This section is from the "Ornamental Gardening In Florida" book, by Charles Torrey Simpson. Also see Amazon: Ornamental Gardening In Florida.
Erythrina herbacea, Coral Bush, is a straggling shrub with trifoliate leaves and in spring, spikes of dark crimson flowers which are followed by moniliform pods containing scarlet beans. There is a form growing in South Florida that is sometimes arboreal which has been called Erythrina arborea, but is probably only a variety of the above.
Hamelia Patens has no common name that I know, though it is attractive enough to deserve one. It is a large, rather compact shrub with reddish green, oval leaves and clusters of elegant, tubular, orange red flowers borne throughout most of the year. It thrives in pine land over the south half of the state.
Catesbaea Parviflora, a thorny, branching shrub with small, almost round, glossy leaves and white flowers which is quite ornamental. I have only seen it on Bahia Honda Key where it stands a chance of speedy extermination. It grows in dry, sandy soil.
A large shrub or small tree growing in the northern part of the state, with oval or oblong leaves and showy, greenish flowers spotted with purple. It grows in swamps or low hammocks.
It is hard to say whether this and the following are trees, shrubs or herbaceous perennials. This species extends along the Atlantic coast into North Florida while F. aloifolia is Floridian and West Indian.
Both of these are splendid ornaments of the flower garden and will grow in poor soil and with little care. The former is not so tall as the latter and its leaves have smooth edges.
Sophora Tomentosa is an attractive, pinnate-leaved shrub with yellow flowers, growing along the coasts of peninsular Florida. Will do well in pine land.
This is found on the lower keys where it grows in immense clumps up to fifteen feet high; the stems being sometimes as large as a man's thigh. It is a most striking plant but it has never done well for me.
I first discovered this plant in a Floridian locality on shell mounds in McGill's Bay, near Terra Ceia on the west coast; then later on several of the lower keys and the extreme southern mainland. It is a sprawler and bears large, handsome nocturnal white flowers. It has not done very well for me here but succeeded admirably at Bradentown.
Osmanthus Americanus, Florida Olive, is a fine large shrub with thick, lance-oblong leaves and panicles of dull white, fragrant flowers. It is hardy all over the state.
A half shrubby plant or bush with rough stems and leaves and umbels of strong-scented, yellow flowers. It will grow on pine or hammock land.
Callicarpa Americana is another half-shrub related to Lantana having dense clusters of purple berries in whorls on the stems. It grows usually in the edges of hammocks.
Tecoma Starts, Or Yellow Elder, is too well known over the south half of the state to need any description. It is the Queen of the Autumn here, being covered at intervals for months with great clusters of golden trumpets. It comes up in gardens very freely from naturally planted seed and these plants are so cheerful and beautiful I never have the heart to destroy them. It is naturalized in lower Florida.
 
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