Drosera lasiantha
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Drosera lasiantha , flower |
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| Drosera lasiantha | ||||||||||||
| Lowrie & Carlquist |
Drosera lasiantha is a species of the genus sundew . It wasfirst describedin 1992 .
description
Drosera lasiantha is a perennial, herbaceous plant with a dense rosette of up to 1.5 centimeters in diameter on a trunk up to 4 centimeters high, from which the dried up leaves of previous years hang down. The species has a weakly branched fibrous root .
The leaf stalks, which are bare on top, densely covered with glands on the underside and sides, are up to 7.5 millimeters long, around 1 millimeter wide at the base, tapered to just under 0.5 millimeters at the base of the leaf blade and rounded oblong in cross-section. The blade is elliptical, 3 millimeters long, 2 millimeters wide, covered with (seated) glands on the underside and with glandular hairs on the edge.
In October / November the plant forms one to four woolly hairy inflorescences, which protrude up to four centimeters above the plant. They each carry up to twelve dark pink, short-stalked flowers in the form of a wrap . The petals have a length of up to 6.5 millimeters. The pollen is yellow.
Like all dwarf sundew, it reproduces vegetatively via brood sheds .
Distribution and location
Only a few locations north of Albany in southern Western Australia around the Porongurup National Park are known of the species. It is found there on laterite soils in open heather .
Systematics
Drosera lasiantha is one of the so-called "dwarf sundew", a large group of extremely small sundew species, which form the Bryastrum section within the sundew genus . It is closely related to Drosera scorpioides and Drosera dichrosepala .
literature
- Allen Lowrie : Carnivorous. Plants of Australia. Volume 3. University of Western Australia Press, Nedlands 1998, ISBN 1-875560-59-9 .
