''Fremontodendron mexicanum'' is a rare species of shrub in the mallow family known by the common names Mexican flannelbush, Mexican fremontia, and Southern flannelbush, that is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

to the central Peninsular Ranges in

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

and the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

Distribution

The species is known from about ten occurrences in northern

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

state and adjacent southern

San Diego County San Diego County (), officially the County of San Diego, is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the f ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

. However, it has most recently been confirmed to exist in only two of those locales currently.California Native Plant Society Rare Plant Profile
/ref>Center for Plant Conservation
/ref> In 1993, fewer than 100 individuals were thought to exist. In the United States it is a federally listed endangered species.

Ecology

The shrub grows generally on alluvial plains, in

California montane chaparral and woodlands The California montane chaparral and woodlands is an ecoregion defined by the World Wildlife Fund, spanning of mountains in the Transverse Ranges, Peninsular Ranges, and Coast Ranges of southern and central California. The ecoregion is part of ...

and

temperate coniferous forest Temperate coniferous forest is a terrestrial biome defined by the World Wide Fund for Nature. Temperate coniferous forests are found predominantly in areas with warm summers and cool winters, and vary in their kinds of plant life. In some, needle ...

habitats, among Tecate cypress (''Cupressus forbesii'') trees.

Description

''Fremontodendron mexicanum'' is an erect, flowering shrub or multi-trunked small tree reaching high, with branches spreading to wide. The leathery and furry olive green leaves are up to 5 centimeters long and divided into several wide lobes. The solitary flowers, each about 6 centimeters wide, appear spread along the branches. The showy flowers are made up of five bright orange

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coine ...

s and have no true petals. Fremontodendron Ken Taylor

Cultivation

''Fremontodendron mexicanum'' is cultivated as an

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that ...

by specialty

plant nurseries A nursery is a place where plants are propagated and grown to a desired size. Mostly the plants concerned are for gardening, forestry or conservation biology, rather than agriculture. They include retail nurseries, which sell to the general p ...

, for planting in

native plant In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention") during history. The term is equ ...

drought tolerant Drought tolerance is the ability to which a plant maintains its biomass production during arid or drought conditions. Some plants are naturally adapted to dry conditions'','' surviving with protection mechanisms such as desiccation tolerance, deto ...

, and

wildlife garden A wildlife garden (or wild garden) is an environment created by a gardener that serves as a sustainable haven for surrounding wildlife. Wildlife gardens contain a variety of habitats that cater to native and local plants, birds, amphibian ...

s, and in

natural landscaping Natural landscaping, also called native gardening, is the use of native plants and adapted species, including trees, shrubs, groundcover, and grasses which are local to the geographic area of the garden. Benefits Maintenance Natural land ...

and

habitat restoration Restoration ecology is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human interrupt ...

projects. Cultivated plants need good drainage, and no supplemental summer water when established.

Hybrids

There are several named hybrids of ''Fremontodendron mexicanum'' and ''

Fremontodendron californicum ''Fremontodendron californicum'', with the common names California flannelbush, California fremontia, and flannel bush, is a flowering shrub native to diverse habitats in southwestern North America. Distribution ''Fremontodendron californicum'' ...

'' in the horticultural trade, they include: *''Fremontodendron'' 'California Glory' — lemon-yellow flowers with a reddish tinge, grows in height by in width. It is the winner of the Award of Garden Merit from the California Horticultural Society in 1965, and received a First Class Certificate from the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nor ...

in 1967. *''Fremontodendron'' 'Ken Taylor' — golden flowers with a darker orange outside petals in the spring and summer, and grows to only in height by in width. * ''Fremontodendron'' 'Dara's Gold' — golden flowers over a long period from late winter through early summer, grows in height by in width. A hybrid between ''Fremontodendron decumbens'' and ''Fremontodendron mexicanum''.San Marcos Growers: Fremontodendron 'Dara's Gold'
/ref>

References

External links

CalFlora Database: ''Fremontodendron mexicanum'' (Mexican flannelbush, Southern flannelbush, Mexican fremontia)Jepson Manual Treatment of ''Fremontodendron mexicanum''USDA Plants Profile for ''Fremontodendron mexicanum'' (Mexican flannelbush)The Nature Conservancy''Fremontodendron mexicanum'' — UC Photos gallery
* {{Taxonbar, from=Q5501643 Bombacoideae Flora of Baja California Flora of California Natural history of the California chaparral and woodlands Natural history of the Peninsular Ranges Natural history of San Diego County, California Garden plants of North America Drought-tolerant plants Shrubs