Juglans ailanthifolia 1 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 13 Lund Bot Garden 150520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 2 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 7 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 8 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 10 N of Polygyros, Greece 050526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 6 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 10 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 11 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 12 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 14 Lund Bot Garden 150520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 15 Lund Bot Garden 150520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 16 Lund Bot Garden 150520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 3 Lund Bot Garden 070516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 4 Lund Bot Garden 070516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 5 Lund Bot Garden 070516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 6 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans ailanthifolia 9 Lund Bot Garden 130603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans californica 1 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans californica 2 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans californica 3 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans californica 4 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans californica 5 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans californica 6 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 1 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 2 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 3 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 4 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 5 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 7 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 8 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Juglans regia 9 (cult) Limhamn Sk 070505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).