Pachypodium densiflorum
| Pachypodium densiflorum | ||||||||||||
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Pachypodium densiflorum |
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| Pachypodium densiflorum | ||||||||||||
| Baker |
Pachypodium densiflorum is a plant type from the genus Pachypodium in the family of Hundsgiftgewächse (Apocynaceae).
description
Pachypodium densiflorum is a perennial plant , with a strongly thickened trunk , which reaches a height of 70 cm and a diameter of 2 m. A multitude of thick, pointed twigs emerge from the trunk, which are increasingly thickly covered with thorns and finely tomentose, grayish-white hairs. The leaves are up to 10 cm long and 5 cm wide, their underside is hairy.
The flowers are in groups of up to ten on 25 to 40 cm long pedicels . They are deep yellow, only white in cultivars. They have a diameter of 1.5 to 3 cm. The stamens are clearly highlighted in the middle of the splaying corolla lobes .
The fruits are 11 to 15 cm long and 8 mm in diameter. The seeds are 4 to 6 mm long.
Occurrence
The species is endemic to the central part of Madagascar .
Systematics
The species was first described in 1887 by John Gilbert Baker .
Two varieties can be distinguished within the species:
- Pachypodium densiflorum var. Densiflorum
- Pachypodium densiflorum var. Brevicalyx H.Perrier .
Natural hybrids are known with Pachypodium brevicaule ( Pachypodium × rauhii ) and Pachypodium horombense . In addition, a culture hybrid with Pachypodium rosulatum ( Pachypodium × hojnyi ) was grown.
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. 13.
Individual evidence
- ^ The Journal of the Linnean Society. Botany. London, Volume 22, p. 503, 1887 online at biodiversitylibrary.org, accessed October 3, 2018.
