National Collections at West Dean
West Dean Gardens hold two National Collections, that of Liriodendron (Tulip Tree) and Aesculus (Horse Chestnut Tree). Specimen trees can be seen throughout the Gardens and Arboretum.
| AESCULUS (Horse Chestnut Tree) |
| Taxon | | Location |
| A. assamica Griff | | Arboretum |
| A. x arnoldiana Sarg. (A. glabra x A. flava) x A pavia) | | Arboretum |
| A. 'Autumn Splendor' | | Nursery |
| A. x bushii | | Nursery |
| A. x carnea 'Aureomarginata' | | Arboretum |
| A. x carnea 'Batouwe' | | Nursery |
| A. x carnea 'Briottii' | | Grounds |
| A. x carnea 'Marginata' | | Nursery |
| A. x carnea 'Plantierensis' | | Arboretum |
| A. californica (Spach) Nutt. | Californian Buckeye | Arboretum |
| A. chinensis 'Dallimorei' | | Nursery |
| A. flava Sol. | Yellow Buckeye | Arboretum/Grounds |
| A. glabra f. pallida | | Nursery |
| A. glabra var. leucodermis | | Nursery |
| A. glabra var. monticola | | Nursery |
| A. glabra var. sargentii | | Nursery |
| A. glabra Willd | Ohio Buckeye | Arboretum |
| A. x hemiacantha | | Nursery |
| A. hippocastanum L. | Horse Chestnut | Grounds |
| A. hippocastanum 'Baumannii' | | Grounds |
| A. hippocastanum 'Baumannii' | Variegated form | Arboretum |
| A. hippocastanum 'Crispa' | | Nursery |
| A. hippocastanum 'Digitata' | | Arboretum |
| A. hippocastanum 'Hampton Court Gold' | | Nursery |
| A. hippocastanum 'Hampton Court Gold' | | Nursery |
| A. hippocastanum 'Laciniata' | | Arboretum |
| A. hippocastanum 'Memmingeri' | | Nursery |
| A. hippocastanum 'Monstrosa' | | Arboretum |
| A. hippocastanum 'Pyramidalis' | | Arboretum |
| A. hippocastanum 'Umbraculifera' | | Nursery |
| A. x hybrida DC. (A. flava x A pavia) | | Arboretum |
| A. indica (Wallich ex Cambess) | Indian Horse Chestnut | Arboretum |
| A. indica 'Sydney Pearce' | Indian Horse Chestnut | Arboretum |
| A. x marilandica | | Nursery |
| A. x missisipiensis | | Arboretum |
| A. mutabilis 'Harbisonii' | | Nursery |
| A. x mutabilis (Spach) Schelle. 'Induta' (A. pavia var. discolor x A. neglecta) | | Arboretum |
| A. x mutabilis (Spach) Schelle. 'Penduliflora' (A. pavia var. discolor x A. neglecta) | | Arboretum |
| A. x neglecta Lindl. (A. flava x A. sylvatica) 'Erythroblasta' | | Arboretum/Grounds |
| A. parryi' | | Nursery |
| A. parviflora Walt | | Arboretum |
| A. pavia L. | Red Buckeye | Arboretum |
| A. pavia 'Atrosanguinea' | | Arboretum |
| A. pavia var. discolor (Pursh) Torr & Gray | | Arboretum |
| A. pavia 'Koehnei' | | Nursery |
| A. pavia 'Roseanana' | | Arboretum |
| A. splendens Sarg. syn. A. pavia | | Arboretum |
| A. sylvatica Bartr. syn. A. georgiana | | Arboretum |
| A. turbinata | | Nursery |
| A. turbinata 'Aurea' | Japanese Horse Chestnut | Arboretum |
| LIRODENDRON (Tulip Tree) |
| Taxon | | Location |
| L. chinense (Hemsl.) Sarg. | Chinese tulip tree | Grounds |
| L. tulipifera L. | Tulip tree | Grounds |
| L. tulipifera 'Aureomarginatum' | | Grounds |
| L. tulipifera 'Fastigiatum' | | Grounds |
