Drosera madagascariensis

Drosera madagascariensis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Droseraceae
Genus: Drosera
Subgenus: Drosera subg. Drosera
Section: Drosera sect. Drosera
Species:
D. madagascariensis
Binomial name
Drosera madagascariensis

Drosera madagascariensis is a carnivorous plant of the sundew genus (Drosera). It was described in 1824 by A. P. de Candolle and is native to Africa.

Description

Drosera madagascariensis is a robust stem-forming species with a clearly visible stem, which stands upright in the case of younger plants and either uses its leaves to anchor itself to surrounding vegetation as it matures or bends over and forms a scrambling stem.

Leaves

The plant grows to a height of 25 cm (10 in). The upper part of the plant is composed of carnivorous leaves while the lower part of the stem is covered with the dried remains of older leaves. The leaf arrangement on the stem is alternate. The petioles are 1.5–3 cm long and support 10–15 mm long and 7 mm wide obtuse to spatulate laminae. The root system is relatively undeveloped, serving mainly as an anchor and for water absorption, since nutrient uptake is achieved through carnivory.

Flowers and fruit

Drosera madagascariensis flower

Drosera madagascariensis forms one or two slightly pubescent inflorescences which are 20–40 cm (8–15.5 in) tall and bear 4-12 flowers on 2–5 mm long peduncles. The sepals are ovate and slightly pubescent. The pink petals are obovate, 6–12 mm (0.24–0.47 in) long and 4–6 mm wide. The seed capsules are dehiscent and bear numerous seeds up to 0.6 mm long.

Distribution

Drosera madagascariensis is native to the tropical Africa (Guinea, Nigeria, Cameroon, Congo, Angola, Zambesi, Tanganyika) as far south as South Africa and east to the island of Madagascar. It is found in swamps and sphagnum bogs.

References

  • Ludwig Diels: Droseraceae. in Engler, A. (Hrsg.): Pflanzenr. 4, 112 : 109, 1906
  • A.A. Obermeyer: The Flora of Southern Africa Vol. 13.
Wikimedia Commons has media related to Drosera madagascariensis.
  • Dressler, S.; Schmidt, M. & Zizka, G. (2014). "Drosera madagascariensis". African plants – a Photo Guide. Frankfurt/Main: Forschungsinstitut Senckenberg.

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