Brooklyn Botanic Garden

Viburnum acerifolium

Viburnum

by Steven D. Glenn
Not peer reviewed
Last modified: 01/25/2013

Nomenclature

Viburnum L., Sp. Pl. 267. 1753, nom. cons. des. LECTOTYPE: V. lantana L. (see Hitchc. & Green, Int. Bot. Congr. Cambridge. 1930) or V. tinus (see Britton & A.Br., Ill. Fl. N.U.S. ed. 2. 2: 494. 1913)

Tinus Mill., Gard. Dict. abr. ed. 4, 3. 1754. TYPE: not designated.

Oreinotinus Oerst., Vidensk. Meddel. Dansk Naturhist Foren. Kjøbenhavn 12: 281, t. 6, fig. 11-25. 1860 [1861?]. TYPE: not designated.

Key to the species of Viburnum

1. Leaves with lobes...2.
1. Leaves without lobes, margins toothed or entire...3.

2. Leaves with stellate pubescence and red-brown glands on underside...Viburnum acerifolium.
2. Leaves with a few straight hairs and lacking red-brown glands on underside...Viburnum opulus.

3. Leaf teeth outer margins 1.5 mm or less in length or margins entire...4.
3. Leaf teeth outer margins 2 mm or more in length...11.

4. Leaf margins entire...Viburnum nudum.
4. Leaf margins with teeth or wavy...5.

5. Leaf teeth widely spaced, 2 or fewer per cm...Viburnum setigerum.
5. Leaf teeth closely spaced, 3 or more per cm...6.

6. Leaf undersides and petioles glabrous...7
6. Leaf undersides and petioles with stellate hairs...9.

7. Leaf teeth with rounded apices...Viburnum nudum.
7. Leaf teeth with sharp, pointed apices...8.

8. Petioles with bumpy, wavy margins; leaf apices acuminate; leaves light green...Viburnum lentago.
8. Petioles without bumpy, wavy margins; leaf apices acute; leaves dark green...Viburnum prunifolium.

9. Leaf undersides with clear (sometimes red-brown), shiny glands...Viburnum dilatatum.
9. Leaf undersides without glands...10.

10. Leaves mostly greater than 7 cm wide...Viburnum lantanoides (V. alnifolium) .
10. Leaves mostly less than 7 cm wide...Viburnum lantana.

11. Leaf undersides and petiole glabrous (or with a few straight hairs)...Viburnum dentatum var. lucidum.
11. Leaf undersides and petiole with stellate hairs...12.

12. Leaf bases long-cuneate; leaf margins lacking teeth on lower 1/4 to 1/3 of blade; crushed leaf with disagreeable odor (diesel fuel x with a bell pepper?)...Viburnum sieboldii.
12. Leaf bases rounded-acute; teeth extending to base of blade; crushed leaves lacking strong odor...13.

13. Petioles 8mm or less in length; linear stipules persistent...Viburnum rafinesquianum.
13. Petioles 9 mm or more in length; stipules absent...14.

14. Stellate hairs on petiole and only main veins of leaf underside...Viburnum dentatum var. dentatum.
14. Stellate hairs on petiole and throughout leaf underside...15.

15. Stellate hairs thin, clear; leaf apices usually abruptly acuminate...Viburnum plicatum.
15. Stellate hairs stout, red-brown; leaf apices usually acute...Viburnum dentatum var. venosum.

List of Viburnum Species

References

References to Viburnum

Other Links

Viburnum - USDA PLANTS

Viburnum -  NY Flora Atlas

Viburnum - Biota of North America

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