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Daucus pusillus - Michx.

Common Name Western Carrot
Family Apiaceae or Umbelliferae
USDA hardiness 6-10
Known Hazards Skin contact with the sap is said to cause photo-sensitivity and/or dermatitis in some people[218].
Habitats Barrens, plains and dry hills[43]. Streambanks, roadsides and waste areas in Texas[274].
Range Western N. America.
Edibility Rating    (3 of 5)
Other Uses    (1 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Moist Soil Full sun
Daucus pusillus Western Carrot


Larry Allain @ USDA-NRCS PLANTS Database
Daucus pusillus Western Carrot

 

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Summary

Western carrot is the truly relevant southwestern Daucus species. Unlike wild carrot, which is mainly an eastern and mesic weed, Daucus pusillus is a small native annual that appears very early in the growing season in deserts, washes, mesas, and under shrub canopies. Its roots are tiny, often no more than a few millimeters thick, yet they are strongly carrot-like in aroma and flavor. That combination of tiny size and good taste defines the species: individually insignificant, collectively useful when abundant. It is a classic “small but efficient” desert food, especially because it often grows in colonies and because the roots require no peeling.


Physical Characteristics

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Daucus pusillus is a ANNUAL/BIENNIAL growing to 0.6 m (2ft) by 0.3 m (1ft in).
See above for USDA hardiness. It is hardy to UK zone 6 and is not frost tender. The seeds ripen from August to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Flies, beetles. The plant is self-fertile.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil. The plant can tolerate maritime exposure.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

 Meadow; Cultivated Beds;

Edible Uses

Edible Parts: Root
Edible Uses:

The primary edible part is the root. Leaves and fruits are edible, but only the root is clearly established as the main practical food. The leaves are not formally reported as edible, yet were found to be potentially usable in limited ways, while the mature, bristly fruits are cautioned against due to the choking hazard [2-3]. Edible Uses & Rating: Western carrot ranks as a surprisingly good small-root food in the Southwest US. It will never compete with a cultivated carrot in size, but it compensates through abundance and efficiency. If hundreds of plants grow together in the shade of shrubs or cacti, the roots can be gathered quickly enough to matter. This efficiency is exactly what raises its value above what one would assume from its tiny size. As a regional wild food, it deserves a good rating despite its small stature. Taste, Processing & Kitchen Notes: The roots are strongly aromatic and distinctly carrot-like despite their tiny size. We note that the flavor and aroma are similar to commercially grown carrots, which is important because many miniature wild roots are more interesting botanically than culinary. Peeling is pointless and unnecessary. The simplest and best use is to wash them thoroughly and toss them into soups or stews whole. Young leaves, though not formally documented as edible, are hairy, bitter, resinous, and aromatic; tender young leaves may be usable in salads in very small amounts, while older ones are more suitable as potherbs. The fruits, however, should not be used as seasoning once the barbs have hardened, as they become a serious choking hazard [2-3]. Seasonality (Phenology): Western carrot appears very early in the season across the southern United States, especially in late winter or early spring. Flowering in late winter or early spring, and seed production continues after that. That early-season timing is one of its great strengths because it provides edible roots when many other desert annuals are still just beginning. Calflora and Wildflower Center records likewise confirm it as a native annual of dry western habitats. Safety & Cautions (Food Use): The greatest caution is identification. Western carrot has several look-alikes in the same region, especially hedge parsley (Yabea microcarpa), field parsley (Torilis arvensis), desert sand-parsley (Ammoselinum giganteum), and bristly scaleseed (Spermolepis echinata). Of these, Yabea microcarpa is especially close, though confusing the two is of little consequence because both have edible roots. That is reassuring, but it should not lead to carelessness with other Apiaceae. A second caution is the mature fruit: the barbed schizocarps become physically dangerous to swallow once the barbs stiffen [2-3]. Harvest & Processing Workflow: The roots should be gathered while the plants are still young, before dry weather or fruiting makes them too coarse. Because they are tiny, efficient gathering is important: pull plants from moist or loosened soil in colonies, trim tops, wash thoroughly, and cook whole. There is no reason to peel them. If leaves are being used experimentally, younger leaves should be sampled first and older leaves reserved for potherbs. Mature fruits should be left alone. Cultivar/Selection Notes: There are no food cultivars of the western carrot. The practical “selection” is ecological rather than genetic: choose colonies in loose, workable soil where roots can be pulled quickly and where the soil is least gritty. In desert conditions, shade-grown plants under shrubs may also be more tender. Look-Alikes & Confusion Risks: Western carrot can be difficult because several annual desert Apiaceae share the same general, delicate, divided, white-umbel appearance. The common look-alikes all inhabit the same region, and none of the distinguishing features are absolutely reliable alone. The deeply divided bracts, barbed bristly fruits, and back-to-back flattened schizocarps are important, but mature fruit is often needed for certainty. Hedge parsley is especially similar but differs in fruit compression and hooked rather than barbed bristles. The safest approach is careful, repeated familiarity rather than single-trait identification [2-3]. Traditional/Indigenous Use Summary: We place the western carrot clearly within the southwestern US edible flora and link it closely with hedge parsley. Even if it never became a major staple, its abundance, early season, and good carrot-like flavor make it exactly the kind of small root that would have mattered in everyday traditional foraging. Root - raw or cooked[46, 61, 105, 161, 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.
Antipruritic  Blood purifier  Febrifuge  Poultice

The plant is antipruritic, blood purifier and febrifuge[257]. A decoction has been used to treat colds, itches, fevers and snakebites[257]. A poultice of the chewed plant has been applied to snakebites[257].

References   More on Medicinal Uses

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Other Uses

It provides nectar and pollen to small insects, contributes fine-textured cover beneath desert shrubs, and likely feeds small seed-eating animals once fruits mature. Its role as an early seasonal annual makes it especially relevant in desert food webs that depend on winter and spring moisture pulses.

Special Uses

Attracts Wildlife

References   More on Other Uses

Cultivation details

Western carrot, now best referred to as Daucus pusillus, belongs to the parsley family (Apiaceae) and the genus Daucus. Common names include American wild carrot, western carrot, southwestern carrot, and rattlesnake carrot. It is a native annual herb found across the southern half of the United States and especially relevant in southern California, Arizona, and adjacent dry regions. Calflora describes it as a native annual herb in California, while the Lady Bird Johnson Wildflower Center treats it as native across the southern half of the U.S. ? In practical terms it behaves like a cool-season to warm-season annual in roughly USDA Zones 7–10, sometimes beyond in mild climates. Plants usually grow about 10–60 cm tall and 10–35 cm across, though many are much smaller in truly dry habitats. Western carrot is one of those plants that teaches a central lesson of desert foraging: size alone does not determine usefulness. Its roots are tiny but flavorful, early, and easy to gather in numbers. That combination gives it a real place in the southwestern edible landscape, especially in comparison with the much less regionally relevant wild carrot. Growing Conditions: Western carrot grows best in deserts, washes, mesas, and open dry ground, especially where there is some seasonal moisture and partial shelter from shrubs or prickly pears. Calflora treats it as a native annual herb in California, and the Wildflower Center describes it as native across much of the southern U.S., reinforcing its adaptation to warm-season dryland habitats. Habitat & Range: It occurs primarily in southern Arizona and California, but broader records show it extending well beyond that across the southern half of the United States. It is especially associated with desert and dry open habitats. Size & Landscape Performance: As a landscape plant, western carrot is more of a delicate native annual filler than a formal ornamental. It can look airy and fine-textured beneath shrubs or in seasonal desert displays, but it is chiefly interesting ecologically and ethnobotanically rather than horticulturally. Cultivation (Horticulture): It could be cultivated by direct seeding in lean, well-drained soil with winter or early spring moisture. However, because the plant is annual and small, it is unlikely to be grown deliberately except in native plant collections or ecological gardens. Pests & Problems: The principal problem is not pest pressure but rather tiny root size and difficulty identifying roots. Drying winds and hard soils can also shorten the useful harvest window. Mature barbed fruits are another practical issue because they become troublesome to handle and dangerous to ingest. Identification & Habit: Western carrot is a native annual, hirsute plant with alternate, compound or deeply pinnately dissected leaves, open compound umbels, deeply divided bracts and bractlets, white flowers, and strongly flattened barbed fruits. Calflora and the Wildflower Center both recognize it as an annual native herb. Pollinators: Like wild carrot, western carrot likely attracts a wide guild of small umbel-visiting insects, including flies, tiny bees, beetles, and wasps. The open white umbels are classic generalist pollinator structures.

References   Carbon Farming Information and Carbon Sequestration Information

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Plant Propagation

Propagation is by seed. As a native annual, it depends on seasonal germination after adequate moisture and likely maintains a persistent seed bank in suitable soils. Seed - sow August/September or April in situ. The seed germinates better if it is cold stratified, the autumn sowing is liable to be more successful.

Other Names

If available other names are mentioned here

Rattlesnake Weed, American wild carrot

Native Range

NORTHERN AMERICA: Canada (British Columbia (south)), United States (Kansas, Missouri, Illinois, Oklahoma, Colorado, Idaho, Oregon, Washington, Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, New Mexico, Texas, Arizona, California), Mexico (Sonora) SOUTHERN AMERICA: Brazil (Paraná, Rio Grande do Sul, Santa Catarina), Argentina (Córdoba, Buenos Aires, Chubut, Corrientes, Entre Ríos, La Pampa, Neuquén, Río Negro, San Luis, Santiago del Estero), Chile (Biobío, Coquimbo, Maule, Libertador General Bernardo O Higgins, Región Metropolitana de Santiago, Aisén del General Carlos Ibañez del Campo, Los Lagos), Uruguay (Canelones, Artigas, Cerro Largo, Colonia, Florida, Lavalleja, Maldonado, Montevideo, Salto, San José, Soriano, Tacuarembó)

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.

Western carrot has low to moderate weed potential. It colonizes open seasonal ground readily but does not appear to behave as a major noxious weed. In native settings it is better regarded as a useful annual component of desert and dry scrub floras.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Daucus carotaWild Carrot, Queen anne's lace, Carrot, Wild Carrot, Queen Anne's LaceBiennial0.6 3-9 MLMHNM333
Daucus carota sativusCarrotBiennial1.2 4-10  LMHNM534

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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Michx.

Botanical References

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