23
Feb
2010
Flourensia cernua - tarbush
Trees and shrubs | Magnoliopsida

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
Top
Trees and shrubs
Theobroma cacao

Theobroma cacao - the tree deciduu originating from semi-tropical forests of Brazil, Mexico and the U.S.A

The genus name derives from the Greek "theos" = god, and 'bromine' = food, food of the gods.

 
Salix reticulata

Salix reticulata is a shrub alpine areas grows, from 1800-2700 m altitude in association with Silene acaulis and Dryas octopetala.

 
Ribes uva-crispa - agris, grapes bear

Thorny shrub, 1 m high. Gray-brown bark is exfoliating. Rich stem branched divaricata. Branches long, thin, gray-brown with yellow top, pubescent glabrata in youth and adulthood. Leaves simple, cordiforme, 3-5 lobed, toothed, long stalks

 
Abutilon darwinii

Abutilon darwinii - ornamental shrub originating in S Brazil. In hot climates are grown as ornamental plants in parks and gardens in cold climates are grown in pots for indoor or greenhouse.

 
Davidia involucrata var. involucrata

Arbore pana la 20 m inaltime; coroana la inceput conica apoi devine neregulata, ramuri orizontale. Scoarta gri-maronie. Mugurele terminal are forma ovoida, 6-7 mm lungime, acuminat, rosu-brun inchis. Mugurii laterali 6-8 mm lungime.

 
Magnoliopsida
Actinidia deliciosa - kiwi

Actinidia deliciosa fruits are edible, used for beverages, desserts, containing vitamin C, A and E and potassium.

 
Betula alba

Betula alba - species, ornamental, decorative crown shape and color of bark, in parks and gardens. The bark is rich in tannins, is used in cosmetics.

 
Cyclamen persicum

Cyclamen persicum is a tuberous perennial species, originated in Persia. Cordiforme leaves, 2-14 cm long, dark green, mottled with silver, long petiole. Flowers axillary, solitary, 5 petals ciclamen reflected color, red, white, purple, floral stem of 5-15 cm tall, blooming from late winter to early spring. Fruit capsule.

 
Ranunculus ficaria

Ranunculus ficaria is a member of Buttercup Family.

 
Tribulus terrestris - the old woman's teeth

Herbaceous annual, prostrata, with branches 80 cm long. Paripenat-compound leaves, 4-8 folio, oblong folio, 4.12 x 4 mm. Sepa 2-4 mm long. Petals 3.6 mm long. Stigma pyramidal-elongated. Blooms in May-September.

 
   Add to iGoogle
Last posts

Categories

Links