The

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

genus ''Anemopsis'' has only one species, ''Anemopsis californica'', with the common names yerba mansa or lizard tail. It is a

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

herb Herbs are a widely distributed and widespread group of plants, excluding vegetables, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal purposes, or for fragrances. Culinary use typically distingu ...

in the lizard tail family ( Saururaceae) and prefers very wet soil or shallow water.Flowering Plants of the Santa Monica Mountains, Nancy Dale, 2nd Ed., 2000, p. 175

Range and habitat

It is native to southwestern

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

in northwest Mexico and the

Southwestern United States The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural list of regions of the United States, region of the United States that includes Arizona and New Mexico, along with adjacen ...

from

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

Oklahoma Oklahoma ( ; Choctaw language, Choctaw: , ) is a landlocked U.S. state, state in the South Central United States, South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northea ...

and

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

Kansas Kansas ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named a ...

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

. It grows in wet, alkaline marsh and creek edges.

Description

Leaves and stems

As it matures, the visible part of the plant develops red stains, eventually turning bright red in the fall.Medicinal Plants of the SW - ''Anemopsis californica''
, retrieved on July 17, 2007.

Inflorescence and fruit

Yerba mansa is showy in spring when in bloom. The iconic white "flowers" (actually reduced inflorescences, or pseudanthia) are borne in early spring, and are surrounded by 4–9 large white

bract In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...

s. Similar to the family

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

, what appears to be a single bloom is in reality a dense cluster of individually small flowers borne in an

inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a mai ...

. In this species the inflorescence is conical and has five to ten large white

bracts In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also loo ...

beneath it, so that along with the tiny white florets, the whole structure is quite striking when it blooms in spring. The conical structure develops into a single, tough fruit that can be carried downstream to spread the tiny, pepper-like

seeds In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be sown, which may include seed and husk or tuber. Seeds are the ...

Common name

In her book on

herbs Herbs are a widely distributed and widespread group of plants, excluding vegetables, with savory or aromatic properties that are used for flavoring and garnish (food), garnishing food, for medicinal purposes, or for fragrances. Culinary use typi ...

of the southwestern USA, Dr. Soule discusses the common name. "''Yerba mansa'' is one of those names which confounds linguists. ''Yerba'' is Spanish for herb, and thus one would think that ''mansa'' is also from Spanish as well, but all indications point to the fact that it is not. ''Mansa'' means tame, peaceful, calm in Spanish, and the plant has no sedative effect, nor did local people ever use it as a calming agent. Its primary use is as an

antimicrobial An antimicrobial is an agent that kills microorganisms (microbicide) or stops their growth (bacteriostatic agent). Antimicrobial medicines can be grouped according to the microorganisms they are used to treat. For example, antibiotics are used aga ...

antibacterial An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention ...

, and

antifungal An antifungal medication, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis (thrush), serious systemic infections such as ...

. The most likely explanation is that mansa is a Spanish alteration of the original native word for the plant, now lost in the depths of time." Hartweg, who collected it at

León, Guanajuato León (), officially León de Los Aldama, is the most populous city and municipal seat of the municipality of León in the Mexican state of Guanajuato. In the 2020 census, INEGI reported 1,579,803 people living in the city of León and 1,721,21 ...

in 1837, recorded the local name as '. It is also known as ''yerba del manso'' in northern Baja California. The word "manso" could be short for "remanso" (backwater) which would agree with the areas where the plant thrives.

Uses

Medicinal

Yerba mansa is used as an

, an

, and to treat vaginal candidiasis.''Anemopsis californica'' - Plants For A Future database report
retrieved on July 17, 2007 Yerba mansa is used to treat

inflammation Inflammation (from ) is part of the biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. The five cardinal signs are heat, pain, redness, swelling, and loss of function (Latin ''calor'', '' ...

of the

mucous membranes A mucous membrane or mucosa is a membrane that lines various cavities in the body of an organism and covers the surface of internal organs. It consists of one or more layers of epithelial cells overlying a layer of loose connective tissue. It is ...

, swollen gums and sore throat. An

infusion Infusion is the process of extracting chemical compounds or flavors from plant material in a solvent such as water, oil or alcohol, by allowing the material to remain suspended in the solvent over time (a process often called steeping). An inf ...

root In vascular plants, the roots are the plant organ, organs of a plant that are modified to provide anchorage for the plant and take in water and nutrients into the plant body, which allows plants to grow taller and faster. They are most often bel ...

s can be taken as a diuretic to treat

rheumatic Rheumatology () is a branch of medicine devoted to the diagnosis and management of disorders whose common feature is inflammation in the bones, muscles, joints, and internal organs. Rheumatology covers more than 100 different complex diseases, c ...

diseases like

gout Gout ( ) is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and Joint effusion, swollen joint, caused by the deposition of needle-like crystals of uric acid known as monosodium urate crysta ...

by ridding the body of excess

uric acid Uric acid is a heterocyclic compound of carbon, nitrogen, oxygen, and hydrogen with the Chemical formula, formula C5H4N4O3. It forms ions and salts known as urates and acid urates, such as ammonium acid urate. Uric acid is a product of the meta ...

, which causes painful inflammation of the joints. Yerba mansa prevents the buildup of

crystals in the

kidneys In humans, the kidneys are two reddish-brown bean-shaped blood-filtering organs that are a multilobar, multipapillary form of mammalian kidneys, usually without signs of external lobulation. They are located on the left and right in the retro ...

which could cause

kidney stones Kidney stone disease (known as nephrolithiasis, renal calculus disease, or urolithiasis) is a crystallopathy and occurs when there are too many minerals in the urine and not enough liquid or hydration. This imbalance causes tiny pieces of cr ...

if left untreated. A powder of dried root can be sprinkled on infected areas to alleviate

athlete's foot Athlete's foot, known medically as ''tinea pedis'', is a common skin infection of the feet caused by a fungus. Signs and symptoms often include itching, scaling, cracking and redness. In rare cases the skin may blister. Athlete's foot fungus ...

diaper rash Irritant diaper dermatitis (IDD, also called a diaper rash or nappy rash) is skin rash in the diaper (in British and Australian English "nappy") area, caused by various skin disorders and/or irritants. Generic irritant diaper dermatitis is charact ...

. Yerba mansa is versatile. It can be taken orally as a

tea Tea is an aromatic beverage prepared by pouring hot or boiling water over cured or fresh leaves of '' Camellia sinensis'', an evergreen shrub native to East Asia which probably originated in the borderlands of south-western China and nor ...

tincture A tincture is typically an extract of plant or animal material dissolved in ethanol (ethyl alcohol). Solvent concentrations of 25–60% are common, but may run as high as 90%.Groot Handboek Geneeskrachtige Planten by Geert Verhelst In chemistr ...

or dried in capsule form. It can be used externally for soaking inflamed or infected areas. It can be ground and used as a dusting powder. Some people in Las Cruces, New Mexico use the leaves to make a

poultice A poultice or cataplasm, also called a fomentation, is a soft moist mass, often heated and medicated, that is applied to the skin to reduce inflammation, soothe pain, promote healing, or otherwise treat wounds or ailments. Soft materials like cer ...

to relieve muscle swelling and inflammation. The leaves and roots have also been used to heal and disinfect wounds and sores. Yerba mansa is the midwife's panacea. The Good Book of Alice the Midwife enumerates the striking symmetry of benefits between this sub-tropic wetland plant in riparian ecology and microbiome diversity.

Crafts

* Dried floral structures are used in dried arrangements.Soule, J. A. 2011. Father Kino's Herbs: Growing and Using Them Today. Tierra del Sol Press, Tucson, AZ. * Dried plant parts (leaves, floral structure) emit a spicy fragrance and are used in

potpourri Potpourri ( ) is a mixture of dried, naturally fragrant plant materials used to provide a gentle natural scent, commonly in residential settings. It is often placed in a decorative bowl. Etymology The word "potpourri" comes into English from ...

Horticulture

* In the deserts of California, yerba mansa is being used as

turf Sod is the upper layer of turf that is harvested for transplanting. Turf consists of a variable thickness of a soil medium that supports a community of turfgrasses. In British and Australian English, sod is more commonly known as ''turf'', ...

in public parks and

ground cover Groundcover or ground cover is any plant that grows low over an area of ground, which protects the topsoil from erosion and drought. In a terrestrial ecosystem, the ground cover forms the layer of vegetation below the shrub layer known as the ...

in gardens.Bakker, Elna. "Yerba Mansa as Ground Cover." Pacific Horticulture 49 (4): 47-49. Pacific Horticultural Foundation, San Francisco, CA, 1988.

References

External links

* *
Plants For A Future databaseJepson Manual TreatmentUSDA Plants ProfileMedicinal Uses and Harvesting
{{Authority control Piperales genera Monotypic magnoliid genera Flora of California Flora of Oregon Flora of Arizona Flora of Texas Flora of Colorado Flora of Utah Flora of Kansas Flora of Oklahoma Flora of Baja California Flora of Sonora Flora of Chihuahua (state) Flora of the California desert regions Natural history of the Mojave Desert Natural history of the California Coast Ranges Natural history of the Central Valley (California) Garden plants of North America Drought-tolerant plants Saururaceae Flora without expected TNC conservation status Taxa named by George Arnott Walker Arnott Taxa named by William Jackson Hooker