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Liriodendron tulipifera 'Ardis'click image to enlarge

ha: more compact with shorter internodes than species typical
lw: 1/3 to 1/2 size of species typical
lt: blades thicker than species typical
lc: slightly darker yellow-green than species typical, perhaps because they leaves are thicker and more chlorophyll density
la: many leaves have a small extension of the midrib into the terminal cleft. It seems more noticeable and common in this clone.
or: selected by Dr. J.C. McDaniel IL USA

Liriodendron tulipifera 'Arnold' = 'Fastigiatum'

ns: this name has been used in the American trade, especially by Monrovia Nursery. It arose to denote the
ns: origin of the stock at the Arnold Arboretum

Liriodendron tulipifera 'Aureomarginatum'click image to enlarge

lc: margined yellow to chartreuse, usually with a very irregular (sharply lobed) green center. Young plants may be
lc: easily 70% yellow, very bright, and cheerful. In some climates at least it is nearly all green or not as boldly contrasting by summer. We suspect the marginal chimera is
lc: what is called "virescent", meaning becoming green. It all but vanishes in the large tree at the Raulston Arboretum. Best effect in early spring.
aw: RHS AM 1974

Liriodendron tulipifera 'Aureopictum' = 'Mediopictum'


Liriodendron tulipifera 'Compactum'

ha: semi-dwarf, compact, possibly more suitable for smaller gardens
lw: 1/2 size of species typical

Liriodendron tulipifera 'Contortum' ('Tortuosum'?)

st: slightly contorted
ls: twisted or more undulate leaves

Liriodendron tulipifera 'Crispum'

ls: blades crisped or twisted.

Liriodendron tulipifera 'Fastigiatum' ('Arnold', 'Pyramidale')'Fastigiatum' (background) thriving in the same scorching North Carolina sun as these Agave and Opuntia. It is one of the finest columnar trees and deserves more widespread use. Click on this image for larger, fullscreen version.

ht: 50-60 ft. tall x 15-20 ft. wide, usually widest at the base when older.
ha: fastigiate in youth becoming columnar (wider) with age. Older trees may split due to narrow crotch angles but
ha: this is generally not severe.
ns: some consider 'Arnold' to be a different clone but historically the plants at the Arnold Arboretum are linked to
ns: to 'Fastigiatum'. Distinctions between the two, if any, are undocumented to our knowledge.

Liriodendron tulipifera 'Flashlight'

ns: listed name for a variegated clone. Description needed. Please contact the society if you know this plant.

Liriodendron tulipifera 'Florida Strain'

ha: vigorous
fq: blooming at a young age
ls: rounded lobes
or: Louisiana Nursery USA

Liriodendron tulipifera 'Glen Gold'

lc: light lemon yellow all summer.
or: Australia

Liriodendron tulipifera 'Integrifolium'

lc: unlobed or far less deeply lobed than species typical, often forming rectangular or square shapes.

Liriodendron tulipifera MAJESTIC BEAUTY™

lc: margined yellow to chartreuse
in: a named clone of 'Aureomarginatum' offered by Monrovia Nursery CA USA

Liriodendron tulipifera 'Mediopictum' ('Aureopictum')

lc: centered or blotched yellow.

Liriodendron tulipifera 'Pyramidale' = 'Fastigiatum'


Liriodendron tulipifera 'Ramapoo' ('Ramapo')

ls: unlobed to rounded
ns: a clone of the 'Integrifolium' type and perhaps a synonym of it.

Liriodendron tulipifera 'Variegatum'

ls: variegated (mottled?) yellow