Cliffrose

Cowania mexicana

Physical Characteristics

Cowania mexicana is an evergreen Shrub growing to 2 m (6ft 7in). See above for USDA hardiness. It is hardy to UK zone 9. It is in leaf all year, in flower in April, and the seeds ripen in October. The species is hermaphrodite (has both male and female organs). Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil.

Distribution

South-western N. America - Utah to California and Colorado, south to central Mexico.

Habitats

Woodland Garden Sunny Edge; South Wall. By. West Wall. By.

Edible Uses

None known

Medicinal Uses

Antiarthritic Antiseptic Expectorant Laxative Skin A decoction of the green branches, together with sagebrush (Artemisia spp) and juniper (Juniperus spp) has been used as an expectorant and laxative treatment for colds[257]. A decoction of the leaves and flowering stems has been used to treat venereal disease and pains over the kidneys[257]. The leaves have been chewed in the treatment of arthritis[257]. The leaves have been made into a tea for bathing and cleansing the skin[257]. It is an antiseptic wash, used for treating smallpox or measles[257].

Known Hazards

None known