Encelia farinosa
Encelia farinosa | |
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near Palm Springs, California | |
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Species: | E. farinosa
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Binomial name | |
Encelia farinosa |
Encelia farinosa (commonly known as brittlebush, brittlebrush, or incienso), is a common desert shrub of northern Mexico (Baja California, Baja California Sur, Sonora, Sinaloa, and Hidalgo) and the southwestern United States (California, Arizona, Utah, and Nevada).[1][2][3]
The common name "brittlebush" comes from the brittleness of its stems. Other names include hierba del vaso (Spanish) and cotx (Seri).[4] Another Spanish name for it is incienso because the dried sap was burned by early Spanish missions in the New World as incense.
Habitat[]
E. farinosa can be found in a variety of habitats from dry, gravelly slopes to open, sandy washes up to 1,000 m (3,300 ft). It requires a very sunny position in a deep very well-drained soil, and minimal winter frost.[5]
It does well in cultivation often being used for border, erosion control, ground cover and massing.[6] Recently the plant has spread dramatically in areas not natural to its distribution in large part because Caltrans has begun to use it in hydroseeding.[citation needed]
Description[]
Brittlebush grows up to 30 to 150 cm (12 to 59 in) tall,[7] with fragrant leaves 3–8 centimetres (1.2–3.1 in) long, ovate to deltoid, and silvery tomentose. The capitula are 3.0–3.5 cm in diameter, with orange-yellow ray florets and yellow or purple-brown disc florets. They are arranged in loose panicles above the leafy stems fruit 3–6 mm and no pappus is visible.[1] During dry seasons the plant goes drought deciduous, shedding all of its foliage, relying on the water stored in its thick stems.[5]
3-Acetyl-6-methoxybenzaldehyde is found in the leaves of E. farinosa.[8]
Varieties[]
Two varieties of E. farinosa are recognized by Flora of North America.[1]
- E. f. var. farinosa – yellow disc florets
- E. f. var. phenicodonta (Blake) I.M.Johnston – purple-brown disc florets
Varieties formerly included E. f. var. radians, now regarded as a separate species E. radians Brandegee.[9]
Uses[]
Brittlebush has a long history of uses by indigenous and pioneer peoples.
- Glue: The resin collected from the base of the plant, yellowish to brown, can be heated and used as a glue. The O'odham and Seri use it for hafting, to hold points on arrows and harpoons.[4]
- Sealer: A different sort of resin collected from the upper stems is more gummy and generally a clear yellow. The Seri use this to seal pottery vessels.[4]
- Incense: Early Spanish friars learned that the resin made a highly fragrant incense, akin to frankincense in odor.[10]
- Gum: The Sells area Tohono O'odham children use upper stem resin as a passable chewing gum.[11]
- Toothbrush: Oldtime cowboys used brittlebush stem as a fine toothbrush. [11]
- Medicinal: Seri use brittlebush to treat toothache; the bark is removed, the branch heated in ashes, and then placed in the mouth to "harden" a loose tooth.[4] The Cahuilla used brittlebush to treat toothaches as well,[12] and used it as a chest pain reliever by heating the gum and applying it to the chest.[12][13]
- Waterproofing: It has been used to waterproof containers.[6]
- Varnish: It has been melted then used as a varnish.[6]
References[]
- ^ Jump up to: a b c Brittlebush, incienso, Encelia farinosa A.Gray ex Torrey
- ^ http://bonap.net/MapGallery/County/Encelia%20farinosa.png
- ^ Biota of North America Program 2014 county distribution map
- ^ Jump up to: a b c d Felger, Richard Stephen; Moser, Mary Beck (1985). People of the Desert and Sea: Ethnobotany of the Seri Indians (2. print. ed.). Tucson, Ariz.: University of Arizona Press. ISBN 0816508186.
- ^ Jump up to: a b Gacsi/Morgan, April/Steve (January 1992). Deserts of the Southwest Self Guided Tour. Riverside, California: University of California, Riverside Botanic Gardens. p. 10.
- ^ Jump up to: a b c "Encelia farinosa Brittle Bush, Brittlebush, Incienso PFAF Plant Database". www.pfaf.org. Retrieved 26 January 2019.
- ^ Hogan, C. Michael (ed.) "Brittlebush – Encelia farinosa" at the Encyclopedia of Life. Retrieved 1 April 2013.
- ^ Gray, Reed; Bonner, James (19 March 1948). "Structure Determination and Synthesis of a Plant Growth Inhibitor, 3-Acetyl-6-methoxybenzaldehyde, Found in the Leaves of Encelia Farinosa". Journal of the American Chemical Society. 70 (3): 1249–1253. doi:10.1021/ja01183a114. PMID 18909201.
- ^ Bohm, Bruce A. (2009). The Geography of Phytochemical Races. Dordrecht: Springer. p. 112. ISBN 9781402090523.
- ^ Dunmire, William W. (2004). Gardens of New Spain: How Mediterranean Plants and Foods Changed America. Austin: University of Texas Press. ISBN 978-0-292-70564-7.
- ^ Jump up to: a b Soule, Jacqueline A. (2012). Father Kinos's Herbs: Growing & Using Them Today. Tucson: Tierra del Sol Institute Press. ISBN 978-0-9758554-2-3.
- ^ Jump up to: a b "Plants of the Cahuilla Indians of the Colorado Desert and Surrounding Mountains". Enduring Knowledge Publications. Retrieved 26 January 2019.
- ^ James, Harry. Temalpakh: Cahuilla Indian Knowledge and Usage of Plants. Malki Museum Press. ISBN 978-0-9390-4606-5.
External links[]
Wikimedia Commons has media related to Encelia farinosa. |
- Encelia
- Flora of the Southwestern United States
- Flora of Northwestern Mexico
- Flora of the California desert regions
- Flora of the Sonoran Deserts
- Flora of the Coachella Valley
- Natural history of the California chaparral and woodlands
- Natural history of the Colorado Desert
- Natural history of the Mojave Desert
- Natural history of the Peninsular Ranges
- Natural history of the Santa Monica Mountains
- Plants used in traditional Native American medicine
- Drought-tolerant plants
- Garden plants of North America
- Plants described in 1848
- Taxa named by Asa Gray
- Taxa named by John Torrey