Crenidium spinescens
| Crenidium spinescens | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Crenidium | ||||||||||||
| Haegi | ||||||||||||
| Scientific name of the species | ||||||||||||
| Crenidium spinescens | ||||||||||||
| Haegi |
Crenidium spinescens is a species ofthe nightshade family (Solanaceae). It is the only species in the genus Crenidium .
description
Vegetative characteristics
Crenidium spinescens is an intertwined, branched shrub that can reach a height of 1.7 m. The branches are leafless except for the young shoots, the twigs are prickly and tomentose with hairy trichomes . The narrowly elliptical to linear foliage leaves are sessile, 3 to 10 mm long and 0.5 to 1.5 mm wide. The entire margin of the sheet is slightly rolled up.
Inflorescences and flowers
The hermaphrodite flowers are in zymose inflorescences in the nodes . The small chalice is 1.3 to 2 mm long and has five fine tips. The crown is 2.5 to 4 mm long, narrowly tubular and provided with five ovate to broadly ovate, short and wide corolla lobes. These are just as long or longer than the corolla tube. During the flowering phase, the sexual parts of the flower protrude far beyond the crown. Four or five stamens are formed in two different shapes, if five are present, the fifth is usually sterile. The anthers consist of only one theka 0.8 mm long.
Fruits and seeds
The fruits are egg-shaped capsules from 4 to 4.5 mm in length, they open with crevices in the partition wall. The two subjects are each divided into two parts. Two to four seeds are formed per fruit , they are about 3.5 mm long.
Other specifications
The base chromosome number is . Hyoscyamine was found to be the main alkaloid in the plants, and the leaves also contain anabasine .
Occurrence
The species is endemic to the offshore region of southwest Australia , where it grows in deep sand on the edge of salt lakes.
literature
- Armando T. Hunziker: The Genera of Solanaceae . ARG Gantner Verlag KG, Ruggell, Liechtenstein 2001. ISBN 3-904144-77-4 .