| Colubrina greggii | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rhamnaceae |
| Genus: | Colubrina |
| Species: | C. greggii |
| Binomial name | |
| Colubrina greggii | |
Colubrina greggii, commonly known as Sierra nakedwood [3] or Gregg's colubrina, is a species of flowering plant in the family Rhamnaceae native to eastern Mexico, with a disjunct population in southern Texas in the United States. [4] [5] [6]
The name honours American botanist Josiah Gregg (1806 – 1850), who collected the holotype near Monterrey, Nuevo León in 1848. [7] [8] [9]
Colubrina greggii is a shrub 2–3 m in height or a small tree, reaching 5 m. Stems zigzag and are glabrate to loosely sericeous. Leaves are alternately arranged, simple, ovate to lanceolate-ovate or elliptic-ovate, and have finely toothed margins. The blades measure 6–18 cm in length and 3–8 cm in width. Petioles are 4–20 mm long. The inflorescence is a thyrse with 20-80 flowers. Peduncles measure 5–12 mm in length. The flowers are greenish-yellow, with stamens opposite the spoon-shaped petals. Flowering takes place in the spring or summer through fall. Fruiting pedicels are 5–10 mm in length. The fruit is a hard, globose capsule approximately 8–10 mm in diameter, on which calyx remnants form an equatorial ring. [4] [6] [10] [11] [12] It is very similar to C. arborescens of southern Florida and the Caribbean, and herbarium specimens of the two species are difficult to distinguish. [13]
C. greggii can be found in the states of Coahuila, Guanajuato, Hidalgo, Nuevo León, Queretaro, San Luis Potosi, Tamaulipas, and Veracruz in Mexico. [12] In Texas, this species is restricted to the lower Rio Grande Valley, [4] where it is associated with Sabal mexicana at 0–10 m (0–33 ft). [12] In Queretaro and Guanajuato, C. greggii can be found in primary and secondary tropical dry forests, xeric shrublands, and oak forests from 300–1,600 m (980–5,250 ft). [14]
Colubrina greggii is part of a species complex with C. angustior of San Luis Potosi, southern Tamaulipas, and northern Veracruz and C. yucatanensis of Campeche, Quintana Roo, Yucatán, and Guatemala's Petén Department. The latter two species were considered varieties of C. greggii until they were raised to full species in 2013. [6] [15]
Zinnia is a genus of plants of the tribe Heliantheae within the family Asteraceae. They are native to scrub and dry grassland in an area stretching from the Southwestern United States to South America, with a centre of diversity in Mexico. Members of the genus are notable for their solitary long-stemmed 12 petal flowers that come in a variety of bright colors. The genus name honors German master botanist Johann Gottfried Zinn (1727–59).
Grindelia (gumweed) is a genus of plants native to the Americas belonging to the family Asteraceae. The genus was named for Latvian botanist David Hieronymus Grindel, 1776–1836.
Bouteloua is a genus of plants in the grass family. Members of the genus are commonly known as grama grass.
Colubrina is a genus of about 30 species of flowering plants in the family Rhamnaceae, native to warm temperate to tropical regions of Africa, the Americas, southern Asia, northern Australia, and the Indian Ocean islands.
Colubrina elliptica, also known as mabi or soldierwood, is a species of flowering tree in the family Rhamnaceae that is native to the Florida Keys, the Caribbean, Central America, Mexico, and Venezuela.
Heterotheca is a genus of North American plants in the family Asteraceae.
Parthenium is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae.
Thymophylla is a genus of perennial flowering plants in the tribe Tageteae within the family Asteraceae. Pricklyleaf is a common name for plants in this genus.
Gutierrezia is a genus of flowering plants in the family Asteraceae, native to western North America and western South America. Plants of this genus are known generally as snakeweeds or matchweeds. Some species have been called greasewood. They are annual or perennial plants or subshrubs with yellow or white flowers.
Conoclinium, the mistflowers, is a genus of four species of herbaceous perennial flowering plants, native to North America. They are 0.5 to 2 metres tall, and have blue to purple or violet flowers.
Ageratina havanensis, the Havana snakeroot or white mistflower, is a species of flowering shrub in the family Asteraceae, native to the south-western United States (Texas), Cuba, and north-eastern and east-central Mexico. Unlike many other species of Ageratina, it is evergreen.
Ceanothus pauciflorus, known by the common name Mojave ceanothus, is a species of flowering shrub in the buckthorn family, Rhamnaceae. It is native to the Southwestern United States and Mexico, where it grows primarily in shrubland communities at moderate to high elevations. It is characterized by oppositely arranged leaves, corky stipules and white flowers. It was formerly known as Ceanothus greggii.
Astranthium, or Western-daisy, is a North American genus of flowering plants in the family Asteraceae. Astranthium is native to the United States and Mexico.
Neonesomia is a genus of North American flowering plants in the aster tribe within the sunflower family.
Xanthocephalum is a genus of North American plants in the tribe Astereae within the family Asteraceae.
Chrysactinia is a genus of flowering plants in the family Asteraceae, native to Mexico and to the southwestern United States.
Quercus polymorpha, the Mexican white oak, Monterrey oak or netleaf white oak, is a North American species of oak. It is widespread in Mexico, Guatemala, and Honduras, and known from a single population in the United States but widely planted as an ornamental.
Symphyotrichum potosinum is a species of flowering plant in the family Asteraceae native to Mexico and the U.S. state of Arizona. Commonly known as Santa Rita Mountain aster, it is a perennial, herbaceous plant that may reach heights of 15 to 45 centimeters.
Symphyotrichum moranense is a species of flowering plant in the family Asteraceae. It is a perennial and herbaceous plant that reaches about 90 centimeters in height. Its white ray florets open October through April, and it is native to Mexico.
Fraxinus greggii, the littleleaf ash or Gregg's ash, is a species of flowering plant in the family Oleaceae, native to Texas and Mexico. A xerophytic shrub or scrubby tree reaching 6 m (20 ft), it is suitable for screens and containers. There is a cultivar, 'Libby Davison'.
