Drosera hamiltonii

Drosera hamiltonii, flower

Drosera hamiltonii is a carnivorous plant in the genus Sundew ( Drosera ). It occurs only in a small area in the extreme southwest of Australia.

Description

Drosera hamiltonii is a perennial, herbaceous plant that forms a short rhizome a basal rosette. Your well- developed root system consists of black, thick and branched roots.

The rosette reached a diameter of 4 to 6 cm. It has spatulate, 3 to 4 inches long catch leaves with a width of up to 1 inches, and tapering to 4 mm long and 3 mm wide petiole. On the flat leaf surface neither midrib or veins are visible. The tentacles are uniformly distributed on the leaf surface, the lower leaf surface is hairless.

Flowering time in its natural habitat is from November to December. The flowers open only once every two days. The very hairy and dark suffused, 30 to 40 centimeters ( occasionally to 75 centimeters) long flower stalk bears a grape twenty to thirty pink flowers with glandular hairs occupied, 3-5 mm long pedicles. The narrow - ovate sepals are 7.5 millimeters long and 3 millimeters wide, schwarzgefleckt and scattered occupied with cylindrical rotkopfigen glandular hairs. The dunkelrosanen, very broad inverted egg-shaped petals are 1.6 inches long and 2.2 inches wide, the Vein stands out on the bottom by a darker color from. The edges are simple, irregularly notched at the extremity.

The five stamens are up to 5.5 mm long, the filaments white, anthers as well as the pollen yellow. The five 2.2 -millimeter-long pen of the flower are fused along, the purple scars lanceolate, 0.8 mm long and 0.4 mm wide, papillose on the upper edges, and at the far end.

Dissemination

To find this species only in the extreme southwest of Australia along the coast between Albany and Augusta on wet peat soils in marshes and along the banks of rivers.

It thrives there associated with plants such as Utricularia paulineae, Utricularia menziesii, the dwarf pitcher ( Cephalotus follicularis ) and Drosera pulchella under dense vegetation.

Through agricultural activities habitats are increasingly being destroyed and the stock is in danger. A protection status, however, does not exist yet.

System

The species was first described in 1903 by Cecil blind Payton Andrews. Within the genus it belongs in the section Drosera. Phylogenetic analyzes they see as part of a smaller clade among other Drosera Drosera indica and adelae.

Evidence

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