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Ken-ichi Ueda, some rights reserved (CC BY). Creative Commons Attribution 4.0 |
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| Jim Morefield from Nevada, USA. Creative Commons Attribution-Share Alike 2.0 |
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Summary
White fivespots is a small desert annual native to some of the driest parts of western North America. It grows in open desert and dry shrubland from southeastern California eastward into Nevada, Arizona, and Utah and south into northwestern Mexico. Kew describes its primary biome as desert or dry shrubland. The plant appears during favorable rainfall years, particularly following winter rains. In dry years it may be scarce or absent from places where large populations appeared the previous spring. This irregular abundance is typical of desert annuals whose seeds remain dormant in the soil until suitable moisture conditions develop. The leaves and flowers have documented food use after preparation, although the plant has often been described as a famine or emergency food rather than a desirable vegetable. Your field observations suggest that this poor reputation is largely due to texture rather than flavor. Properly cooked leaves are mild and pleasant, while the cooking liquid develops a clean green flavor. The main problem is the dense covering of stellate hairs, which remain irritating even after boiling. Unlike many members of Malvaceae, white fivespots does not become strongly mucilaginous or slimy when cooked. The leaves and flowers soften into a mushy vegetable rather than producing the thickened texture associated with okra or some mallows. The plant therefore has genuine food value, but its practical usefulness is limited. The leaves are small, sandy, hairy and low in calories, while the stems remain tough. Where better wild greens are available, they are generally preferable. From an ecological perspective, white fivespots is a highly specialised desert annual that takes advantage of brief periods of moisture. Its flowers provide pollen and nectar during spring, and its compact growth enables it to complete an entire life cycle before extreme summer heat arrives.
Physical Characteristics

Eremalche exilis is a ANNUAL growing to 0.3 m (1ft) by 0.3 m (1ft in) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 8. The flowers are pollinated by Bees, 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 and can grow in very 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
Malvastrum exile A.Gray. Malveopsis exilis (A.Gray) Kuntze. Sphaeralcea exilis (A.Gray) Jeps.
Plant Habitats
Edible Uses
The leaves and flowers are edible after preparation [2-3]. The leaves should not normally be eaten raw. Their stellate hairs create a scratching sensation in the mouth and throat, and some individuals may experience greater irritation, including itching or burning. Boiling softens the leaf tissue and produces a mild cooked green, but it does not completely remove the hairs. Even after thorough cooking, some irritation may remain. The flowers are softer and generally more pleasant than the foliage. They can be cooked with the leaves, although the small size of the flowers means they contribute little bulk food. The stems should be removed before cooking because they remain fibrous and tough. Roots and mature fruits have no established food value and should not be regarded as edible parts [2-3]. Edibility Rating: 2/5: White fivespots receives an overall edibility rating of 2 out of 5. Its flavor is better than the low rating might suggest. Cooked leaves are mild, and the broth is pleasant, but the persistent irritating hairs greatly reduce the value of the plant as food. The species is also very small. Even a dense colony requires considerable harvesting to produce a meaningful serving, and much of the collected material consists of stems and hairy leaf surfaces rather than substantial edible tissue. The plant is therefore best viewed as an occasional cooked green or emergency vegetable rather than a valuable staple. Taste, Processing & Culinary Use: Fresh leaves have a green, grassy aroma and a reasonably mild flavor. Nothing about their taste suggests serious chemical toxicity, but the hairs make raw consumption uncomfortable. The surface hairs are stellate, meaning each hair branches into several rays from a central point. These hairs trap sand, dust and grit exceptionally well, particularly in the windy desert habitats where the plant grows. Thorough washing is therefore essential. Several changes of water may be necessary before the leaves are clean enough to cook. Boiling produces the best results. The leaves soften quickly and develop a mild green flavor without strong bitterness, resin or astringency. The resulting broth is bright green and pleasantly flavored but very thin. Unlike many mallows, white fivespots does not release enough mucilage to noticeably thicken soups or stews. The cooked foliage becomes soft and mushy rather than slippery. This can be advantageous for people who dislike the mucilaginous texture of other edible mallows. Persistent hairs remain the main problem. Even after extended boiling, many hairs stay attached and can produce a short-lived scratching sensation in the throat. Chopping the leaves finely after cooking may reduce the sensation somewhat, but does not eliminate it. The flowers can be cooked along with the leaves and have a softer texture. They contribute little volume but provide an attractive addition to a mixed wild-green dish. Removing all stems before cooking is worthwhile because they remain significantly tougher than the leaves [2-3]. Seasonality (Phenology): White fivespots is primarily a winter- and spring-growing desert annual. Seeds germinate after sufficient rainfall, often during winter or early spring in the Mojave and Sonoran desert regions. Vegetative growth can be rapid when moisture and temperatures are favorable. Flowering typically occurs from February through May. Jepson and Calflora record its status as a spring-flowering desert annual. Leaves are at their best before and during early flowering, when they remain tender and relatively moist. As temperatures rise and soils dry, plants rapidly mature, produce seed and die. The seeds can remain dormant in desert soil through prolonged drought before germinating during a later favorable season. Safety & Cautions: The main known problem with white fivespots is mechanical irritation from the stellate hairs. These hairs may scratch the mouth and throat and can cause itching or burning in sensitive individuals. Swelling is less commonly reported but is possible. Raw leaves should therefore be avoided. Cooking softens the leaves but does not reliably remove the hairs, so small initial servings are advisable. Anyone experiencing persistent burning, swelling or breathing difficulty should discontinue use immediately. Plants growing beside roads, mines, contaminated washes or agricultural land should not be collected because desert dust may contain pollutants, herbicide residues or heavy metals. The hairy surfaces trap contaminants particularly efficiently. Only gather plants that have been positively identified. Other desert mallows may have different food histories, and the fact that one species is edible does not establish that every superficially similar mallow is safe. Harvest & Processing: Harvest young, healthy leaves before they become dry or heavily weathered. Choose plants growing on clean ground well away from roads and contaminated drainage. Pinch or cut the leaves individually rather than gathering entire plants where possible. This allows the annual to continue flowering and producing seed. Because the foliage traps sand, wash it repeatedly in a large volume of clean water. Remove all tough stems and petioles that resist bending. Cook the leaves in boiling water until thoroughly soft. If irritation remains after the first boiling, a second change of water may reduce loose debris but will not necessarily remove attached hairs. Flowers may be added during the final stages of cooking. Small initial servings are advisable to determine individual tolerance [2-3]. Traditional Indigenous Uses: White fivespots has been described in ethnobotanical literature as an emergency or famine food of the southwestern deserts. The leaves and flowers were reportedly cooked before being eaten, rather than used raw. This distinction is important because the primary limitation is physical irritation from the plant hairs rather than an inherently offensive flavor. Its low stature and irregular appearance following rainfall probably restricted its importance as a dependable food. Desert peoples generally had access to more productive seed plants, cacti, mesquite, agaves and other resources where conditions permitted. Nevertheless, in particularly difficult seasons, a widespread flush of white fivespots could provide a useful temporary green vegetable [2-3].
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.
No recorded specific medical or pharmaceutical uses.
References More on Medicinal Uses
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Other Uses
Rarely cultivated intentionally, but can be grown as a desert wildflower annual. Wildlife & Ecology: White fivespots contribute to the brief but highly productive spring flowering season of western deserts. Its flowers are likely visited by native bees, small flies, and other insects seeking pollen and nectar. Because the flowers occur close to the ground, they are particularly accessible to small solitary bees and low-flying insects. The leaves and seeds may also support small herbivorous insects and seed-eating animals. Like many desert annuals, the plant helps temporarily stabilize bare soil following rainfall. After death, the dried vegetation returns nutrients to the soil and contributes organic matter to otherwise nutrient-poor desert surfaces.
Special Uses
References More on Other Uses
Cultivation details
Growing Conditions: White fivespots thrives in full sun and exceptionally well-drained desert soils. It grows primarily in sandy, gravelly, and rocky substrates associated with desert and dry shrubland. Kew specifically records the species as an annual of desert or dry shrubland habitats. The plant tolerates poor fertility and alkaline soils. Its growth is controlled much more by rainfall than by soil fertility. Seeds normally remain dormant until sufficient moisture is available. In cultivation, overwatering is more likely to cause problems than underfeeding. The soil should drain rapidly between irrigation events. Cool to mild temperatures during establishment encourage the strongest plants. Once hot dry weather arrives, flowering and seed production accelerate, and the annual soon completes its life cycle. Habitat & Distribution: White fivespots is native to the deserts of western North America. Plants of the World Online records its native range from southeastern California to Utah and northwestern Mexico, extending south to Chihuahua. The genus Eremalche as a whole is native to Arizona, California, Nevada, Utah and adjoining parts of Mexico. In the United States, the species occurs particularly in California, Nevada, Arizona and Utah. Typical habitats include desert flats, washes, sandy slopes, open scrub, rocky ground and disturbed desert soils. California records confirm its status as a native annual herb. Populations can vary enormously between years. A site containing hundreds of plants following a wet winter may support almost none during drought. Cultivation: White fivespots is rarely cultivated intentionally but can be grown as a desert wildflower annual. Sow seed during autumn or winter in regions with mild winters, allowing natural cool-season rainfall to stimulate germination. In colder climates, seed can be started in early spring. Use a sandy or gravelly growing medium with excellent drainage. Seed should be covered only lightly. Avoid rich compost and heavy fertilization. Excess nutrients may encourage soft growth poorly adapted to desert conditions. Water sparingly but consistently during establishment. Once flowering begins, gradually reduce irrigation to mimic the natural drying cycle. Because the plant is an annual, successful seed production is essential if a self-sustaining population is desired. Identification: White fivespots is a low-growing annual with stems approximately 5–35 centimeters long. Plants may be prostrate, ascending or occasionally more upright. Jepson describes the genus as annual and the stems as ranging from prostrate to erect. The leaves are simple, alternate and stalked. Blades are rounded in outline and palmately lobed, usually around 9–25 millimeters across. Their margins are crenate or bluntly toothed. Both stems and leaves may carry sparse to moderate stellate hairs. Flowers arise individually from the leaf axils or occasionally in small clusters. Each flower has a five-lobed calyx subtended by three narrow bractlets, a characteristic feature of many mallows. The five petals are free and white, distinguishing the species from the much more conspicuous purple-pink desert fivespots, Eremalche rotundifolia. Numerous stamens are united by their filaments into the characteristic central staminal column of the mallow family. The ovary develops into a flattened ring or doughnut-shaped schizocarp composed of approximately 9–13 similar segments. Each segment contains one seed. The fruit surfaces are wrinkled rather than deeply pitted. The combination of small white flowers, low-growing habit, stellate-haired lobed leaves and desert habitat helps distinguish white fivespots from other southwestern mallows. White fivespots, Eremalche exilis (A. Gray) Greene, belongs to the mallow family (Malvaceae) and the genus Eremalche. Common names include white fivespots, white mallow and, less consistently, desert mallow. The synonym Malvastrum exile A. Gray appears in older botanical literature. Current botanical authorities accept Eremalche exilis as a distinct species. Because white fivespots is an annual, USDA Hardiness Zones are less useful than they are for perennial plants. It can be grown approximately through USDA Zones 7–10, provided winter or early spring rainfall is sufficient and the growing season is not interrupted by severe prolonged frost. Plants are usually low and spreading, with stems approximately 5–35 cm long and a typical spread of around 10–35 cm. Jepson describes the species as an annual that may be prostrate to erect, while Calflora likewise treats it as a native annual herb. White fivespots is a genuine but low-quality edible desert annual. Its reputation as a famine food probably reflects its physical drawbacks rather than its flavor. Properly cooked leaves are mild, the green broth is pleasant, and the flowers are usable, but the irritating stellate hairs remain a persistent problem. An edibility rating of 2/5 captures this balance. The plant is neither poisonous nor inherently unpleasant, but the amount of work involved in washing, removing stems and coping with the hairs greatly reduces its practical value. Its greatest significance lies in demonstrating how desert peoples could draw food from even small and apparently unpromising annual plants during favorable seasons. For modern foragers, it is worth knowing but rarely worth seeking out deliberately. For native-plant gardeners and ecologists, its value lies more in its adaptation to desert rainfall cycles, spring flowers, and contribution to the ephemeral annual flora of the American Southwest.
References Carbon Farming Information and Carbon Sequestration Information
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Plant Propagation
Propagation is entirely by seed. Allow fruiting structures to dry naturally on the plant. The mature schizocarp separates into individual segments, each containing one seed. Collect seed before all segments have dispersed. Store seed dry until sowing. Autumn sowing in desert climates usually provides the most natural conditions. Some seed may remain dormant for extended periods, reflecting adaptation to unpredictable rainfall. Direct sowing is preferable to transplanting because young annual desert plants often resent root disturbance.
Other Names
If available other names are mentioned here
White five spots, white mallow and, less consistently, desert mallow.
Native Range
US. USA. Arizona, California, Mexico Northeast, Mexico Northwest, Nevada, Utah [2-5].
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.
White fivespots has very low weed potential. It is an annual dependent on specific rainfall conditions and does not spread vegetatively. Although large populations may appear in favorable years, they naturally disappear as the soil dries. The species is not regarded as invasive and is unlikely to become troublesome in cultivation outside habitats closely resembling its native desert environment.
Conservation Status
IUCN Red List of Threatened Plants Status : Not listed.
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
(A.Gray) Greene
Botanical References
Links / References
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Subject : Eremalche exilis
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