Robert J. Northrop

Is my tree safe? Recognizing Conditions that Increase the Likelihood of Tree Failure

Drew C. McLean, Andrew Koeser, Robert J. Northrop, yGitta Hasing
Otros contactos: Ryan Klein

City of Tampa Urban Ecological Analysis

Michael G. Andreu, Melissa H. Friedman, Shawn M. Landry, and Robert J. Northrop

This document is FOR203, one of a series of the School of Forest Resources and Conservation Department, UF/IFAS Extension, University of Florida. Original publication date December 2008. Revised January 2011.

Environmental Services Provided by Tampa’s Urban Forest

Michael G. Andreu, Melissa H. Friedman, and Rob J. Northrop

FOR-204, a 5-page illustrated fact sheet by Michael G. Andreu, Melissa H. Friedman, and Rob J. Northrop, provides a brief overview and results from an urban ecological assessment conducted in the city of Tampa from February to July 2007. Includes references. Published by the UF School of Forest Resources and Conservation, January 2009.

Important Species in Tampa's Urban Forest

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

FOR-205, a 4-page illustrated fact sheet by Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop, presents the information gained about tree species results from an urban ecological assessment conducted in the city of Tampa, including native vs. non-native and invasive tree species, palms and palm diseases, and mangrove forests. Includes references. Published by the UF School of Forest Resources and Conservation, February 2009.

Comparison of Community Leader Perceptions on Urban Forests in Florida

Francisco Escobedo, Robert Northrop, Michael Orfanedes, and Anna Iaconna

A UF/IFAS numbered Fact Sheet.

Phoenix sylvestris, Wild Date Palm

Robert J. Northrop, Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, and Heather V. Quintana

A UF/IFAS numbered Organism ID.

Cycas revoluta, Sago Palm

Robert J. Northrop, Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, and Heather V. Quintana

A UF/IFAS numbered Organism ID.

Crataegus marshallii, Parsley Hawthorn

Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, Heather V. Quintana, and Robert Northrop

A UF/IFAS numbered Organism ID.

Fraxinus caroliniana, Pop Ash

Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, Heather V. Quintana, and Robert Northrop

A UF/IFAS numbered Organism ID.

Duranta erecta, Golden Dewdrop

Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, Heather V. Quintana, and Robert J. Northrop

A UF/IFAS numbered Organism ID.

Ficus citrifolia, Shortleaf Fig

Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, Heather V. Quintana, and Robert J. Northrop

A UF/IFAS numbered Organism ID.

Carya aquatica, Water Hickory

Michael G. Andreu, Melissa H. Friedman, Mary McKenzie, Heather V. Quintana, and Robert J. Northrop

A UF/IFAS numbered Organism ID.

Cassia leptophylla, Gold Medallion Tree

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

The gold medallion tree is planted primarily as a shade tree or as a decorative specimen for the yard or street. Many people like this tree because of its fast growth rate and showy, bright yellow clusters of flowers that bloom in the summer months. This tree loses its leaves for a very short period each year, but leaves are quickly replaced. Pruning the tree to one main leading stem from which major branches are attached can help increase its strength and sturdiness against strong wind events.

Cassia afrofistula, Kenyan Cassia

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

The Kenyan cassia can be used as a showy ornamental tree or shrub, with its dark foliage and bright yellow flowers. Some people find the seed pods to be unattractive and prune the tree after it flowers to prevent pods from developing. This tree tolerates a wide range of soil types and can be used in a garden, park, patio, or streetscape setting.

Cassia javanica, Pink and White Shower

Michael G. Andreu, Melissa H. Friedman, yRobert J. Northrop

A UF/IFAS numbered publication.

Casuarina equisetifolia, Australian Pine

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

Australian pine was originally planted in Florida in the late 1800's as a windbreak and for shade. But soon thereafter it was spreading without help from humans. Today it is considered a category I invasive species in Florida, and the Division of Plant Industry strictly prohibits possessing, transporting, and cultivating this species.

Leucaena leucocephala, White Leadtree

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

In Florida, white leadtree is a prohibited species and therefore is not used in commercial applications in the state. However, in its native range it is used as a source of charcoal, fuel, and lumber. It has also been planted as a windbreak for crops such as coffee and cocoa, and some ranchers use the tree as a source of both shade and forage for cattle, with the pods being an excellent source of protein.

Fortunella spp., Kumquat

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

Many people find kumquat trees attractive and useful yard specimens. Their dark green leaves and contrasting bright orange fruits give them ornamental quality, and their relatively small size makes them easy to care for once they’re established. Because kumquats generally require less care than other citrus trees, they may be a good choice for gardeners with less time or experience, but who still desire an attractive and tasty citrus tree. If space is an issue, kumquats also do well in containers as long as they receive proper sunlight and watering.

Gleditsia aquatica, Water Locust

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

Water locust’s wide, spreading root system and affinity for hydric conditions makes it a useful specimen for erosion control on wet banks of freshwater systems. While not widely available, planting this tree in residential yards or other public locations may be less than ideal, since the long and sharply pointed thorns on the main trunk and branches can be hazardous. This deciduous tree is native to Florida.

Tabebuia serratifolia, Yellow Trumpet Tree

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

This deciduous tree is native to South and Central America and is commonly planted in Florida as an ornamental landscape and shade tree. It has attractive, bright yellow blossoms produced in the absence of leaves. Once established, this tree is drought tolerant, making it easier to care for and less demanding on water resources. Yellow trumpet tree also has a relatively high tolerance to salt spray, and therefore is an appropriate street tree or yard specimen in coastal areas. This 2-page fact sheet was written by Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop, and published by the UF Department of School of Forest Resources and Conservation, July 2012.

Enterolobium cyclocarpum, Ear Tree

Michael G. Andreu, Melissa H. Friedman, and Robert J. Northrop

This document provides an overview of the Enterolobium cyclocarpum, commonly known as the ear tree. Native to Mexico, Central America, and northern South America, this deciduous tree thrives in various soil types and warm, moist climates. It features light green, bipinnately compound leaves, and produces distinctive semicircular seedpods resembling ears. The ear tree is valued for its shade, especially on coffee plantations and cattle ranches, and its heartwood is used in furniture making due to its resistance to fungus and termites. However, it is susceptible to limb breakage during storms and is not tolerant of salty conditions. Original publication date July 2012.

The Structure and Composition of Gainesville's Urban Forest in 2016

Michael G. Andreu, Caroline A. Hament, David A. Fox, and Robert J. Northrop

A UF/IFAS numbered peer reviewed Fact Sheet. in support of UF/IFAS Extension program: Natural resources operations and Invasive Species

Values and Ecosystem Services of Gainesville's Urban Forest in 2016

Michael G. Andreu, Caroline A. Hament, David A. Fox, and Robert J. Northrop

Urban Forest Management: A Primer to Strategic Planning for Municipal Governments—an Introduction

Michael Andreu, Robert Northrop, and Wayne Zipperer

This publication is an introduction to Urban Forest Management: A Primer to Strategic Planning for Municipal Governments, available in full for free here: https://ffgs.ifas.ufl.edu/urbanforestmanagementbook/