Allamanda cathartica

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Read about Allamanda cathartica in the Standard Cyclopedia of Horticulture 

Allamanda cathartica, Linn. Lvs. and calyx glabrous: plant tall-climbing: lvs. rather small, obovate, usually in 4's, and more or less wavy-margined, thin, acuminate: fls. golden yellow, white-marked in the throat, the lobes acuminate on one angle, 3 in. or less across, the tube gibbous or curved. S. Amer. B.M. 338. P.M. 8:77.— The type first described, but now rarely seen in cult.

Var. nobilis (A.nobilis, T. Moore). A strong, tall climber, with purple twigs: lvs. and calyx more or less hairy: lvs. in 3's or 4's, large, acuminate, very short- stalked: fls. very large (4-5 in. across), nearly circular in outline of limb, bright, clear yellow, with magnolia-like odor. Finest fls. in the genus. Brazil. B.M. 5764.

Var. schottii, (A. Schottii, Pohl). Strong-growing, suitable for rafters: young shoots and petioles slightly pubescent, the older sts. warty: lvs. in 3's or 4's, broadly lanceolate and acuminate: corolla large, rich yellow, the throat darker and beautifully striped. Brazil. B.M. 4351. A. magnifica, Hort., is a form of this.

Var. hendersonii (A. Wardleyana, Lebas. A. Hendersonii, Bull). Tall and vigorous, free-flowering, excellent for roofs: glabrous: lvs. large, elliptic-ovate, thick and leathery, in 3's or 4's: fls. large, yellow- orange, with 5 light spots in the throat, the corolla of thick substance, purplish on the exterior when in bud.—The commonest allamanda in this country. Intro. from Guiana by Henderson & Co., St. John's Wood, England, and distributed by Bull about 1865.

Var. grandiflora (A. grandiflora, Hook.). St. thin and wiry: lvs. thin, ovate-lanceolate, pointed, usually in 3's: fls. somewhat smaller than those of var. A. Hendersonii but larger than A. cathartica, lemon- or primrose-yellow. Brazil. —Thrives well when grafted on forms of A. cathartica. Plant rather bushy.

Var. Williamsii, Hort. Habit slender, easily trained into bush form or a dwarf climber: sts. terete, slender, wiry, dull green, bright red on side exposed to the sun, covered with short hairs: lvs. elliptic shortly petiolate, usually in 3's or rarely in 4's, rich dark green above, pale dull green below, hairy on both sides, especially along the midrib on the lower side; petiole 1/3 in. long, hairy: infl. rather short; fls. in pairs at each joint of the cyme; bracts much reduced, barely 1/16 in. long, acute; calyx erect, not spreading, sepals unequal, lanceolate, or elliptic, 1/3 in. long, green; corolla yellow, tube only slightly curved 2 1/2 in. long, narrow and stalk-like in lower half, then broadening out and becoming campanulate in upper half, upper side of the pouch suffused with reddish brown, limb spreading, 2 in. diam., lobes ovate, obtuse, 3/4 in. long, throat deeper shade of yellow and stained with reddish brown. Garden origin.


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Golden Trumpet
Unknown flower10 belize.jpg
Plant Info
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Gentianales
Family: Apocynaceae
Genus: Allamanda
Species: A. cathartica

Binomial name
Allamanda cathartica
L.

Allamanda cathartica (Golden Trumpet) is an ornamental plant of Allamanda genus in the Apocynaceae family, which is native from Brazil. This plant is cited in Flora Brasiliensis by Carl Friedrich Philipp von Martius.

It is mainly used to treat malaria.

External links

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