Yellow Trumpet Bush, Tecoma stans….Sò Đo bông vàng, Huỳnh Liên…#10

Yellow Trumpet Bush, Tecoma stans….Sò Đo bông vàng, Huỳnh Liên…#10
4th of july crafts
Image by Vietnam Plants & The USA. plants

Taken on July 16, 2012 in Hewitt city, Texas state, Southern of The United States of America.

Vietnamese named : Sò Đo bông vàng, Huỳnh Liên.
Common names : Yellow Bell , Yellow Trumpet Bush .
Scientist name : Tecoma stans (L.) Juss. ex Kunth
Synonyms : Bignonia stans L.
Stenolobium stans (L.) Seem.
Tecoma stans (L.) Juss. ex Kunth var. angustatum Rehder.
Family : Bignoniaceae – Trumpet-creeper family
Group : Dicot
Duration : Perennial
Growth Habit : Tree – Shrub
Kingdom : Plantae – Plants
Subkingdom : Tracheobionta – Vascular plants
Superdivision : Spermatophyta – Seed plants
Division : Magnoliophyta – Flowering plants
Class : Magnoliopsida – Dicotyledons
Subclass : Asteridae
Order : Scrophulariales
Genus : Tecoma Juss. – trumpetbush
Species : Tecoma stans (L.) Juss. ex Kunth – yellow trumpetbush


Huỳnh liên, So đo bông vàng – Tecoma stans (L.) H.B.K (Stenolobium stans (L.) Seem.) thuộc họ Núc nác – Bignoniaceae.

Mô tả: Cây nhỡ mọc đứng cao 2-4m, phân cành nhiều, cành tròn. Lá mọc đối, hai lần kép; lá chét bậc hai có răng, không lông. Chùm hoa đứng, đơn hay kép; hoa to, vàng rất tươi, đẹp; đài có 5 lá đài bằng nhau; tràng có ống dài 3cm, hai môi với 5 tai bằng nhau; nhị 4, không thò. Quả nang dài 5cm, dẹp dẹp; hạt tròn dài, có 2 cánh mỏng.

Ra hoa và mùa hè.

Bộ phận dùng: Rễ – Radix Tecomae.

Nơi sống và thu hái: Cây gốc ở Trung Mỹ (từ Nam Florida đến Bắc Achentina), được trồng vì hoa đẹp lại có hương thơm.

Thành phần hóa học: Rễ chứa triterpen, các hydrocarbon, nhựa; còn có alcaloid lỏng là tecomine và một alcaloid khác có độ sôi ở 275oC. Lá chứa một alcaloid khác là tecostanine.

Công dụng, chỉ định và phối hợp: Dân gian dùng rễ giã với nước muối, thêm nước chưng để uống trị sốt cao (Phân viện Dược liệu TP Hồ Chí Minh). Rễ được sử dụng ở Ấn Độ làm thuộc trị nọc độc, diệt chuột và trị bò cạp đốt. Có tác giả cho là rễ lợi tiểu và bổ. Hoa dùng trị đau bụng, có lẽ trị đái đường (Cây cỏ Việt Nam).


**** stans.pdf

The Tecoma stans, also known as esperanza, yellow trumpet flower, and yellow bells, is a perennial shrub native to the tropics that has become naturalized in southern and west Texas. It is a favorite in landscapes and grows well in both high and low moisture conditions. It grows in any fairly good soil and in full sun, and has no major insect or disease problems.

This shrub grows between 2 to 5 feet tall with several branches in the upper half. It produces showy clusters of yellow bell, or trumpet, shaped flowers from summer until frost. Green bean pods appear after the flowers fade. Cut the bean pods or shear plants to encourage repetitive blossoms.

It bears pecan-like leaves that are sharply toothed and shiny. The leaves range between 4 to 8 inches long, with 7 to 9 narrow leaflets, which are 1 1/2 to 4 inches long. Leaves contain about 15 percent protein, and both the leaves and the flowers are nutritious food for livestock.

All parts of the plant contain biologically active compounds that are used in traditional medicines. In Mexico, it is used as a common home remedy for Type II insulin-resistant diabetes. In addition, a tea made from the flowers and leaves helps to soothe indigestion caused by heavy drinking. Tecoma tea is also effective against colds and the flu. Indians made bows from its wood and, in Mexico, a type of beer was prepared from the roots.

Tecoma stans is the official flower of the United States Virgin Islands and the floral emblem of the Bahamas.

Yellow bell is an erect, branched, sparingly hairy or nearly smooth shrub, about 2 to 4 meters in height. Leaves are opposite, odd-pinnate, and up to 20 centimeters in length, with 5 or 7 leaflets. Leaflets are lanceolate to oblong-lanceolate, 6 to 13 centimeters long, pointed at both ends, and toothed at the margins. Flowers are yellow, faintly scented, borne in short, dense, terminal clusters. Calyx is green, 5 to 7 millimeters long and 5-toothed. The capsules are linear, compressed, 15 to 20 centimeters long, 6 to 8 millimeters wide, pointed and hanging from the branches. Seeds are numerous, less than 2 centimeters long, 7 millimeters wide and furnished with a transparent wing.

– Widely distributed in cultivation, although scarcely naturalized in the Philippines.
– Native of tropical America.
– Planted as an ornamental throughout the tropics and subtropics.

– Phytochemical analysis yielded tannin, flavonoids, phenol, alkaloids, steroids, anthraquinones and saponins in all solvent extracts.
– Isolated from the seed kernels: water, fixed oil, ash, tannin, resin, a bitter principle and a tannoid. From the leaves, water, ash, fat, resin and resinic acid. From the bark, water, ash, curnarin, a little fat, resin.
– Plant yields monoterpene alkaloids.
– Air-dried flowers yielded a new fatty acid cinnamate ester and a mixture of stigmasterol and sitosterol in a ratio of 1:1.
– In India, a foliage study yielded 17% crude protein, 6% ash, 18% fat, 25% fiber, and 14% total polyphenols.

Considered diuretic, tonic, anti-syphilitic, and vermifuge.

Parts utilized
Entire plant.

No reported folkloric medicinal use in the Philippines.
Roots are reported to be diuretic, tonic, anti-syphilitic and vermifuge.
In Veracruz, decoction of flowers and bark are used for stomach pains.
In some parts of Mexico and in central and south America, the plant is used in the treatment of diabetes.
In Guadalajara, roots used for making beer.

• Lipoxygenase Inhibitory Activity: Screening of 20 extracts from different parts of 10 Malaysian plants belong to 4 families showed the methanol extract of leaves and stems of Stenolobium stans had moderate inhibitory activity against soybean 15-lipoxygenase.
• Phytochemicals / Secondary Metabolites: Air-dried flowers of Stenolobium stans yielded a new fatty acid cinnamate ester and a mixture of stigmasterol and sitosterol in a 1:1 ratio.
• Genotoxic / Cytotoic Potential: Study evaluated the genotoxic activity of aqueous and ethanolic extracts. On higher concentrations, the plant extracts had a cytotoxic effect on a Mouse Embryo Fibroblast cell line. No clastogenic effect was noted in vivo but showed cytotoxic effects on mouse embryo in vitro.
• Antiulcer: Study of ethanolic extract for antiulcer properties showed a reduction of gastric juice, pH, free acid ulcer socre, and percentage of ulcer protection in pyloric ligated models. It was as effective as standard synthetic drugs like Ranitidine. Results showed a therapeutic potential for control of ulcer.
• Antidiabetic: Study of evaluated the antidiabetic mechanisms of Tecoma stans and Teucrium cubense. Results showed both exert their antidiabetic effects through stimulation of glucose uptake in both insulin-sensitive and insulin-resistant murine and human adipocytes without significant proadipogenic and antiadipoigenic side effects.
• Antimicrobial / Antioxidant: Study of methanol and ethanol extracts showed potent antimicrobial activity against E. coli, S. aureus, K. pneumonia, P. aeruginosa, P. fluorescens and moderate activity against Xanthomonas oryzae. All solvent extracts showed high activity against Aspergillus and Alternaria. Although the DPPH radical scavenging activity was less than ascorbic acid, results showed a proton donating ability and a potential to serve as free radical inhibitors or scavenging, acting possibly as primary antioxidants.
• Nephroprotective: Study an ethyl acetate floral extract showed an important role of reactive oxygen species and the relation to renal dysfunction and suggest a therapeutic potential of T. stans in gentamicin-induced nephrotoxicity.
• Antifungal: In a study of antifungal activity of nine different plant species, Tecoma stans showed to give the best zone of inhibition against the fungal activity.
• CNS Depressant Activity: Study in albino mice evaluated the CNS depressant potential of different extracts of T. stans flowers by measuring pentobarbitone-induced sleeping time and locomotor activity. The methanolic extract exhibited the highest depressant activity.
Wild-crafted and ornamental cultivation.
Seeds in the cybermarket.