Dracaena (Sansevieria parva) 6 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria parva) 7 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 1e (cult) Magaluf, Mallorca 110423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 2a Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 2b Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 2c Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 2d Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 1 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 2 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 3 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 4 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 5 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 6 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena cylindrica 7 (cult) Lund Sk 170517 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 1 Las Tricias, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 10 Las Tricias, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 11 Las Tricias, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 2 Las Tricias, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 3 Mirador de la Tosca, La Palma 070417 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 4 S of Puntagorda, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 6 S of Puntagorda, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 7 S of Puntagorda, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 8 S of Puntagorda, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 9 S of Puntagorda, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena pethera 2 (cult) Stångby Sk 2107, - Photo: Rune Svensson (© 2014 Jan Thomas Johansson).

Dracaena pethera 3 (cult) Stångby Sk 2107, - Photo: Rune Svensson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria hallii) 1 Copenhagen Bot Garden 140129 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria hallii) 2 Copenhagen Bot Garden 140129 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria parva) 1 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria parva) 2 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria parva) 3 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria parva) 4 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria parva) 5 Lund Bot Garden 150304 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria trifasciata) 1 (cult) Gran Canaria 080406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria trifasciata) 2 (cult) Gran Canaria 080406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena (Sansevieria trifasciata) 3 (cult) Gran Canaria 080406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 1a (cult) Magaluf, Mallorca 110423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 1b (cult) Magaluf, Mallorca 110423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 1c (cult) Magaluf, Mallorca 110423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena 1d (cult) Magaluf, Mallorca 110423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena draco 5 S of Puntagorda, La Palma 070420 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena kirkii 1 Lund Bot Garden 130921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena kirkii 2 Lund Bot Garden 130921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Dracaena pethera 1 (cult) Stångby Sk 2107, - Photo: Rune Svensson (© 2014 Jan Thomas Johansson).