Drosera huegelii
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Drosera huegelii (Image: www.inaturalist.org) |
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Drosera huegelii is a carnivorous plant belonging to the genus of the sundew ( Drosera ) and wasfirst describedby Stephan Ladislaus Endlicher in 1837.
description
Drosera huegelii is an upright, hairless, up to 45 cm high plant that often leans on nearby plants. On the lower part of the stem axis there are some small, awl-shaped bracts. The 10 to 20 catch leaves are distributed at the upper end of the upright stem axis.
The leaf blades are very broad, grape-shaped, drooping downwards, 5 to 8 mm in diameter, deeply concave and 4 to 6 mm long. Longer tentacle glands are located along the edge. Smaller tentacle glands inside. The leaf stalks are slender, pointed and 10 to 15 mm long.
Flowering time is from June to September. The panicle-shaped inflorescence sits at the top of the plant and consists of 3 to 12 creamy white flowers on 4 to 20 mm long, hairless flower stalks . The awl-shaped bracts are located near the axils of the flower stalks. The sepals are green, egg-shaped , 5 mm long and 2 mm wide. The edges and tips are fringed and covered with narrow, awl-shaped attachments, which are crowned with a small, 1.3 mm long, reddish gland. The surface is dotted with black. The petals are obovate , 10 mm long and 5 mm wide with trimmed and serrated tips. The 5 stamens are 2 mm long. The stamens are white, the anthers are white, and the pollen is yellow. The ovary is green, obovate, indented, 1.5 mm in diameter and 1 mm long. The 3 styluses are white, 0.5 mm long and form a kind of thickened column in the lower half from the base. The upper half expands into many slightly divided segments up to three times the thickness of the column. The scars are white, ragged, and form a compact cluster at the end of each stylus.
The tuber is white, spherical, has a diameter of around 10 mm and is wrapped in a paper-like leaf sheath. It is located on a 5 cm long, vertical branch. Like all so-called "Tuberous Drosera", it retreats into this tuber at times of high temperatures and relative dryness and survives underground.
Distribution, habitat and status
The species is endemic to the area near Albany and Augusta in southwest Australia. It thrives there on the edges of swamps and winter-humid depressions on sandy soils that dry out in summer.
Systematics
Drosera huegelii belongs to the subgenus Ergaleium , Ergaleium section, i.e. to the climbing bulbous drosera. This species is easy to recognize by the deeply concave, bell-shaped catch leaves.
literature
- Allen Lowrie : Carnivorous Plants of Australia. Volume 1. University of Western Australia Press, Nedlands 1987, ISBN 0-85564-253-X , p. 32.