This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol3", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Shrubs or trees, with entire dentate or lobed, sometimes stipulate leaves, and white or rarely pink flowers in compound cymes, the outer flowers sometimes radiant and neutral. Calyx-tube ovoid or turbinate, its limb short, 5-toothed. Corolla rotate or short-campanulate in our species, regular, 5-lobed. Stamens 5, inserted on the tube of the corolla; anthers oblong, exserted. Ovary 1-3-celled; style short, 3-lobed or 3-parted; ovules solitary in each cavity, pendulous. Drupe ovoid or globose, sometimes flattened, 1-seeded. Seed compressed; endosperm fleshy; embryo minute. [The ancient Latin name.]
About 100 species, of wide geographic distribution. Besides the following, about 5 others occur in the southern and western parts of North America. Type species: Viburnum Tinus L.
* Outer flowers of the cyme large, radiant; drupe red. Leaves doubly serrate, pinnately veined.
1. V. alnifolium.
Leaves 3-lobed, palmately veined.
2. V. Opulus.
3. V. pauciflorum.
Cymes 11/2' -21/2' broad, the rays slender; drupe nearly black.
4. V. acerifolium.
2. Leaves pinnately veined. a. Leaves coarsely dentate, the veins mostly prominent beneath. Leaves very short-petioled, pubescent.
5. V. pubescens.
Petioles 3"-2o" long.
Leaves glabrous, or with tufts of hairs in the axils beneath.
6. V. dentatum.
Leaves pubescent beneath, the pubescence more or less stellate. Drupe globose-ovoid; eastern and southern. Veins of the leaves not very prominent.
7. V. scabrellum.
Veins very prominent on the under sides of the leaves.
8. V. venosum.
Drupe oblong, twice as long as thick; western.
9. V. molle.
b. Leaves entire, crenulate, or serrulate, the veins not prominent. Native shrubs; drupes blue or black. Cymes manifestly peduncled.
Peduncles shorter than the cyme: leaves crenulate.
10. V. cassinoides.
Peduncle equalling or longer than the cyme; leaves mostly entire.
11. V. nudum.
Cymes sessile, or nearly so.
Leaves prominently acuminate.
12. V. Lentago.
Leaves obtuse, or merely acute.
Leaves and scarcely winged petioles glabrous, or nearly so.
13. V. prunifolium.
Veins of lower leaf-surfaces and winged petioles tomentose.
European shrub, or small tree, escaped from cultivation; drupes red.
15. V. Lantana.
A shrub, with smooth purplish bark, sometimes reaching a height of 10°, widely and irregularly branching, the branches often procumbent and rooting, the youngest twigs scurfy. Leaves orbicular, or very broadly ovate, strongly pinnately veined, short-acuminate or acute at the apex, usually cordate at the base, finely stellate-pubescent, or at length glabrous above, scurfy with stellate pubescence on the veins beneath, finely serrate all around, 3'-8' broad; petioles 1/2'-11/2' long; cymes sessile, 3'-5' broad, the exterior flowers usually radiant and neutral, about 1' broad; drupes red, becoming purple, ovoid-oblong, 5"-6" long; stone 3-grooved on one side, 1-grooved on the other.
In low woods, New Brunswick to North Carolina, Ontario, Tennessee and Michigan. Leaves of shoots from cut stumps thin, ovate, corsely toothed. May-June. Tangle-legs or -foot. Dogwood. Dogberry. Trip-toe. Witch-hopple or -hobble. Winter-buds naked.