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| USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3 |
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Summary
Desert gum is a perennial wildflower of the Great Plains and the northern edge of the Southwest, recognised by its slender stems, sparse leaves, and attractive pink to purple flower heads. Unlike grand rushpink, its primary value is not as a leafy vegetable but as a source of natural chewing gum made from its milky latex. It has a long history of traditional use as a natural gum.
Physical Characteristics

Lygodesmia juncea is a PERENNIAL growing to 0.4 m (1ft 4in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 5. It is in flower from June to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
It is noted for attracting wildlife.
Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.
UK Hardiness Map
US Hardiness Map
Synonyms
Homotypic Synonyms: Prenanthes juncea Pursh. Heterotypic Synonyms: Lygodesmia juncea D.Don. Lygodesmia juncea var. racemosa Lunell.
Plant Habitats
Cultivated Beds;
Edible Uses
Edible Parts:
Edible Uses: Gum
Desert gum is an interesting native wildflower whose principal value lies in its traditional use as a natural chewing gum rather than as a food. Although it provides little nutrition, it shows another example of how Native Americans made practical use of plants available in the dry landscapes of the Great Plains and northern Southwest. Its attractive flowers, drought tolerance, and historical significance make it a worthwhile species to know, even if it is unlikely to play more than a minor role in a modern forager's diet [2-3]. The milky latex can be dried and chewed as a natural gum. The leaves are not reported to be edible. Unlike grand rushpink, this species is not recorded as being used as a potherb [2-3]. Edibility Rating: 2 out of 5 – A useful natural chewing gum, but of little nutritional value. Taste and Preparation: The gum produced from its dried milky latex is expected to be similar to that of grand rushpink. Allow the latex to dry naturally before chewing. Based on the closely related grand rushpink, the resulting gum likely has a mild, lettuce-like flavor rather than the sweet taste associated with commercial chewing gum. It serves primarily as a chewing material rather than a source of nourishment [2-3]. Seasonality: Desert gum blooms from June to September. The latex can be collected whenever actively growing plants are producing sap [2-3]. Traditional Uses: People traditionally chewed the dried latex as a natural gum. Although it offers little nutritional value, it provided a readily available chewing material in the dry landscapes where the plant grows [2-3]. Safety: People have traditionally chewed the dried latex as gum. No other parts of the plant are reported to be edible. As always, accurate identification is important before using any wild plant [2-3]. A gum from the seeds is used for chewing[61, 105]. Other reports say that the gum is obtained from the flowering stems[46, 177]. Another report says that the roots were left in the sun until the gum came out and hardened, and this was then used for chewing[257].
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Diuretic Galactogogue Kidney Poultice Tonic
Skeleton weed was employed medicinally by various native North American Indian tribes who used it particularly as a galactogogue[213, 257]. It is little, if at all, used in modern herbalism. The leaves and stems are galactogogue and tonic[213, 257]. An infusion of the stems has been used to promote milk flow in nursing mothers, in the treatment of smallpox, measles, kidney problems, diarrhoea, heartburn and burning coughs and also as a general tonic for children[257]. A poultice of the plant has been applied to bring relief to rheumatic and swollen joints[257]. An infusion has been used as a wash for sore eyes[257]. An infusion of the powdered galls that are found on the plant is diuretic[257].
References More on Medicinal Uses
Other Uses
Gum Hair Insulation
Desert gum is well suited to native wildflower gardens and xeriscapes with sandy, well-drained soils. An infusion of the stems, mixed with oil, has been used as a hair tonic[257]. The crushed stems have been used as foot pads in shoes[257]. The colourful flower heads attract bees, butterflies, and other native pollinating insects. The plant contributes to the biodiversity of native prairie and sandy grassland ecosystems.
Special Uses
References More on Other Uses
Cultivation details
Desert gum grows best in full sun on well-drained sandy soils. It is highly drought-tolerant and well adapted to dry grasslands and sandy plains. Habitat: This species is found primarily on sandy soils of the Great Plains, extending into the high plains of northern New Mexico and neighboring regions. USDA Hardiness Zones: USDA Zones 4–8. Growth Rate: Moderate. Plants spread slowly by rhizomes, gradually forming small colonies in suitable habitats. Mature Size: Plants typically grow 10–45 cm (4–18 inches) tall. Cultivation: Desert gum suits native wildflower gardens and xeriscapes with sandy, well-drained soils. Once established, it requires little maintenance and tolerates prolonged drought. Identification: Desert gum is a bushy perennial that arises from a taproot and spreads by rhizomes. It contains abundant milky latex and bears narrow, linear leaves that become reduced to scales on the upper stems. The terminal flower heads consist entirely of pink or purple ray florets with no central disc flowers. The cylindrical involucres have 5–7 slender phyllaries lacking appendages, distinguishing the species from grand rushpink. The fruits are weakly ribbed, hairless cypselae topped with numerous fine, persistent bristles. Similar Species: Desert gum closely resembles grand rushpink (Lygodesmia grandiflora), but grand rushpink has larger flower heads, 5–12 ray florets, phyllaries bearing appendages, and edible leaves used as a potherb. Desert gum has smaller flower heads with 5–7 ray florets, phyllaries without appendages, and is primarily valued for its chewing gum rather than as a food plant.
References Carbon Farming Information and Carbon Sequestration Information
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Plant Propagation
Seed - sow spring in a cold frame and only just cover the seed. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division can be tried in the spring.
Other Names
If available other names are mentioned here
Skeleton Weed, Rush skeletonplant
Native Range
NORTHERN AMERICA: Canada (Saskatchewan, Alberta, Manitoba, British Columbia), United States (Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Oklahoma, Colorado, Idaho, Montana, Wyoming, Arkansas, New Mexico, Texas, Arizona, Nevada, Utah)
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not
in your area so it's worth checking.
Low. Desert gum is a native species and is not considered invasive.
Conservation Status
IUCN Red List of Threatened Plants Status : Not listed.
IUCN Red List
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
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Expert comment
Author
(Pursh) D. Don ex Hook.
Botanical References
43235
Links / References
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