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Common Name: Hairy Gumweed
Grindelia humilis is a perennial plant that can grow up to 1.50 metres tall.
It is harvested from the wild for local use as a medicine and source of materials..
Southwestern N. America - northern California.
Coastal salt marshes[
Succeeds in any well-drained soil in full sun[
]. Does well on dry sandy banks and in poor soils[
This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c[
This plant is one of several species that are not recognised as distinct species in the Flora of North America, being treated instead as geographic forms and therefore synonyms of G. hirsutula[
]. For the time being, these species are being maintained as distinct in this database[
There is some confusion over the correct name for this species. The report on medicinal uses in [
] relates to G. cuniefolia, a name that has been used by two authors. G. cuniefolia. non Nutt. is said to be a synonym of G. humilis and so the entry has been made here.
The dried leaves and flowering tops are antiasthmatic, expectorant and sedative[
]. The principal use of this herb is in the treatment of bronchial catarrh, especially when there is an asthmatic tendency[
]. The active principle is excreted from the kidneys, and this sometimes produces signs of renal irritation[
The plant has been used in the treatment of itching skin eruptions caused by contact with poison oak (Rhus spp.)[
A homeopathic remedy is prepared from the leaves and flowering stems[
Yellow and green dyes are obtained from the flowering heads and pods. Aromatic.
Seed - sow autumn or spring in a cool greenhouse and only just cover the seed. Prick out the plants into individual pots when they are large enough to handle and plant them out into their permanent positions in early summer.