White Clematis, Western white clematis, California clematis,

Clematis ligusticifolia

Physical Characteristics

Clematis ligusticifolia is a deciduous Climber growing to 5 m (16ft 5in). See above for USDA hardiness. It is hardy to UK zone 5. It is in flower from August to September, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Distribution

Western N. America - Alberta and British Columbia south to California and New Mexico.

Habitats

Woodland Garden Dappled Shade; Shady Edge;

Edible Uses

None known

Medicinal Uses

Analgesic Contraceptive Eczema Febrifuge Miscellany Odontalgic Poultice Skin Stomachic Tonic VD White clematis was employed medicinally by a number of native North American Indian tribes who used it to treat a variety of complaints, but especially as an external application on sores etc[257]. It is rarely used in modern herbalism but probably merits investigation[K]. A decoction of the plant is used to treat colds and sore throats[212, 257]. It has also been used as a general tonic when feeling out of sorts[257]. An infusion of the white bark has been used as a febrifuge[213, 257]. An infusion of the roots has been used to treat headaches and stomach aches[257]. A poultice of the foliage has been used to treat chest pains and rheumatic joints[257]. An infusion of the plant has been used as a wash for skin eruptions, sores, wounds, backaches, swollen limbs, tired feet, syphilitic sores, eczema etc[257]. The stalks and roots have been used to make a woman's contraceptive[257]. A poultice made from the cut stems has been applied to the teeth for treating toothache[257]. A poultice of the mashed, moistened seeds has been applied to severe burns[257].

Known Hazards

Although no reports of toxicity have been seen for this species, some if not all members of this genus are mildly poisonous. The toxic principle is dissipated by heat or by drying[65].