Robert Everard Woodson

Mandevilla sanderi, the Brazilian jasmine, is a vine belonging to the genus Mandevilla. Grown as an ornamental plant, the species is endemic to the State of Rio de Janeiro in Brazil. It is a rapidly growing, creeping, perennial plant, pruning shoots about 60 cm per year. Despite its common name, the species is not a "true jasmine" and not of the genus Jasminum.

Callisia fragrans, the false bromeliad, false bromeliad plant or golden tendril, is a flowering plant species of the genus Callisia, in the spiderwort family, Commelinaceae that is native to Mexico.

Asclepias asperula, commonly called antelope horns milkweed or spider milkweed, is a species of milkweed native to the Southwestern United States and northern Mexico.

Allomarkgrafia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1932. It is native to Central America and northwestern South America. Species Allomarkgrafia brenesiana Woodson - Costa Rica, Panama Allomarkgrafia campanulata (Markgr. ex A.H.Gentry) J.F.Morales - Panama Allomarkgrafia ecuatoriana J.F. Morales - Colombia, Ecuador Allomarkgrafia foreroi A.H.Gentry - Colombia, Ecuador Allomarkgrafia insignis J.F.Morales - Costa Rica Allomarkgrafia laxiflora A.H.Gentry - Colombia, Ecuador Allomarkgrafia ovalis (Ruiz & Pav. ex Markgr.) Woodson - Peru

Tintinnabularia is a genus of flowering plants in the family Apocynaceae, first described for modern science as a genus in 1936. It is native to S Mexico, Guatemala, and Honduras. Species Tintinnabularia gratissima J.F.Morales - Veracruz Tintinnabularia mortonii Woodson - Oaxaca, Chiapas, Guatemala Tintinnabularia murallensis J.K.Williams - Honduras

Mandevilla laxa, commonly known as Chilean jasmine, is an ornamental plant in the genus Mandevilla of family Apocynaceae. M. laxa is native to southern Ecuador, Peru, Bolivia, and northern Argentina. It grows as a vine and is deciduous in cool climates. It can grow to 6 meters (20 feet) tall. Masses of heavily scented white flowers are produced in the summer. As it is not fully hardy and does not survive being frozen, in temperate zones it must be grown with the protection of glass, in an unheated greenhouse or conservatory. with full sunlight. In the United Kingdom it has gained the Royal

Mandevilla boliviensis is a species of flowering plant in the dogbane family Apocynaceae, native to a region ranging from Costa Rica south to Bolivia and Brazil. Common names include white mandevilla and white dipladenia. A twining woody climber (vine) with glossy oval evergreen perennial leaves, in its natural surroundings Mandevilla boliviensis can grow to 4 m (13 ft) tall, and in more northern places it reaches a height of about 2 m (6.6 ft) and may become deciduous. It has big white flowers with a yellow center which grow in clusters. It flowers from spring until the autumn. It does not

Himatanthus bracteatus is a species of the genus Himatanthus (Apocynaceae), native Venezuela, Colombia, the Guianas, Brazil, Peru, and Ecuador. It is a shrub with oblong, obovate and acuminate leaves, white flowers in terminal corymbs and follicles with winged seed.

Galactophora is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1932. It is native to South America. Species Galactophora angustifolia J.F.Morales - Colombia Galactophora colellana Morillo - SE Colombia, S Venezuela, NW Brazil Galactophora crassifolia (Müll.Arg.) Woodson - Venezuela, Colombia, Peru, Bolivia, W Brazil Galactophora pulchella Woodson - S Venezuela, NW Brazil Galactophora pumila Monach. - SE Colombia, S Venezuela Galactophora schomburgkiana Woodson - S Venezuela, S Guyana, Roraima

Asketanthera is a genus of plants in the family Apocynaceae first described as a genus in 1878. It is native to the West Indies. Species Asketanthera calycosa (A.Rich.) Woodson - Cuba Asketanthera dolichopetala (Urb.) Woodson - Dominican Republic Asketanthera longiflora Woodson - Dominican Republic + Haiti Asketanthera obtusifolia Alain - Sierra del Bahoruco in Dominican Republic Asketanthera picardae (Urb.) Woodson - Haiti Formerly included Asketanthera steyermarkii Markgr., syn of Macropharynx steyermarkii (Markgr.) J.F.Morales

Tradescantia longipes, commonly known as the wild crocus (although it is not closely related to plants in the genus Crocus), is a perennial herbaceous plant in the dayflower family. It is found only in the Ozark Mountains of southern Missouri and northern Arkansas in the Midwest United States. A spring blooming species, its flowers can be observed from April to May, typically in its preferred habitat of wooded slopes on rocky hillsides. While most other members of the genus in North America have stems reaching at least a few inches above the soil, the flowering shoots of Tradescantia longipes

Matelea carolinensis is a species of flowering plant in the family Apocynaceae known by the common names maroon Carolina milkvine and Carolina anglepod. It is native to the southeastern United States, where it grows in open deciduous woods and stream banks. It is a perennial twining vine forb/herb with milky sap and 5 to 10 cm heart-shaped leaves. The vine dies back and returns every year. The 1 to 2 cm flowers are deep purple, occasionally yellow. The fruit is a follicle.

Mandevilla splendens, the shining mandevilla, is a species of flowering plant in the family Apocynaceae. It is an evergreen vine, native to Brazil. It climbs by twining and can grow to 3 m (9.8 ft) high. It has wide green glossy leaves of elliptical or rectangular shape growing to 20 cm (7.9 in) long. The flowers are rose-pink with yellow centers, appearing from late spring to early summer. They are up to 10 cm (3.9 in) in length. It prefers temperatures remaining over 5–10 °C (41–50 °F). In temperate zones it can be placed outside during the summer months, but must have protection in winter.

Himatanthus obovatus is a species of genus Himatanthus in the family Apocynaceae, which is native Brazil, Bolivia, Guyana. It is common in Cerrado vegetation in Brazil. This plant is cited in Flora Brasiliensis by Carl Friedrich Philipp von Martius.

Asclepias solanoana is a rare species of milkweed known by the common names serpentine milkweed, prostrate milkweed, and solanoa. It is endemic to California, where it grows only in the North Coast Ranges north of the San Francisco Bay Area.

Amsonia hubrichtii, commonly known as Hubricht's bluestar, Arkansas bluestar, or thread-leaf bluestar, is a North American species of perennial flowering plant in the Apocynaceae (dogbane) family, first described in 1943. It is native to Oklahoma and Arkansas in the south-central United States. It is commonly used as an ornamental plant.

Tradescantia ozarkana, the Ozark spiderwort, is a species of Tradescantia. It is part of the Commelinaceae family, native to the States of Missouri, Arkansas, and Oklahoma in the south-central United States. It flowers from April to May and can be found in rich, rocky areas, including woods and bluff ledges.

Podandrogyne decipiens is a species in the Podandrogyne genus in the family Clemoaceae.

Matelea obliqua, commonly known as climbing milkvine, limerock milkvine or northern spinypod, is a species of flowering plant in the dogbane family. It a twining herbaceous vine that produces maroon flowers in summer. It is native to the eastern United States, where it is found in areas of calcareous rocky woodland. It is generally uncommon throughout its range, and is found in low densities.

Matelea alabamensis is a species of flowering plant in the dogbane family known by the common names Alabama milkvine, Alabama anglepod, and Alabama spiny-pod. It is native to the southeastern United States, where it occurs in Alabama, Georgia, and Florida. This rhizomatous perennial herb produces one to three stems which creep across the ground or twine around adjacent vegetation, reaching several meters in length. They are green or maroon-tinged, filled with a milky sap, and dotted with reddish glands on the newer parts. The oppositely arranged leaves are borne on petioles a few centimeters

Mandevilla torosa is a species of plant from Jamaica, which is extending its population towards southern Mexico. It has two varieties called "southern typical variety torosa" and "northern variety coulteri".

Kibatalia maingayi is a tree in the family Apocynaceae.

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Amsonia tharpii is a species of flowering plant in the family Apocynaceae, known by the common names Tharp's bluestar and feltleaf bluestar. It is native to New Mexico and Texas in the United States. This plant is a perennial herb with a woody taproot. It grows up to about 20 centimeters tall. The linear to lance-shaped leaves are each up to 3 centimeters long and are whorled about the stem. The leaves lower on the plant are wider than those near the top. The white, pale blue, or greenish flowers are borne in clusters at the stem tips. They are tubular and about 1.5 centimeters long. The

Amsonia kearneyana is a rare species of flowering plant in the dogbane family known by the common name Kearney's bluestar. It is native to Arizona, where there is only one native population in the Baboquivari Mountains of Pima County. There may also be a population just south of the border in Sonora, Mexico. The plant was federally listed as an endangered species in 1989. At that time the global population of the plant was made up of eight individuals in a riparian canyon. Since that time the plant has been manually propagated in an attempt to increase its numbers. Threats to the tiny native

Amsonia jonesii is a plant in the bluestar genus Amsonia known by the common name Colorado desert bluestar. It is in the dogbane family, but a separate genus. It grows in the deserts surrounding the Colorado River in the United States. It is now grown as a garden plant for its masses of light blue flowers and low water usage.

Vallesia antillana, common name pearl berry or tearshrub, is a flowering shrub that grows in The Bahamas, Greater Antilles, and Key West. A small population has also been found in Everglades National Park. The flowers do not have much fragrance. It is a perennial plant with white flowers and white fruit. It is in the family Apocynaceae. It has been used in landscaping and thrives in partial sun. The fruit form is a nearly translucent drupe.

Tradescantia ernestiana, commonly called Ernest's Spiderwort, is a species of plant in the dayflower family that is native mainly to the interior highlands of the United States with a disjunct population in Alabama. The plant is also found in Arkansas, Mississippi, Missouri, and Oklahoma. It is a perennial that produces purple or blue flowers in the spring on herbaceous stems.

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Mortoniella is a monotypic genus of flowering plants in the family Apocynaceae, first described as a genus in 1939. It contains only one known species, Mortoniella pittieri, native to Central America (Belize, Costa Rica, Nicaragua). The genus name of Mortoniella is in honour of Conrad Vernon Morton (1905–1972), an American botanist who did notable writings on Ferns. It was first described and published in Ann. Missouri Bot. Gard. Vol.26 on page 257 in 1939.