Question: Are Bidens and Browningia both types of barbed plants?
Context: Obstacle course racing (OCR) is a sport in which a competitor, traveling on foot, must overcome various physical challenges that are in the form of obstacles.  Mud and trail runs are combined and the races are designed to result in mental and physical collapse.  Obstacles include, but are not limited to, climbing over walls, carrying heavy objects, traversing bodies of water, crawling under barbed wire, and jumping through fire.  Many obstacles are similar to those used in military training, while others are unique to obstacle racing and are employed throughout the course to test endurance, strength, speed and, dexterity.  Races vary in both distance and challenge level, combining trail running, road running, and cross country running.  With race venues typically in large cities, organizers encourage athletes of all types to participate.  All Obstacles were introduced into Cross Country Running at Tough Guy, recorded on video 1989 - 2007.  Most signature obstacles were actually created by Mr Mouse.  According to the "Los Angeles Times" in 2012, the number of events—typically all-day festivals—rose rapidly.  In accordance with the sub-culture's fast rate of growth, the "Obstacle Race Magazine" was launched. Browningia is a genus of cacti, comprising 11 accepted and 3 unresolved species.  It is named for Webster E Browning (1869-1942), director of the Instituto Inglés, Santiago,Chile. Bidens tripartita is a common and widespread species of plants in the sunflower family, Asteraceae, commonly known as three-lobe beggarticks, three-part beggarticks, leafy-bracted beggarticks or trifid bur-marigold.  It is native to much of Eurasia, North Africa, and North America, with naturalized populations in Australia and on some Pacific Islands. Bidens micrantha is a species of flowering plant in the aster family known by the common name grassland beggarticks.  It is endemic to the Hawaiian Islands, where it and other "Bidens" species are known as kōʻ okoʻ olau.  It occurs in many types of habitat on Lānaʻ i, Maui, and Hawaiʻ i, including rocky cliffs, dry forests, mesic forests, wet forests, and high shrublands. Bidens is a genus of flowering plants in the aster family, Asteraceae.  The common names beggarticks, black jack, burr marigolds, cobbler's pegs, Spanish needles, stickseeds, tickseeds and tickseed sunflowers refer to the fruits of the plants, most of which are bristly and barbed, with two sharp pappi at the end.  The generic name refers to the same character; "Bidens" comes from the Latin "bis" ("two") and "dens" ("tooth"). Urticating hairs or urticating bristles, i.e. irritating hairs, are one of the primary defense mechanisms used by numerous plants, almost all New World tarantulas, and various lepidopteran caterpillars.  "Urtica" is Latin for "nettle" (stinging nettles are in the genus "Urtica"), and hairs that urticate are characteristic of this type of plant, and many other plants in several families.  This term also refers to certain types of barbed hairs that cover the dorsal and posterior surface of a tarantula's or caterpillar's abdomen.  Many tarantula species eject hairs from their abdomens, directing them toward potential attackers.  These hairs can embed themselves in the other animal's skin or eyes, causing physical irritation, usually to great discomfort. Bidens pilosa is a species of flowering plant in the aster family.  It is native to the Americas but it is known widely as an introduced species of other regions, including Eurasia, Africa, Australia, and the Pacific Islands.  It is a tall branched weed with thin yellow flowers that develop into a cluster of barbed seeds.  Its many common names include black-jack, beggar-ticks, cobbler's pegs, and Spanish needle.  The seeds are like short, stiff hairs.  They get stuck in feathers, fur, or socks, etc.  This bur is widespread throughout the warmer regions of the world.  Its little black seeds hook onto clothes or horses and thereby the bur spreads itself around.  It is susceptible to hand weeding if small enough, even then must be bagged, and thick mulches may prevent it from growing.  Each seed has two to four barbed spines.  A weed of gardens, woodlands, and waste areas, a person who brushes against it will end up covered in the burs and need to pick them off one by one.  Although this plant is considered a weed in some parts of the world, in other parts it is a source of food or medicine.  For example, it is reportedly widely eaten in Africa, and in Vietnam, during the Vietnam War soldiers adopted the herb as a vegetable, which lead to it being known as the "soldier vegetable". Bidens triplinervia is a Latin American species of flowering plants in the sunflower family.  It is native to Mesoamerica and South America, from Chihuahua State in northern Mexico to Jujuy Province in northern Argentina. Bidens aristosa is a North American species of plants in the sunflower family.  Common names include bearded beggarticks, western tickseed, long-bracted beggarticks, tickseed beggarticks, swamp marigold, and Yankee lice.  It is native to eastern and central United States and south-central Canada, from Maine south to Florida and west as far as Ontario, Texas, and Nebraska. Epiblema otiosana, the bidens borer, gets its common name from the genus "Bidens" which includes the food plants for the larva.  An adults wingspan ranges from 12 to 20 mm.  They range in North America from Maine and Ontario in the north, south to Florida and west to Kansas and Texas.
Answer: yes