Question: The genus Omphalodes and the genus Gelsemium are both examples of what?

full_context: Document 1: Gelsemium: Gelsemium is an Asian and North American genus of flowering plants belonging to family Gelsemiaceae. The genus contains three species of shrubs to straggling or twining climbers. Two species are native to North America, and one to China and Southeast Asia.
Document 2: Gelsemine: Gelsemine (CHNO) is an indole alkaloid isolated from flowering plants of the genus "Gelsemium", a plant native to the subtropical and tropical Americas, and southeast Asia, and is a highly toxic compound that acts as a paralytic, exposure to which can result in death. It has generally potent activity as an agonist of the mammalian glycine receptor, the activation of which leads to an inhibitory postsynaptic potential in neurons following chloride ion influx, and systemically, to muscle relaxation of varying intensity and deleterious effect. Despite its danger and toxicity, recent pharmacological research has suggested that the biological activities of this compound may offer opportunities for developing treatments related to xenobiotic- or diet-induced oxidative stress, and of anxiety and other conditions, with ongoing research including attempts to identify safer derivatives and analogs to make use of gelsemine's beneficial effects.
Document 3: Ornithogalum: Ornithogalum is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae. Some species are native to other areas such as the Caucasus. Growing from a bulb, species have linear basal leaves and a slender stalk, up to 30 cm tall, bearing clusters of typically white star-shaped flowers, often striped with green. The common name of the genus, Star-of-Bethlehem, is based on its star-shaped flowers, after the Star of Bethlehem that appeared in the biblical account of the birth of Jesus. The number of species has varied considerably, depending on authority, from 50 to 300.
Document 4: Wisteria: Wisteria (also spelled Wistaria or Wysteria) is a genus of flowering plants in the legume family, Fabaceae (Leguminosae), that includes ten species of woody climbing vines native to the Eastern United States and to China, Korea, and Japan. Some species are popular ornamental plants. An aquatic flowering plant with the common name wisteria or 'water wisteria' is in fact "Hygrophila difformis", in the family Acanthaceae.
Document 5: Gesneria: Gesneria is a genus of approximately 50 species in the flowering plant family Gesneriaceae. Except for two or three odd South American species, all are native to islands of the Caribbean. The genus is classified in the tribe Gesnerieae along with the genera "Bellonia", "Pheidonocarpa", and "Rhytidophyllum". "Gesneria" species are usually woody shrubs or subshrubs, and (with the closely related "Rhytidophyllum") are unusual in the family in having alternately (rather than decussately) arranged leaves. A complete list of the accepted species and their synonyms can be found in the Smithsonian Institution's World Checklist of Gesneriaceae.
Document 6: Mertensia: Mertensia is a genus of flowering plants in the family Boraginaceae. They are perennial herbaceous plants with blue or sometimes white flowers that open from pink-tinged buds. Such a change in flower color is common in Boraginaceae and is caused by an increase of pH in the flower tissue. "Mertensia" is one of several plants that are commonly called "bluebell". In spite of their common name, the flowers are usually salverform (trumpet-shaped) rather than campanulate (bell-shaped).
Document 7: Omphalodes verna: Omphalodes verna (common names creeping navelwort or blue-eyed-Mary) is an herbaceous perennial rhizomatous plant of the genus "Omphalodes" belonging to the family Boraginaceae.
Document 8: Nemophila phacelioides: Nemophila phacelioides is a flowering forb native to Texas, Oklahoma, Louisiana, and Alabama. The plant has medium-sized blue or purple flowers, and is an annual plant. The flower is known commonly as baby blue eyes, Texas baby blue eyes, largeflower baby blue eyes, or flannel breeches.
Document 9: Cestrum: Cestrum is a genus of - depending on authority - 150-250 species of flowering plants in the family Solanaceae. They are native to warm temperate to tropical regions of the Americas, from the southernmost United States (Florida, Texas: day-blooming cestrum, "C. diurnum") south to the Bío-Bío Region in central Chile (green cestrum, "C. parqui"). They are colloquially known as cestrums or jessamines (from "jasmine", due to their fragrant flowers).
Document 10: Caulophyllum: Caulophyllum is a small genus of perennial herbs in the family Berberidaceae. It is native to eastern Asia and eastern North America. These plants are distinctive spring wildflowers, which grow in moist, rich woodland, it is known for its large triple-compound leaf, and large blue, berry-like fruits. Unlike many spring wildflowers, it is not an ephemeral plant and persists throughout much of the summer. Common names for plants in this genus include Blue Cohosh, Squaw Root, and Papoose Root. As hinted at by its common names, this plant is well known as an alternative medicine for inducing childbirth and menstrual flow; it is also considered a poisonous plant.
Document 11: Gordonia (plant): Gordonia is a genus of flowering plants in the family Theaceae, related to "Franklinia", "Camellia" and "Stewartia". Of the roughly 40 species, all but two are native to southeast Asia in southern China, Taiwan and Indochina. The remaining species, "G. lasianthus" (Loblolly-bay), is native to southeast North America, from Virginia south to Florida and west to Louisiana; "G. fruticosa" is native to the tropical rainforests of Central and South America, from Costa Rica to Brazil.
Document 12: Myosotis: Myosotis ( ; from the Greek: μυοσωτίς "mouse's ear", after the leaf) is a genus of flowering plants in the family Boraginaceae. In the northern hemisphere they are commonly called forget-me-nots or scorpion grasses. The common name "forget-me-not" was calqued from the German "Vergissmeinnicht ", and first used in English in 1398 AD via King Henry IV. Similar names and variations are found in many languages. "Myosotis alpestris" is the state flower of Alaska and Dalsland Sweden. Plants of this genus are commonly confused with Chatham Islands forget-me-nots which belong to a related genus, "Myosotidium".
Document 13: North American azaleas: North American azaleas are flowering shrubs in the genus "Rhododendron", section "Pentanthera", subsection Pentanthera, so named because they all have five stamens. Most are in the United States, with one species found in Canada and one being found in Mexico. North American azaleas are commonly confused with azaleas of Asian origin, the evergreen azaleas. North American azaleas are deciduous and produce two types of buds. One is a larger and produces about 20 flowers while the other bud produces a leafy shoot. The flower color, fragrance, and number of stamens vary among species.
Document 14: Omphalodes: Omphalodes (navelwort) is a genus of flowering plants in the family Boraginaceae. Widely distributed in the temperate Northern Hemisphere. In spring they produce blue or white flowers similar to forget-me-nots.
Document 15: List of Omphalodes species: A list of species in the genus Omphalodes'.
ground_truth: flowering plants