Net-veined sugarberry
Celtis laevigata var. reticulata
A rugged deciduous tree known as the netleaf hackberry, featuring heavily veined leaves and warty …
Anomalous sugarberry (Celtis laevigata var. anomala)
Silhouette: T. Michael Keesey
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Celtis laevigata var. anomala: Taxonomy and Characteristics
Recognized for its unique morphological traits, Celtis laevigata var. anomala is a naturally occurring variant of the common sugarberry tree. It occupies specific ecological niches within the native range of the broader species, contributing to the rich genetic diversity of the Cannabaceae family. Researchers study this specific variety to better understand the evolutionary adaptations and phenotypic variations within the hackberry lineage.
The classification of this taxon reflects the inherent taxonomic variability of the Celtis genus. Trees in this group frequently exhibit transitional forms and intergrade with sympatric species, making precise taxonomic delineation challenging. This variety demonstrates how environmental pressures and genetic isolation can produce distinct botanical forms within a single, widespread woody species.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms
- ∟ eudicots
- ∟ Superrosids
- ∟ rosids
- ∟ order Rosales
- ∟ family Cannabaceae (Hemp family)
- ∟ genus Celtis (Hackberry)
- ∟ species Celtis laevigata (Smooth-leaved hackberry)
- ∟ variety Celtis laevigata var. anomala (Anomalous sugarberry)
Morphology
Similar to the nominate species, Celtis laevigata var. anomala grows as a deciduous tree with a branching, spreading canopy. The bark typically develops the corky excrescences and ridges that are a characteristic feature of the genus, aiding in winter identification. The root system is generally extensive, allowing the tree to survive in soils with fluctuating moisture levels.
The leaves are simple, alternate, and generally ovate to lanceolate, featuring the distinctively asymmetrical base typical of most hackberries. The varietal name 'anomala' points to atypical or irregular features in its foliage or growth habit when compared directly to the standard Celtis laevigata. It produces small, apetalous flowers that yield globose drupes, which ripen to a reddish or dark purple hue in late summer or early autumn.
Flowering season
Spring
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Name
Dec
Applications
Ecologically, the tree acts as a crucial resource for regional wildlife in its native habitats. The canopy provides shade and shelter, while the fruit crops are heavily utilized by frugivorous birds and mammals during the autumn months to build fat reserves. The wood is structurally similar to elm and may be used locally for basic construction or firewood, though it has limited commercial timber value.
Interesting facts
- The scientific varietal name anomala translates from Latin as 'anomalous' or 'irregular', indicating that early botanists found its characteristics to deviate noticeably from the expected traits of the type species.
- Species within the Celtis genus, including this variety, were formerly placed in the elm family (Ulmaceae) before advanced genetic sequencing confirmed their closer evolutionary relationship to hemp and hops in Cannabaceae.
Geography of distribution
- United States
- Mexico
Sources
- Plants of the World Online (POWO)
- Tropicos
- Global Biodiversity Information Facility (GBIF)
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