| Pittocaulon praecox | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Pittocaulon |
| Species: | P. praecox |
| Binomial name | |
| Pittocaulon praecox | |
| Synonyms [2] | |
Cineraria praecoxCav. | |
Pittocaulon praecox is the type species for the genus Pittocaulon and family Asteraceae. This species also has the widest range of the genus. [3]
It is a deciduous shrub or small tree up to 4 meters high. Its succulent, erect, light gray stems fork like a candelabrum. The glabrous leaves, cordate at the base, are grouped at the upper end of the branches, with petioles up to 17.5 cm long. The entire margins have 5 to 8 acuminate lobes. The inflorescences are grouped into five or six ligule that simulate yellow petals. The fruit is less than 1 cm long and is a dry cylindrical or clavate achene with a pappus of white bristles.
It is a plant native to the semi-arid and temperate zones of central and southern Mexico. Its short roots allow it to grow on thin and uneven soils. In particular, it has found a niche thriving on deposits of extrusive igneous material, such as the Nealtican malpaís and the Pedregal de San Ángel (Coyoacán, Mexico City). The proliferation of Pittocaulon praecox in the Pedregal de San Ángel has been such that its xerophytic ecosystem It is usually classified as “matorral de palo loco”.
An infusion made from the leaves is a traditional remedy against rheumatism, wounds and dermatitis.
Fouquieria columnaris, the Boojum tree or cirio is a tree in the ocotillo family, whose other members include the ocotillos. Some taxonomists place it in the separate genus Idria. It is nearly endemic to the Baja California Peninsula, with only a small population in the Sierra Bacha of Sonora, Mexico. The plant's English name, Boojum, was given by Godfrey Sykes of the Desert Laboratory in Tucson, Arizona, and is taken from Lewis Carroll's poem "The Hunting of the Snark".
Bergerocactus emoryi is a species of cactus, known commonly as the golden-spined cereus, golden snake cactus, velvet cactus or golden club cactus. It is a relatively small cactus, but it can form dense thickets or colonies, with the dense yellow spines giving off a velvety appearance when backlit by the sun. From April to May, yellow, green-tinged flowers emerge, which transform into reddish, globular fruit. This species is native to the California Floristic Province, and is found in northwestern Baja California and a small part of California, in San Diego County and on the southern Channel Islands. Where the Mediterranean climate of the California Floristic Province collides with the subtropical Sonoran Desert near El Rosario, hybrids with two other species of cacti are found. It is the sole member of the monotypic genus Bergerocactus, named after German botanist Alwin Berger.
Geohintonia mexicana is a species of cacti, the only species in the genus Geohintonia. This genus is named after its discoverer George S. Hinton. As its specific epithet suggests, the plant is found in Mexico, where it grows on gypsum hills near Galeana.
Muehlenbeckia complexa is a plant commonly known as pohuehue, although this name also applies to some other climbers such as Muehlenbeckia australis.
Agave mitis is a plant species native to the Mexican states of Hidalgo, Tamaulipas and San Luis Potosí, referred to as Agave celsii in many publications.
Agave shawii is a species of monocarpic succulent plant in the genus Agave, commonly known as Shaw's agave. It is a rosette-forming plant characterized by glossy, green leaves with toothed margins. After several years of slow growth, the plant puts all of its resources to produce a towering stalk of flowers, and then dies. The death of the flowering rosette is compensated by the growth of numerous clonal pups. This species is segregated into two subspecies, one native to the coast of southwestern California and northwestern Baja California, known commonly as the coast agave, and another native to the Baja California desert, known as the Goldman agave.
Dudleya pulverulenta is a species of perennial succulent plant known by the common names chalk lettuce, chalk dudleya, and chalk liveforever. It is one of the largest Dudleya, with a silvery, waxy rosette that may greatly contrast with its habitat. It is also regarded as one of the most distinctive members of the Dudleya, with one of the most specialized inflorescences in the genus, adapted to hummingbird pollination through its red pendent flowers, the longest corolla, and the highest nectar output. Dudleya pulverulenta has the largest range of all Dudleya, over 1,000 kilometres (620 mi), being found from southern Monterey County in California to the Sierra de San Borja in southern Baja California. It is closely related to Dudleya arizonica, a smaller desert species that tends to lack the specialized floral traits, and Dudleya anthonyi, which differs in a few morphological traits and is restricted to the San Quintín Volcanic Field.
Pittocaulon is a genus of Mexican shrubs and small trees in the tribe Senecioneae within the family Asteraceae.
Pachycormus is a monotypic genus of flowering plants in the cashew family commonly known as the Baja elephant tree, torote blanco, or copalquín. The single species Pachycormus discolor is endemic to the Baja California peninsula, with three varieties. This sarcocaulescent tree or shrub is characterized by its unique gnarled growth habit, skin-like exfoliating bark, and succulent nature, whose appearance has been colorfully described as "the proboscis of an elephant holding a nosegay," a "huge radish protruding from the ground," or "grotesque resemblances of the flexed limbs of a corpulent human being." This drought-deciduous species spends most of the year dormant, but following rains pinnate green leaves emerge, and in the late spring to summer the leaves yellow, fall, and give way to bright red, cream, or pink flowers that give it a striking appearance in bloom.
Agapanthus praecox is a popular garden plant around the world, especially in Mediterranean climates. It is native to the Kwa-Zulu Natal and Western Cape provinces of South Africa. Local names include agapant, bloulelie, isicakathi and ubani. Most of the cultivated plants of the genus Agapanthus are hybrids or cultivars of this species. It is divided into three subspecies: subsp.praecox, subsp. orientalis and subsp. minimus.
Ferocactus latispinus is a species of barrel cactus native to Mexico.
Agave parviflora is a species of succulent perennial flowering plant in the asparagus family, known by the common names Santa Cruz striped agave, smallflower century plant, and small-flower agave. It is native to Arizona in the United States and Sonora in Mexico.
Pachyphytum oviferum, the sugaralmond plant or moonstone, is a species of plant in the genus Pachyphytum.
Agave filifera, the thread agave, is a species of flowering plant in the family Asparagaceae, native to Central Mexico from Querétaro to Mexico State. It is a small or medium-sized succulent plant that forms stemless rosette up to 3 feet (91 cm) across and up to 2 feet (61 cm) tall. The leaves are dark green to a bronzish-green in color and have very ornamental white bud imprints. The flower stalk is up to 11.5 feet (3.5 m) tall and is densely loaded with yellowish-green to dark purple flowers up to 2 inches (5.1 cm) long. Flowers appear in autumn and winter.
Agave xylonacantha is a plant species native to Hidalgo, Tamaulipas, Guanajuato and Queretaro in Mexico, but commonly cultivated as an ornamental on other regions. A. xylonacantha is an easy-to-grow member of the genus Agave. The specific epithet 'xylonacantha' means "wood spines".
Dudleya ingens is a species of perennial succulent plant in the family Crassulaceae commonly known as the rock liveforever or Baja liveforever. A relatively large member of the genus Dudleya, this species has long green succulent leaves, and in April to June is characterized by pale yellow to white pink-tinged flowers topping tall, reddish inflorescences. It has a stem clothed densely with old, leathery leaves, and the inflorescence may be nodding, with the floral branches bearing the flowers tending to unfurl like the fronds of a fern. It is similar in appearance to Dudleya brittonii, but differs in range and chromosome number. This species is endemic to the state of Baja California in Mexico, being found from Santo Tomás to the southern coast of the state.
Ferocactus macrodiscus is a species of cactus in the genus Ferocactus from Guanahuato and Oaxaca States, Mexico.
Dudleya pachyphytum is an insular succulent plant known by the common name Cedros Island liveforever. It is a member of the genus Dudleya, in the family Crassulaceae. Characterized by thick, blunt leaves covered in a white, powdery wax and adorned by white flowers in bloom, it is regarded as one of the most attractive and charismatic members of its genus. It is endemic to the foggy northern end of Mexico's Cedros Island, occupying an ecological niche shared with the Cedros Island Pine.
Dudleya arizonica is a species of perennial succulent plant commonly known as the Arizona chalk dudleya and the Arizona liveforever. A member of the genus Dudleya, this species is characterized by long, red flowers that adorn a waxy rosette of succulent leaves. It resembles a reduced desert form of the more coastal chalk dudleya, Dudleya pulverulenta, but differs in its smaller stature, lower number of leaves, and orientation of the flowers. Native to the southwestern United States and northwestern Mexico, it is widespread in range, but is primarily found in scattered, widely separated localities. It can be found as far west as coastal Ensenada to the desolate desert ranges of Nevada. It is one of two species of Dudleya that occur in Arizona, the other being Dudleya saxosa subsp. collomiae, and is the only species on mainland Mexico and in Utah.
Nolina beldingii is a species of perennial flowering plant in the family Asparagaceae known commonly as the Cape nolina or Belding's beargrass. It is an arborescent monocot growing up to 7 metres (23 ft) high, with fissured bark on a trunk topped with leaf rosettes. The narrow leaves are up to 1.15 m (3.8 ft) long, and are used as thatching by local peoples. This species is endemic to Baja California Sur in Mexico, where it grows only in the highest reaches of the Sierra de la Laguna. It is found primarily in oak forests at elevations over 1,000 m (3,300 ft) along rocky granite outcrops.
Media related to Pittocaulon praecox at Wikimedia Commons
