Anacardiaceae FAMILY

Rhus trilobata

Edibility

3/5

Medicinal

2/5

Safety & Hazards

The genus Rhus is being treated in its strict sense here, so it excludes the many species with highly toxic and irritant sap (these are included in Toxicodendron). Although the two genera are very similar, it is relatively simple to distinguish which is which, the poisonous species (Toxicodendron) have axillary panicles and smooth fruits whilst non-poisonous species (Rhus) have compound terminal panicles and fruits covered with acid crimson hairs[ 1 Title RHS Dictionary of Plants plus Supplement. 1956 Publication Author F. Chittendon. Publisher Oxford University Press Year 1951 ISBN - Description Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]). , 4 Title A Modern Herbal. Publication Author Grieve. Publisher Penguin Year 1984 ISBN 0-14-046-440-9 Description Not so modern (1930's?) but lots of information, mainly temperate plants. ]. Whilst the genus Rhus in this treatment is generally seen as having a non-toxic sap there are some suggestions that the sap of some species in the genus (including this one) can cause a skin rash in susceptible people.

Botanical Description

Rhus trilobata is an erect to spreading, deciduous shrub with a dense crown; it usually grows from 50 - 250cm tall, though in its most favourable habitats it can reach 360cm. The plant only occasionally forms suckers, though in the event that the top growth is damaged, it can sprout freely[ 277 Title Plants Database Publication Author Website http://plants.usda.gov/java/factSheet Publisher United States Department of Agriculture Year 0 ISBN Description An online database with an excellent collection of fact sheets about native N. American plants. , 1050 Title Fire Effects Information System Publication Author Website http://www.feis-crs.org/feis/ Publisher Year 0 ISBN Description An on-line information site with comprehensive information on over 1,100 species of plant. Mainly developed to supply information on the effects of fire on plants and animals, it also contains a wealth of other information on the plants ]. The plant is harvested from the wild for local use as a food, medicine and source of materials. It is sometimes grown as an ornamental, valued especially for its autumn leaf display[ 277 Title Plants Database Publication Author Website http://plants.usda.gov/java/factSheet Publisher United States Department of Agriculture Year 0 ISBN Description An online database with an excellent collection of fact sheets about native N. American plants. ].

Habitat & Origin

Origintemperate

Native RangeWestern and central N. America - Alberta and Saskatchewan, south to California and Texas, through western Mexico to Colima

HabitatFoothills, canyons, slopes etc, usually on dry rocky soils[ 62 Title A Field Guide to N. American Edible Wild Plants. Publication Author Elias. T. and Dykeman. P. Publisher Van Nostrand Reinhold Year 1982 ISBN 0442222009 Description Very readable. ] and especially on limestone outcrops[ 149 Title Trees of Central Texas. Publication Author Vines. R. A. Publisher University of Texas Press Year 1987 ISBN 0-292-78958-3 Description A good concise guide, it gives details of habitats and some of the uses of trees growing in Texas. ].