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Topic: Yucca brevifolia

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	Yucca: Encyclopedia of Alternative Medicine
		Yucca plants are tree-like succulents of the lily family (Liliaceae) with stemless stiff, pointed leaves that end in a sharp needle.
		Yucca extract is used to treat a variety of other conditions, including migraine headaches, colitis, ulcers, wounds, gout, bursitis, hypertension (high blood pressure), and high LDL cholesterol (also called bad cholesterol).
		Since yucca has rarely been studied in a scientific setting, it is not known whether it is safe in children, pregnant or lactating women, or people with a history of severe kidney or liver diseases, heart disease, or cancer.
	health.enotes.com /alternative-medicine-encyclopedia/yucca (1114 words)

	Yucca - Wikipedia, the free encyclopedia
		The yuccas comprise the genus Yucca of 40-50 species of perennials, shrubs, and trees in the agave family Agavaceae, notable for their rosettes of evergreen, tough, sword-shaped leaves and large terminal clusters of white or whitish flowers.
		Yuccas have a very specialized pollination system, being pollinated by the yucca moth; the insect purposefully transfers the pollen from the stamens of one plant to the stigma of another, and at the same time lays an egg in the flower; the moth larva then eats some of the developing seeds, but far from all.
		Many yuccas also bear edible parts, including fruits, seeds, flowers, flowering stems, and more rarely roots, but use of these is sufficiently limited that references to yucca as food more often than not stem from confusion with the similarly spelled but botanically unrelated yuca.
	en.wikipedia.org /wiki/Yucca (289 words)

	Yucca & Yucca Moth
		Yuccas are trunkless shrubs with rosettes of stiff, sword-shaped leaves arising at ground level, or tree-like with distinct trunks and limbs.
		The sand-covered, silken cocoon of the chaparral yucca moth (Tegeticula maculata).
		Armstrong, W.P. "The Yucca and Its Moth." Zoonooz 72 (4): 28-31.
	waynesword.palomar.edu /ww0902a.htm (2245 words)

	YUCCA (Site not responding. Last check: 2007-10-24)
		The largest yucca is the Joshua tree (Yucca brevifolia), which has much-branched stems and can grow to a height of 10 to 15 metres.
		After mating, the female moth gathers pollen from the yucca flowers then flies to a different yucca plant and lays her eggs in the ovary of the flower.
		Yuccas leaves are a major source of fibres for basket-making and other types of weaving by native American people.
	helios.bto.ed.ac.uk /bto/desbiome/yuccas.htm (668 words)

	Benny's Yucca Page
		Many of the Yucca species are hardy in Denmark, but some are only suitable for cultivation in large pots, that can be stored either inside an unheated greenhouse, or frost free during the winter period.
		Some species specially in the colder and northern parts of their range, Yucca species tend to be small and trunk less, but in the warmer and tropical areas, some species may become large branched trees up to 10 meter tall (Yucca brevifolia).
		The scientist used to think that there only were 3 different Yucca moths; Tegeticula maculata which is specialized to pollinates Yucca whipplei, Tegeticula paradoxa which is specialized to pollinates Yucca brevifolia, and finally Tegeticula yuccasella which could pollinate all the other species of Yucca.
	www.bennyskaktus.dk /Yucca_UK.htm (690 words)

	YUCCA (Site not responding. Last check: 2007-10-24)
		Yucca species, in the lily family (Liliaceae), are relatively large succulent plants, typically 2-4 metres tall.
		Yuccas grown in regions where the yucca moth is absent will never produce seeds unless the plants are hand-pollinated.
		One of the largest yuccas is the Joshua tree (Yucca brevifolia), which has much-branched stems and can grow to a height of 10 to 15 metres.
	helios.bto.ed.ac.uk /bto/desertecology/yuccas.htm (654 words)

	Joshua Tree (Site not responding. Last check: 2007-10-24)
		Yucca brevifolia is endemic to the Mojave Desert.
		The species Yucca brevifolia jaegeriana according to Gossard (1992) differs with its smaller overall growth, numerous shorter branches and is located primarily in the drier eastern portion of the Mojave.
		The leaves of Y brevifolia are shorter than those of most all other yuccas (hence the name brevifolia) and range from five to twelve inches long when fully grown.
	bss.sfsu.edu /geog/bholzman/courses/Fall99Projects/yucca.htm (4040 words)

	What makes Yucca brevifolia so special? Maggie Ryan PLB 306
		Yucca glauca is also a C3 plant, but it has a much wider range of distribution than that of Y.
		brevifolia also consists of a bundle of sclerenchyma fibers (sc), which are thought to protect the plant from predators.
		Similar to the glauca, brevifolia has a bundle cap (bc) and phloem fibers (pf) on adaxial and abaxial sides of the leaf respectively.
	lifesciences.asu.edu /plb306/Yucca_Maggie.html (749 words)

	Backyard Gardener - Yuccas, March 22, 2000
		Yuccas have been (and occasionally, still are) harvested for food (flowers and fruits) fiber (leaves) and soap (roots).
		Yuccas produce showy, creamy white flower spikes between March and May. All southwestern yucca species are pollinated by various species of small moths of the genus Tegeticula.
		Yuccas have sharp spines at the ends of the leaves that can easily pierce the skin and cause painful wounds.
	ag.arizona.edu /yavapai/anr/hort/byg/archive/yuccas.html (656 words)

	Chaparral yucca
		Chaparral yucca is a small acaulescent shrub with a dense basal rosette of dark-green bayonet-like leaf spears from 1' to 3' long that project outwards in all directions with needle-like tips.
		Chaparral yucca, or as it is also known, Our Lord's Candle, is common on dry coastal sage scrub and chaparral slopes from 1000' to 4000', blooming from April to June.
		brevifolia), the banana yucca or Spanish bayonet of the eastern desert mountains (Y.
	www.calflora.net /bloomingplants/chaparralyucca.html (308 words)

	Botanical and ecological characteristics
		Pollination: One of the most interesting and well-studied aspects of yucca ecology centers around the symbiotic relationship between yuccas and their yucca moth pollinators.
		Seed production is totally dependent on the availability of this pollinator, which in the larval stage, feeds on a small percentage of seeds (generally around 7%) [18].
		Germination: Most yucca seeds germinate well when temperature and moisture conditions are favorable [19].
	www.fs.fed.us /database/feis/plants/tree/yucbre/botanical_and_ecological_characteristics.html (1179 words)

	fUSION Anomaly. Yucca
		Any of various evergreen plants of the genus Yucca, native to the warmer regions of North America, having often tall stout stems and a terminal cluster of white flowers.
		The Spanish bayonet (Yucca aloifolia), native to the West Indies, Mexico, and the southeastern United States, bears white flowers and grows to a height of 8 m (25 ft).
		The Spanish dagger (Yucca gloriosa) is native to the Atlantic Coast from North Carolina to Florida; it bears white, reddish-tinged flowers and reaches a height of 2.4 m (8 ft).
	fusionanomaly.net /yucca.html (437 words)

	Joshua Trees (Site not responding. Last check: 2007-10-24)
		There are two recognized sub species of Joshua trees, or Yucca brevifolia as they are known in the scientific community.
		Yucca brevifolia jaegeriana is found in the eastern Mojave Desert.
		Like other yucca, Joshua trees are only pollinated by a specific species of yucca moth, so each are dependent on the other for survival.
	www.nps.gov /moja/mojaanjt.htm (426 words)

	California Gardens - Yucca brevifolia - Joshua Tree
		Yucca brevifolia is native to the high desert areas that only get a little snow or deep cold.
		Yucca brevifolia is notable for the incredible silhouettes.
		High resolution images of Yucca brevifolia are available.
	www.californiagardens.com /Plant_Pages/yucca-brevifolia.htm (114 words)

	Soaptree Yucca, Yucca elata
		The female Yucca Moth has evolved special organs which collect and distribute the pollen onto the surface of the flower.
		An old Soaptree Yucca can sprout new plants from its roots, however only the seeds produced by pollinated flowers can scatter far enough away from the old plant to establish a new stand of plants.
		Yucca elata was in the Aguave or Agave Family but now is in the Lilly Family.
	www.delange.org /YuccaSoaptree/YuccaSoaptree.htm (387 words)

	The Living Desert - Joshua Tree
		The Joshua tree is the largest of all U.S. yuccas, commonly reaching 30 feet, with larger plants reaching to 50 feet.
		The yucca moth visits the flowers during the night.
		Some plants have been living in the garden since the late 1970s, and new trees are added yearly when plants are available.
	www.livingdesert.org /plants/joshua_tree.asp (425 words)

	Grow Unusual and Exotic Yucca Plants from Seeds
		Yucca whipplei is commonly known as Our Lord's Candle and named for its tall flower stalks that are creamy colored.
		A massive growing, trunking yucca that can reach up to 20' in height, generally with a single trunk and un-branched.
		A remarkably beautiful Yucca that forms a large, spherical crown of blue-grayish green, narrow leaves, supported by a moderately tall, solitary trunk, clothed at least in its upper part in a dense skirt of dead leaves.
	www.datasync.com /sbe/yucca.htm (918 words)

	Mohave Yucca (DesertUSA)
		Mojave Yucca can be seen in bloom along the coast as late as August and September.
		Flowers of the Yucca genus -- which includes the Joshua Tree (Yucca brevifolia) -- depend on the small, white Pronuba Moth for pollination.
		This moth, in addition to gathering pollen, actually deposits her eggs in the ovary of the yucca flowers.
	www.desertusa.com /oct96/du_myucca.html (214 words)

	Digital Flora of Texas Vascular Plant Image Library query results: Yucca (Site not responding. Last check: 2007-10-24)
		Agavaceae: Yucca elephantipes [jpeg] - Cultivated, from Maui, Hawaii.
		Agavaceae: Yucca louisianensis - Native, from Navasota, TX.
		Agavaceae: Yucca torreyi - Native, from Winston Ranch, Uvalde Co., Texas.
	www.csdl.tamu.edu /FLORA/cgi/gallery_query?q=Yucca (634 words)

	Yucca brevifolia (Site not responding. Last check: 2007-10-24)
		Lonely-seeming sentry of the desert, Yucca brevifolia is a statuesque figure of determination to survive.
		In the Cactus and Succulent Society Yearbook, No.7, 2000, there is a wonderful research article on Yuccas and their struggle to survive.
		According to the article, it is suspected seedlings are often eaten by animals or otherwise destroyed before reaching a very early age.
	www.laeom.com /yucca.htm (240 words)

	The Joshua Tree DesertUSA
		Originally thought to be members of the Agave (Century Plant) Family, the Joshua Tree and other yuccas have been reclassified as members of the Lily (Liliaceae) Family.
		In fact, the female Yucca Moth has evolved special organs to collect and distribute the pollen onto the surface of the flower.
		She then lays her eggs in the flowers' ovaries, and when the larvae hatch, they feed on the yucca seeds.
	www.desertusa.com /jtree/josh_month.html (328 words)

	soap tree yucca
		in desert areas is Mohave yucca, a shrub or tree-like yucca reaching 1 to 5 m in...
		The largest yucca is the Joshua tree (Yucca brevifolia), which has much-branched stems...
		Soaptree Yucca is a tree yucca with a single or multiple stems that reportedly can live for 250 to 300 years.
	www.wendywooding.com /evergreen-shrubs/soap-tree-yucca.php (635 words)

	Christmas trees, cacti, and yucca native to Nevada
		As of the date above, the native cacti, yucca, and evergreen trees listed below are protected and regulated by Nevada Revised Statutes (N.R.S.) 527.060-.120 and Nevada Administrative Code chapter 527 when proposed for removal or possession at "commercial" rates or quantities (see below).
		Christmas trees, cacti or yucca which are removed or possessed for commercial purposes in Nevada and which are to be transported.
		All Christmas trees, cacti or yucca removed or possessed for commercial purposes must have attached thereto a tag issued by the state forester firewarden, by the Bureau of Land Management or by the United States Forest Service (NRS 527.091).
	heritage.nv.gov /cactyuc.htm (278 words)

	Yucca Nursery at Ty Ty GA: Yucca (Site not responding. Last check: 2007-10-24)
		Our Yucca are spectacular in landscapes of all kinds, and we can ship to you immediately during the season.
		Many homeowners use these plants to burglar proof their property because the treacherous points at the tips of their leaves can cause horrible wounds and piercings.
		Not all yuccas are armed with dangerous needles and some contain soft leaves and make great landscape plants or potted specimens.
	tytyga.com /perennials/yucca/index.htm (433 words)

	NDRC: Publications: Huxman et al. 1998
		Whereas effects of chronic high temperature (30-38° C) and elevated CO are well understood, little research has assessed plant performance in elevated CO during extreme (>45ºC) temperature events.
		Before the initiation of high temperature, all Yucca species exposed to elevated CO showed decreases in carboxylation efficiency as compared to ambient grown plants.
		This pattern is in contrast to the hypothesis that high temperatures in elevated CO would increase the potential for photoinhibition.
	www.unlv.edu /Colleges/Sciences/Biology/Climate_Change_Research/Publications/huxman-pce2.htm (323 words)

	Yucca plant and seed varieties from rich farm garden (Site not responding. Last check: 2007-10-24)
		The hardiest of the yuccas, tolerating temperatures to 0 degrees or less with some protection.
		Datil Yucca - Yucca baccata - Forms a large clumping rosette on the ground with blue green leaves - very sharp.
		Medicinally, yucca is used to treat skin disorders and at once time a tea made from boiled roots was used to induce menopause.
	www.richfarmgarden.com /yucca.html (299 words)

	NDRC: Publications: Loik et al. 2000
		Low-temperature tolerance was similar to extreme minimum air temperatures for the collection sites averaged over the period 1961 to 1990.
		For seedlings exposed to elevated CO, low-temperature tolerance was -11.9°C for Yucca brevifolia, -9.6°C for Y.
		The results suggest that survival during episodic sub-zero temperature events will be enhanced for seedlings of these three yucca species in a future elevated CO environment.
	www.unlv.edu /Colleges/Sciences/Biology/Climate_Change_Research/Publications/loik-jae.htm (244 words)

	Yucca brevifolia
		Yucca brevifolia forma herbertii forma nov. Webber, Agric.
		Yucca brevifolia forma kernensis Fritz Hochstätter seed list #13, 1999.
		brevifolia large specimen of Joshua Tree (Yucca brevifolia) in Joshua Tree National Monument.
	www.bennyskaktus.dk /Y_brevi.htm (313 words)

	DFT Vascular Plant Image Library (Agavaceae)
		Yucca elata - Native, from Big Bend National Park.
		Yucca elephantipes [jpeg] - Cultivated, from Maui, Hawaii.
		Yucca torreyi - Native, from Winston Ranch, Uvalde Co., Texas.
	csdl.tamu.edu /FLORA/imaxxaga.htm (1566 words)

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