*Arnica diversifolia Greene
*Arnica latifolia var. viscidula
Common Names: Rayless arnica
Other Names: Sticky leaf arnica,Arnica ovata
Habitat ; Arnica diversifolia is native to western Canada (Yukon, Alberta, British Columbia), and the western United States (Alaska, Washington, Oregon, California, Nevada, Utah, Idaho, Montana, Wyoming, Colorado). It grows on rocky places from moderate to high elevations in mountains
Arnica diversifolia is a perennial herb growing 6–24 inches. Erect. Stems 1 to several, unbranched, with sticky gland-bearing hairs. Leaves triangular, irregularly toothed; 3–4 pairs along stem, with largest pair 1–3 in. long and in the middle. Lower leaves on petioles; upper leaves sessile. Flower heads 1–5 in cluster, 8–13 ray flowers less than 1 in. long in head. Flower heads are yellow, with both ray florets and disc florets.
Flowering Time: All Summer
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The flowers are hermaphrodite (have both male and female organs) and are pollinated by Apomictic, insects.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. This is a convenient name for a complex of apparent hybrids involving A. mollis or A. amplexicaulis with A. cordifolia or A. latifolia. The following notes are based on the general needs of the genus. Prefers a moist, well-drained humus rich soil, preferably lime-free. Prefers a mixture of sand, loam and peat.
Seed – sow early spring in a cold frame. Only just cover the seed and make sure that the compost does not dry out. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse or cold frame for their first winter. Plant out in late spring or early summer. Division in spring
Antiecchymotic, antiphlogistic, nervine, sternutatory, vulnerary.
Other Uses : This plant is used as a hair conditioner. No further details are found.
Known Hazards: The whole plant is toxic and should only be used for external applications to unbroken skin[
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.