**Group 1: Viburnum Species**
– The generic name Viburnum originated in Latin.
– Latin name referred to V. lantana.
– Species include V. elatum, V. cassinoides, V. lentago, V. nudum, V. obovatum.
– Other species include V. prunifolium, V. rufidulum, Viburnum lepidotulum, Viburnum punctatum.
– More species under Euviburnum, Pseudotinus, Lutescentia, Amplicrenotinus, Urceolata.
**Group 2: Description of Viburnum**
– Leaves are opposite, simple, toothed or lobed.
– Flowers produced in corymbs, white to cream or pink.
– Fruits are spherical, oval, red to purple, some edible.
– Leaves eaten by larvae of many Lepidoptera species.
– Species like V. lantana, V. macrocephalum, V. rhytidophyllum, V. tinus, V. acerifolium.
**Group 3: Cultivation and Uses**
– Many viburnum species are popular in gardens for showy flowers and berries.
– Popular hybrids and cultivars like Viburnum bodnantense, Viburnum burkwoodii.
– Viburnum carlesii is known for round white flowerheads and strong fragrance.
– Viburnum davidii is an evergreen species with blue fruit.
– Viburnum dentatum has flat-topped flowers and bluish fruit.
**Group 4: Distribution and Taxonomy**
– Viburnum species are found in various regions globally.
– Circumboreal species like V. edule, V. koreanum, V. opulus.
– Taxonomic classification into different subgenera and sections.
– Varieties like Viburnum grandiflorum, Viburnum plicatum var. plicatum.
– Taxonomic relationships among different Viburnum species.
**Group 5: Additional Uses and Cultural Significance**
– Long shoots of some viburnums used for arrow-shafts in prehistory.
– Edible fruit of certain species like V. lentago used for making jam.
– Bark of some species used in herbal medicine as an antispasmodic.
– Some viburnum species are toxic and can cause vomiting.
– Cultural references like Viburnum opulus in Ukrainian traditional folk cultures and Lithuanian symbolism.