Castilleja | |
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Castilleja integra flowering stem in Coconino National Forest, Arizona | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Orobanchaceae |
Subtribe: | Castillejinae |
Genus: | Castilleja Mutis ex L.f. |
Species | |
Synonyms [1] | |
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Castilleja, commonly known as paintbrush, Indian paintbrush, or prairie-fire, is a genus of about 200 species of annual and perennial mostly herbaceous plants native to the west of the Americas from Alaska south to the Andes, northern Asia, and one species as far west as the Kola Peninsula in northwestern Russia. These plants are classified in the broomrape family Orobanchaceae (following major rearrangements of the order Lamiales starting around 2001; sources which do not follow these reclassifications may place them in the Scrophulariaceae). They are hemiparasitic on the roots of grasses and forbs. The genus was named after Spanish botanist Domingo Castillejo.
Castilleja was scientifically described by Carl Linnaeus the Younger using a partial description by José Celestino Bruno Mutis in 1782. [1] The type species was Castilleja fissifolia from Columbia. [2] The genus as a whole has never been renamed, however five others were described and named that are considered to be synonyms of Castilleja. [1] For example, in 1818 Thomas Nuttall described a genus that he named Euchroma meaning finely colored, moving the species now known as Castilleja coccinea out of Bartsia where it had been placed by Carl Linnaeus and also named another species as Euchroma grandiflora. [3] [1] However, Nutttall's Euchroma grandiflora had already been named and correctly placed as Castilleja sessiliflora by Frederick Traugott Pursh in 1813. [4]
There are 216 species that are considered valid by Plants of the World Online. [1] More than half, 119 species, are native to North America north of Mexico. [5]
The name Castilleja was chosen by Mutis as an honor for the Spanish naturalist Domingo Castillejo. Castillejo was a professor of medical materials and botany at the Cadiz Royal College of Surgery between 1770 and 1786. Mutis wrote in Latin, "Ab Stemodia quantum ex characteríbus video, valde diversa haec singularissimeplanta, proculdubio numeranda ínter Didynamas. Castillejam dixi in merítissimum honorem D. Castillejo Botanici Gadensis." [6] [7]
The species in Castilleja are quite varied in form and lifecycle. The genus includes many species that are completely herbaceous, lacking woody material in their above-ground parts. Though it also includes some slightly woody subshrubs and even a few woody shrubs. [5] They may grow as annual plants, but most of the species are perennial. [8] Their roots are equally diverse in structure ranging from taproots to fibrous root systems. Some species also have modified underground stems called rhizomes to spread short distances. [5]
Stem lengths range from a minute 1 centimeter to as much as 2 meters. [5] In almost all species the leaves are attached to the stems and alternating. The inflorescences are always at the ends of the stems, which may or may not branch. [8] The inflorescence usually have bracts that are brightly colored for the whole length or towards their ends. [5]
Castilleja species are eaten by the larvae of some lepidopteran species, including Schinia cupes (which has been recorded on C. exserta) and Schinia pulchripennis (which feeds exclusively on C. exserta), and checkerspot butterflies, such as Euphydryas species. [9] [10] Pollinators aid these plants in reproduction, with insects visiting the flowers, as well as hummingbirds for some species. [11]
Castilleja species can play an important role in plant community dynamics and multitrophic interactions. For example, Castilleja hemiparasitic reliance on other plant species may affect competition and dominance among other plant species in its community. [12] Additionally, the foliage of some Castilleja species naturally contains defensive compounds that are sequestered in the tissues of larvae of specialist insect species that have developed a tolerance for these compounds and are able to consume the foliage. [9] [10] These sequestered compounds then confer chemical protection against predators to larvae. [9] [10]
Some species in the Castilleja genus are able to hybridize, especially when ploidy levels match, and hybrids may produce viable seed. [13] [14] [15] This hybridization potential has been identified as a threat to the genetic integrity of certain endangered Castilleja species. [14]
The author Gregory L. Tilford claims that the flowers of Indian paintbrush are edible. However, these plants have a tendency to absorb and concentrate selenium in their tissues from the soils in which they grow, and can be potentially very toxic if the roots or green parts of the plant are consumed. Highly alkaline soils increase the selenium levels in the plants. [16] In addition Castilleja species will take up alkaloids from other plants when parasitizing them. [17]
Castilleja linariifolia is the state flower of Wyoming. [18]
Orobanchaceae, the broomrapes, is a family of mostly parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera were formerly included in the family Scrophulariaceae sensu lato. With its new circumscription, Orobanchaceae forms a distinct, monophyletic family. From a phylogenetic perspective, it is defined as the largest crown clade containing Orobanche major and relatives, but neither Paulownia tomentosa nor Phryma leptostachya nor Mazus japonicus.
Castilleja exserta is a species of plant in the genus Castilleja which includes the Indian paintbrushes. Its common names include purple owl's clover, escobita, and exserted Indian paintbrush.
Chelone glabra, or white turtlehead, is a herbaceous species of plant native to North America. Its native range extends from Georgia to Newfoundland and Labrador and from Mississippi to Manitoba. Its common name comes from the appearance of its flower petals, which resemble the head of a tortoise. In fact, in Greek, chelone means "tortoise" and was the name of a nymph who refused to attend the wedding of Zeus and was turned into a turtle as punishment. Its natural habitat is wet areas, such as riparian forests and swamps.
Festuca idahoensis is a species of grass known by the common names Idaho fescue and blue bunchgrass. It is native to western North America, where it is widespread and common. It can be found in many ecosystems, from shady forests to open plains grasslands.
Orthocarpus, or owl's-clover, is a genus of flowering plants in the family Orobanchaceae (broomrapes). They are native to North America. A number of species formerly included in Orthocarpus have been transferred to the genus Castilleja, which includes the plants commonly known as Indian paintbrush. Plants of the genus are generally less than 30 centimetres (1 ft) in height.
The variable checkerspot or Chalcedon checkerspot is a butterfly in the family Nymphalidae. It is found in western North America, where its range stretches from Alaska in the north to Baja California in the south and extends east through the Rocky Mountains into Colorado, Montana, New Mexico and Wyoming. The butterfly is usually brown or black with extensive white and yellow checkering and some red coloration on the dorsal wing. Adult wingspan is 3.2–5.7 cm (1.3–2.2 in). Adult butterflies feed on nectar from flowers while larvae feed on a variety of plants including snowberry (Symphoricarpos), paintbrush (Castilleja), Buddleja, Diplacus aurantiacus and Scrophularia californica.
Castilleja mollis is a species of Indian paintbrush known by the common name softleaf Indian paintbrush. It is endemic to the Channel Islands of California, where it is currently known only from Santa Rosa Island. An occurrence was once noted on San Miguel Island, but the plant has not been found there since 1938. Its habitat is the coastal sage scrub around the windy sand dunes and bluffs.
The Quino checkerspot is a butterfly native to southern California and northwestern Baja California. It is a subspecies of the common Edith's checkerspot and the second such subspecies to be listed under the federal Endangered Species Act.
Edith's checkerspot is a species of butterfly in the family Nymphalidae. It is a resident species of western North America and among the subspecies, entomologists have long been intrigued by their many phenotypic variations in coloration, wing length, and overall body size. Most populations are monophagous and rely on plants including Plantago erecta and Orthocarpus densiflorus as their host species in developing from eggs through to larvae, pupae, and mature butterflies. Males exhibit polygyny whereas females rarely mate more than once. Males devote most of their attention to mate acquisition, and such mate locating strategies such as hilltopping behavior have developed. Climate change and habitat destruction have impacted certain subspecies. Three subspecies in particular, Euphydryas editha quino, Euphydryas editha bayensis and Euphydryas editha taylori, are currently under protection via the Endangered Species Act.
Schinia pulchripennis, or the common flower moth, is a moth of the family Noctuidae that is distributed throughout North America, including California and Nevada.
Castilleja levisecta is a rare species of flowering plant in the family Orobanchaceae known by the common name golden paintbrush, or golden Indian paintbrush, listed under the Endangered Species Act in 1997. It is native to British Columbia and Washington, where it is known from eleven remaining populations. It occurred in Oregon but all natural occurrences there have been extirpated. It has been reintroduced to a few areas in Oregon, but it remains to be seen if the plants will survive. The plant is a federally listed endangered species of Canada and was listed as threatened in the United States in 1997. On June 30, 2021, the plant was proposed for delisting due to recovery. Effective August 18, 2023, the U.S. Fish and Wildlife Service issued a rule removing golden paintbrush from the Federal List of Endangered and Threatened Plants
Castilleja septentrionalis is a species of Indian paintbrush known by several common names, including northern paintbrush, sulfur paintbrush, and pale painted cup. There is taxonomic disagreement as to if it is one species widely distributed in mountain and alpine environments of North America or if there is a second species, Castilleja sulphurea, in the Rocky Mountains.
Euphydryas editha taylori, the Whulge checkerspot or Taylor's checkerspot, is a butterfly native to an area of the northwestern United States and Vancouver Island.
The Bay checkerspot is a butterfly endemic to the San Francisco Bay region of the U.S. state of California. It is a federally threatened species, as a subspecies of Euphydryas editha.
Castilleja sessiliflora is a species of flowering plant in the family Orobanchaceae known by the common names downy Indian paintbrush and downy paintedcup. It is native to the Great Plains of North America from southern Canada, through the central United States, to northern Mexico. It occurs as far west as the eastern slopes of the Rocky Mountains.
Castilleja coccinea, commonly known as scarlet Indian paintbrush or scarlet painted-cup, is a biennial flowering plant in the Orobanchaceae (broomrape) family. It is usually found in prairies, rocky glades, moist and open woodlands, thickets, and along streams in central and eastern North America.
Castilleja integra, with the common names orange paintbrush, Southwestern paintbrush, and wholeleaf paintbrush, is a partially parasitic herbaceous perennial plant native to the Southwestern United States and Northern Mexico. The species produces a relatively large amount of nectar and is attractive to hummingbirds. It is better suited to cultivation than most other species in the paintbrush genus (Castilleja) and is therefor used in xeriscape gardens and naturalistic meadows, even outside its native range.
Castilleja bella is a species in the Castilleja genus known by the common name Arteaga Indian paintbrush. It is native to northeastern Mexico, primarily the states of Nuevo León and Coahuila, where it grows in montane habitats.
Castilleja hispida is a species of flowering plant in the family Orobanchaceae, also known by the common name harsh paintbrush, or harsh Indian paintbrush. It is native to British Columbia, Alberta, Washington, Idaho, Montana, and Oregon.