Oxytropis andaensis P.H.Huang & L.H.Zhuo
Oxytropis arenaria Jurtzev
Oxytropis chankaensis Jurtzev
Oxytropis hailarensis Kitag.
Oxytropis hulunbailensis H.C.Fu & S.H.Cheng
Oxytropis lanata psilocarpa Kitag.
Oxytropis selengensis Bunge
Oxytropis verticillaris Ledeb.
Phaca oxyphylla Pall.
Oxytropis oxyphylla is a stemless, herbaceous perennial plant arising from a subterranean long-branched multiheaded caudex; it produces a tuft of growth 7 - 20cm tall[
The plant is harvested from the wild for local use as a medicine.
We have no information for this species, but several members of this genus are known to be potentially toxic, particularly to grazing animals.
Some members of the genus are known to contain the indolizidine alkaloid 'swainsonine'. Chronic intoxication with this alkaloid causes a variety of neurological disorders in grazing animals along with reduced appetite which can lead to weight loss and cessation of reproductive ability. Swainsonine has also been found to have potential for use in anti-cancer drug treatments.
In some species, other alkaloids are suspected of causing toxicity.
In addition, some members of the genus have been reported to accumulate selenium - although this is an essential trace element it can be toxic in higher doses. Signs and symptoms of selenium toxicity include a garlic odour on the breath, gastrointestinal disorders, hair loss, sloughing of nails, fatigue, irritability, and neurological damage - in extreme cases it can result in death.
E. Asia - northern China (Gansu, Heilongjiang, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi), Korea
Sandy open hillsides, semistabilized sand dunes, gravelly areas, grasslands; at elevations from 500 - 2,700 metres[
Oxytropis species generally grow best in a very sunny position in a deep, well-drained, sandy or gritty soil[
]. Species with woolly leaves greatly resent winter wet[200[.
Many species in this genus are suitable as ornamentals, valued for their clusters of flowers and their attractive foliage. However, species often fail in cultivation, often because of a lack of an appropriate Rhizobium bacterium[
Members of this genus are generally resentful of root disturbance and, if the seed is not sown in situ, then seedlings need to be planted into their permanent positions as soon as possible[
We have seen no specific information for this species, but most members of this genus have a symbiotic relationship with certain soil bacteria; these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby.
The plant is used to treat cardiovascular diseases, ascites, anthrax[
]. A proprietary medication called 'Oxophil' is obtained from the above-ground parts of the plant. Containing biologically active flavonoids, it has antihypoxic, analgesic, and anti-inflammatory action, and is used in the treatment of rhinitis, and is also said to contribute to the restoration of the affected tissues[
The plant contains coumarins, essential oils, alkaloids, and the following flavonoids: rhamnetin, rhamnazin, and their glycosides[
Pre-soak the seed for 24 hours in warm water and then sow in a greenhouse in early spring. Prick out the seedlings into individual pots as soon as the cotyledons emerge in order to avoid damage to the root. Grow them on in deep pots in a cold greenhouse or cold frame, and plant them out the following spring[