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Scientific Name – Flourensia cernua DC. Synonim – Common name(s) – tarbush, blackbrush, varnishbush, hojasé, Yerba del Hule. Distribution and Habitat – common (endemic) on dry plains to the Chihuahuan Desert, Arizona, California, New Mexico and Texas at elevation ranging from 400-2000 m. Is associated with Hilaria mutica, Larrea tridentate, Prosopis sp., Scleropogon brevifolius. It is found in limestone or calcareous, deeper soils. Description – deciduous shrub, erect to procumbent, 30 -200 cm tall, much branched. Twig light brown, gray, slender, resinous, pubescent; trunk gray to dark gray, glabrous, sparingly striate, resinous. Leaves alternate, simple, elliptical or oblong to oval, 1.6-2.5 x 0.6-1.2 cm, acute, margins entire, adaxially green and glabrous, abaxially paller and glabrous or pubescent, veins often black; petioles 1-2.5 mm long, puberulent. Inflorescences small, solitary. Flowers with 3 series bracts; bracts linear; ray flowers absent; disk flower 12-20, yellow, resinous. Flowering in July to December. Fruit achene, 0.5-1 cm long, oblong, compressed, villous; papus of 2-4 unequal bristles, 2.5-3.3 mm long. Growth rate – slow Requirements – prefers heavy, deep soils; full sun, light water. Propagation – by seeds. Properties and Uses – mature fruit is poisonous to sheep and goats. In Mexic, an infusion of the leaves is drunk frequently to treat various gastrointestinal ailments. Curiosity – the genus Flourensia, tribe Heliantheae, consist of 32 species of resinous shrubs that grow from southern United States south to Argentina and Chile. Bibliography A.Powell – Trees and Shrubs of the Trans-Pecos and adjacent areas- University of Texas Press, 1998 James Stubbendieck, Stephan L. Hatch, L.M. Landholt – North American Wildland Plants – University of Nebraska Press, 2003 Mahendra Rai, Maria Cecilia Carpinella – Naturally Occuring Bioactive Compounds- Elsevier Science, 2006
See also
![]() ![]() Firmiana simplex - also known as Sterculia platanifolia, was named in honor of Karl Joseph von Firmiana (1718-1782). Firmiana simplex - ornamental species grown in parks and gardens in shady and protected from winds exhibitions. ![]() Scientific Name - Tilia cordata Synonyms - Tilia parvifolia Ehrh., Tilia ulmifolia Purpose .. Names of people - small-leaved lime, lime sulfur, lime hill, Littleleaf Linden, Lindenbluten, Tiliae flos, Fleur de Tilleul. Distribution and Habitat - originating in Europe, grows on nutrient-rich soil in warm areas. Description - tree, 20 feet tall. Trunk as thick (can reach up to 1 m diameter). Bark on young specimens is smooth, gray to dark gray becomes mature specimens or brown, pitted. Crown oval, conical. Olive-green stems, at first pubescent then glabrata. Buds 4-6 mm long, usually two outer scales unequal, shiny, olive-green to red-brown, terminal bud is absent. Leaves alternate, simple, subrotunde - ovate, 5-7 c Tilia cordata - tree, native of Europe, increases in nutrient-rich soil in warm areas. Lime flowers are the most popular remedy for colds and flu, tea is used to treat headaches, anxiety and nervous tension. ![]() Prunus armeniaca - shrub or small tree, native of northeastern China, knew and cultivated worldwide for its edible fruit. The seeds of Prunus armeniaca extract oil used in perfume industry, cosmetics and pharmacy. ![]() Tree 15-40 m high, trunk 1 m in diameter. Subsesile leaves or stalks, stalks up to 3 cm long, glabru or glabrescent; language to narrow obovata ovata, ovat-lanceolata, 6-15 x 2.5-7 cm, margins evening, the round, top-acute acuminata. ![]() Dioecious tree, 25 meters high. Dark brown bark with deep cracks. Glabra or slightly hairy stalk, thin, red-brown, smooth; mugurele terminal 3-5 mm, nested, 6-8 scales visible, few pubescent and Chile, bicolori with red edges and the rest suprafatei green. ![]() ![]() Leonida knotweed grows on rocks in eastern Peloponnisos, Greece, the share of 550-600 m. In Greece, Centaurea comprises a total of about 140 species and subspecies endemic. ![]() Quercus cerris - a species native to south-eastern Europe, cultivated as an ornamental tree, singly or in small groups. ![]() Ceiba pentandra - tree, native of tropical America, seen as a species cultivated in the Philippines, growing in arid regions,forests and grasslands from sea level to 1000 m altitude. ![]() Ostrya carpinifolia - used as an ornamental species for gardens, parks and green street. Ostrya is derived from Greek 'Ostrya', referring to the shape of bracts that protect the fruit. ![]() Heliosperma pusillum - herbaceous perennial, native to southern Europe, grows on limestone ravines, from 1000 to 2500 m altitude. |
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