testa fused with endocarp, apex elongated winglike; torus persistent. Seeds 1 or 2 per carpel; testa thin and dry.
More
Trees , deciduous. Pith diaphragmed. Leaves distinctly alternate, not in false terminal whorl; stipules tardily deciduous on summer shoots, free. Leaf blade evenly (2-)4-6(-10)-lobed, base rounded to shallowly cordate or truncate, apex broadly truncate or notched; surfaces abaxially glaucous, adaxially lustrous, smooth. Flowers protogynous, appearing with the leaves; tepals (7-)9, petaloid, tip recurved, greenish yellow with feathered orange band or blotch near base, outermost tepals sepaloid, reflexed, green; stamens on short torus, tardily deciduous, whorled; filaments 1/3-1/2 length of extrorse anthers. Samaras deciduous, indehiscent, in elongate, spindle-shaped, dry cone. Seeds adherent to dry endocarp. x =19.
Sep 3, soon reflexed; pet 6, erect, broadly ovate, forming a cup-shaped cor; anthers extrorse; pistils many, on an elongate receptacle, ripening into a cone of dry, samaroid, eventually deciduous frs; deciduous trees with simple, 4-lobed lvs and large but inconspicuously colored fls. 2, the other in e. Asia.
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Growth form tree
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Foliage retention deciduous
Sexuality hermaphrodite
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Environment

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Hardiness (USDA) 4-9

Usage

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Edible -
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Cultivation

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Germination duration (days) 60 - 365
Germination temperacture (C°) 18 - 23
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Images

Liriodendron unspecified picture
Liriodendron unspecified picture

Distribution

Liriodendron world distribution map, present in Åland Islands, China, Micronesia (Federated States of), Georgia, Malaysia, Nicaragua, United States of America, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:30197365-2
WFO ID wfo-4000021939
COL ID 8VYYL
BDTFX ID 86715
INPN ID 194201
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Liriodendron

Lower taxons

Liriodendron tulipifera Liriodendron chinense