Drosera ordensis

Drosera ordensis

Drosera ordensis is a carnivorous plant from the family of sundew plants ( Droseraceae ). It is found only in a small area in northern Australia's Northern Territory.

Description

In Drosera ordensis are perennial herbaceous plant that forms clumps down to earth rosettes. The leaves are pressed flat to the earth to upwards pointing, the densely with long, wooly, white hair occupied on both sides petioles are reversed - lanceolate, at flowering time 35 to 50 millimeters long (later larger), 0.5 to 1 mm wide at the approach, 2-4 mm wide tapering to the tip and at the base of blade to 0.8 to 1 millimeter width. The nearly round leaf blades are 3-4 mm long, 3.5 to 5 millimeters wide, her top is open at the edge with a little longer, shorter muzzle middle tentacles, their underside is densely covered with long, wooly, white hair.

The densely with long, wooly, white hair occupied inflorescence axes are 20 to 45 inches long and have a grape numerous flowers, the flower stalks are 3 to 12 millimeters long and are ripe upright. The sepals are obovate, 2.5 to 5 mm long and 1.2 to 3 millimeters wide. The petals are colored in various shades of pink to purple to almost white, with strongly pronounced midrib, obovate and 7 to 10 mm long and 3.5 to 6 millimeters wide.

The stamens are 3.5 to 4 millimeters long. The ovary is wound, 1 to 1.5 millimeters long, in the heyday 1.5 to 1.7 mm in diameter and with three bilobed carpels. The three pens are often forked, 2,7 to 3 millimeters long and end in narrow ovoid scars.

Distribution and location

Home of Drosera ordensis is the metropolitan area, about 50 kilometers to Kununurra (Western Australia, Northern Territory ) in the tropical north of Australia, where it grows in savannas on sandy soils of sandstone under sorghum species that provide light shading. Drosera ordensis found there, especially in sinks or on large rock formations that remain moist in the dry season to last. With the extremely dense pubescence collect the plants condensing humidity and morning dew to satisfy their fluid intake needs.

System

The closest related species is Drosera lanata. The specific epithet refers to the Ord River, on the 1951 Drosera ordensis was first found. However, it was first described in 1994 by Allen Lowrie basis of a find of 1988. The species belongs to the so -called " petiolaris complex", which is the section of the genus Lasiocephala.

Pictures

Flower

Top view

Leaf (detail)

Evidence

• Allen Lowrie: Drosera ordensis ( Droseraceae ), a new tropical species of carnivorous plant from northern Australia. In: Nuytsia 9:3, 1994, pp. 363-367.