Pachypodium rutenbergianum
| Pachypodium rutenbergianum | ||||||||||||
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Pachypodium rutenbergianum |
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| Scientific name | ||||||||||||
| Pachypodium rutenbergianum | ||||||||||||
| Vatke |
Pachypodium rutenbergianum is a plant type from the genus Pachypodium in the family of Hundsgiftgewächse (Apocynaceae).
description
Pachypodium rutenbergianum is a 3 to 8 m high tree . The trunk reaches a diameter of 60 cm at the base and is bottle-shaped or tapering towards the top. A sparse crown of thick forked branches forms at its tip. The plant is covered with short, conical thorns , with a third, shorter thorn between two 2 to 15 mm long thorns. The leaves are hairless, they are 16 cm long, 4.5 cm wide and have a short stalk.
The flowers are in groups at the shoot tips. They are colored white, 4 to 6 cm long and 3.5 to 7 cm wide. The corolla tube has a diameter of up to 6 mm. The crown lobes are inclined and have a curled edge.
The fruits are cigar-shaped, 16 cm long and 1.5 to 6 cm wide. The seeds have a size of 12 mm.
distribution
The species is endemic to Madagascar .
Systematics
The species was first described in 1885 by Wilhelm Vatke .
Three varieties can be distinguished within the species:
- Pachypodium rutenbergianum var. Meridionale H.Perrier ,
- Pachypodium rutenbergianum var. Rutenbergianum
- Pachypodium rutenbergianum var. Sofiense Poiss. Some authors also regard it as an independent species: Pachypodium sofiense (Poiss.) H.Perrier .
proof
literature
- DG Rowley: Pachipodium . In: Urs Eggli (Ed.): Illustrated Handbook of Succulent Plants: Dicotyledons . Springer Verlag, 2002, ISBN 978-3-540-41966-2 , p. 15.
Individual evidence
- ^ In: Treatises published by the Natural Science Associations in Bremen. Bremen, Volume 9, p. 125, 1885 online at biodiversitylibrary.org, accessed on October 3, 2018.
