Lonicera etrusca is a species of honeysuckle known by the common name Etruscan honeysuckle. It is native to Southern Europe, Western Asia and North Africa and it is known elsewhere, including the Pacific Northwest of North America, as an introduced species where it has escaped cultivation. It is kept in gardens as an ornamental plant.
Rhinanthus minor, known as yellow rattle, is a herbaceous wildflower in the genus Rhinanthus in the family Orobanchaceae. It has circumpolar distribution in Europe, Russia, western Asia, and northern North America. An annual plant, yellow rattle grows up to 10–50 centimetres (3.9–19.7 in) tall, with upright stems and opposite, simple leaves. The fruit is a dry capsule, with loose, rattling seeds.
Sida rhombifolia, commonly known as arrowleaf sida, is a perennial or sometimes annual plant in the Family Malvaceae, native to the Old World tropics and subtropics. Other common names include rhombus-leaved sida, Paddy's lucerne, jelly leaf, and also somewhat confusingly as Cuban jute, Queensland-hemp, and Indian hemp. Synonyms include Malva rhombifolia. It is used in Ayurvedic medicine, where it is known as kurumthotti.
Centaurea calcitrapa is a species of flowering plant known by several common names, including red star-thistle and purple star thistle. It is native to Europe but is rarely found there, it is known across the globe as an introduced species and often a noxious weed. The species name calcitrapa comes from the word caltrop, a type of weapon covered in sharp spikes.
A parasitic plant is a plant that derives some or all of its nutritional requirements from another living plant. They make up about 1% of angiosperms and are found in almost every biome. All parasitic plants develop a specialized organ called the haustorium, which penetrates the host plant, connecting them to the host vasculature – either the xylem, phloem, or both. For example, plants like Striga or Rhinanthus connect only to the xylem, via xylem bridges (xylem-feeding). Alternately, plants like Cuscuta and some members of Orobanche connect to both the xylem and phloem of the host. This provides them with the ability to extract resources from the host. These resources can include water, nitrogen, carbon and/or sugars. Parasitic plants are classified depending on the location where the parasitic plant latches onto the host, the amount of nutrients it requires, and their photosynthetic capability. Some parasitic plants can locate their host plants by detecting volatile chemicals in the air or soil given off by host shoots or roots, respectively. About 4,500 species of parasitic plants in approximately 20 families of flowering plants are known.
Calycadenia multiglandulosa is a species of flowering plant in the family Asteraceae, known by the common names sticky calycadenia and sticky western rosinweed. It is endemic to California, where it is a common in the Coast Ranges and in the Sierra Nevada Foothills from Shasta County to Kern County.
Orobanche fasciculata is a species of broomrape known by the common name clustered broomrape. It is native to much of western and central North America from Alaska to northern Mexico to the Great Lakes region, where it grows in many types of habitat. It is a parasite growing attached to the roots of other plants, usually members of the Asteraceae such as Artemisia; and other genera such as Eriodictyon and Eriogonum. This plant produces one or more stems from a bulbous root, growing erect to a maximum of about 20 centimeters in height. The stems, leaves and five-lobed flowers are covered by sticky hairs. As a parasite taking its nutrients from a host plant, it lacks chlorophyll as well as a water-storage system. It is variable in color, often yellowish or purple. The inflorescence is a raceme of up to 20 flowers, each on a pedicel up to 15 centimetres long. Each flower has a calyx of hairy triangular sepals and a tubular corolla 1.5–3 cm long. The flower is yellowish or purplish in color.
Orobanche ramosa is a species of broomrape known by the common names hemp broomrape and branched broomrape. It is native to Eurasia and North Africa, but it is known in many other places as an introduced species and sometimes a noxious weed.
Parentucellia latifolia is a species of flowering plant in the family Orobanchaceae known by several common names, including red bartsia, red tarweed, and broadleaf glandweed. It is native to Europe, but it can be found on other continents, including Australia, as an introduced species. This is an erect annual herb producing a stiff, slender stem coated in hairs and sticky glands. It reaches a maximum height near 30 centimeters. The hairy leaves are divided into triangular or lance-shaped lobes. The inflorescence is a raceme of flowers at the end of the stem. The flower is tubular, the calyx of sepals extending about halfway along the centimeter-long corolla. The corolla is magenta in color, sometimes with white areas, and bearing two raised yellow appendages in the lobed throat.
Petrorhagia dubia is a species of flowering plant in the family Caryophyllaceae known by the common name hairy pink. It is native to southern Europe and the Mediterranean Basin, but it is known on other continents, including Australia and North and South America, as an introduced species and sometimes a weed. It is an annual herb growing 25 to 60 centimeters tall, but known to reach 90 centimeters in height. The leaves are up to 6 centimeters long, sheathing the stem at the bases. The inflorescence bears a head-like cluster of flowers, their bases enclosed in a large, expanded mass of wide, claw-tipped bracts. The flower corollas are each further encased in a tubular calyx of sepals. The petals are bright pink to magenta or lavender in color with darker veins. Each is heart-shaped or divided into two lobes at the tip. The fruit is a capsule containing many tiny seeds.
Physalis viscosa is a species of flowering plant in the nightshade family known by many common names, including starhair groundcherry, stellate ground-cherry and grape groundcherry in English, and arrebenta-cavalo, balãozinho, and camambú in Portuguese and Spanish. It is native to South America, and it is known on other continents as an introduced species and sometimes a weed. It can grow in many types of habitat, including disturbed areas.
Dittrichia viscosa, also known as false yellowhead, woody fleabane, sticky fleabane and yellow fleabane, is a flowering plant in the daisy family.
Trifolium glomeratum is a species of clover known by the common names clustered clover and bush clover. It is native to Eurasia and North Africa and it is known elsewhere as an introduced species. It easily takes hold in disturbed areas, becoming a common weed. It is an annual herb growing decumbent to upright in form with mostly hairless herbage. The leaves are made up of oval leaflets up to 1.2 centimeters in length. The inflorescences occur in leaf axils, each a headlike cluster of many flowers. Each flower has a calyx of sepals with triangular points that bend outward, and a pink corolla.
Triphysaria pusilla is a species of flowering plant in the family Orobanchaceae known by the common name dwarf owl's-clover.
Veronica anagallis-aquatica is a species of flowering plant in the family Plantaginaceae known by the common names water speedwell, blue water-speedwell,brook pimpernel.
Vicia pannonica is a species of vetch known by the common name Hungarian vetch. It is native to southern, central Europe and western Asia, and it is sometimes cultivated as an agricultural crop for use as hay and fodder. It may escape cultivation and grow as a casual roadside weed.
Dolichandra unguis-cati, commonly known as cat's claw creeper, funnel creeper, or cat's claw trumpet, is a rapidly growing climbing vine belonging to the family Bignoniaceae. It affects all plant layers of the forest ecosystem spreading rapidly both vertically and horizontally.
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.
Alysicarpus vaginalis is a species of flowering plant in the legume family, Fabaceae. It is native to parts of Africa and Asia, and it has been introduced to other continents, such as Australia and the Americas. It is cultivated as a fodder for livestock, for erosion control, and as a green manure. Common names include alyce clover, buffalo clover, buffalo-bur, one-leaf clover, and white moneywort.
Castilleja rhexiifolia, commonly called rosy paintbrush, subalpine paintbrush, or rhexia-leaved paintbrush, is a species of plant in Orobanchaceae, commonly known as the broomrape family. They are a common flower found in moist habitats near or above timberline in the Rocky Mountains and the Pacific Northwest. Like most members of the Castilleja genus, they are partially parasitic plants.
