Vascular Plants of North Carolina
Account for Rusty Blackhaw - Viburnum rufidulum   Rafinesque
Members of Viburnum with account distribution info or public map:
Google Images
Section 6 » Order Dipsacales » Family Adoxaceae
Show/Hide Synonym
AuthorRafinesque
DistributionPresent over most of the Coastal Plain and Piedmont, but scarce to absent at either end. It may genuinely be absent from some far eastern counties, and from Piedmont foothill counties, at least in the northwestern Piedmont. There are only a few mountain records.

This is a mostly Southern species than ranges north only to MD, southern OH, and KS south to the Gulf Coast.
AbundanceFairly common in most of the Piedmont, but seldom really common. Infrequent to fairly common in the Coastal Plain, except rare in the far eastern counties. Very rare in the mountains, at low elevations. Unlike some other Viburnum species such as V. rafinesqueanum and V. acerifolium, observers typically only see a few scattered individuals in a given forest stand, as opposed to sometimes hundreds of individuals.
HabitatThis Viburnum inhabits drier and poorer soil than most others, especially in the Piedmont and Coastal Plain. It favors dry oak-hickory forest, mixed pine-oak forests, hardpan forests, and various rocky forests. It favors circumneutral soils as opposed to strongly acidic sites, as does V. prunifolium. However, the latter species favors moist to rich soils as opposed to poorer soil for V. rufidulum; however, both species can be seen in the same woodland.
PhenologyBlooms from late March to April; fruits in September to October.
IdentificationThis is a fairly large deciduous shrub to rarely a small tree, typically growing to about 12-15’ tall. It has leaves rather similar to those of V. prunifolium – opposite, widely elliptic to about 2-2.5” long, and finely serrate on the margins. However, this species has thicker leaves that are clearly shiny above; also, the leaves are somewhat rusty-dotted below. Its inflorescence is the standard Viburnum one of a gently rounded cluster of small white flowers.
Taxonomic CommentsNone

Other Common Name(s)Southern Blackhaw, Rusty Nannyberry, Blue Haw
State RankS5
Global RankG5
State Status
US Status
County Map - click on a county to view source of record.
Select a source
AllHerbaria
Individual
Website
Select an occurrence type
AllCollection_naturalSight_natural