Texas Tree Trails

A  Geographic Guide To Texas' Significant Trees

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Our Mission is to find and catalog each of these treasures in order to preserve their integrity for future generations - before they all disappear.
 
 Associates


Texas Forest Service

Texas Historic Tree Coalition

Trinity Blacklands Urban Forestry Council

Cross Timbers Urban Forestry Council

 



 
The Texas Tree Trails organization is a cooperative effort of the Texas Forest Service, the Texas Historic Tree Coalition, the Trinity Blacklands Urban Forestry Council and the Cross Timbers Urban Forestry Council, among others.


 Tree ID Web Sites

Leafsnap, an on-line pictorial database of tree identification by species.

DFT Vascular Plant Image Library (Ulmaceae)

Dendrology at Virginia Tech

Plants USDA - Topics

Plants Database: Home

Texas Native Plants Database

The International Plant Names Index

Tree ID - The National Arbor Day

Tree Species Distribution Maps for North America [.pdf and .arcinfo files]

Vascular Plants - A virtual herbarium; A project of the N.Y. Botanical Gardens

Silvics of North America: Hardwoods  Conifers

Our State Tree

Our State TreePecan (Juglandaceae Carya illinoinensis ) Adopted in 1919. The pecan is a large tree native to North America. It bears sweet edible nuts, deep brown in color, that range from 1 to 2 inches in length.

The mature pecan tree is usually 70 to 100 feet tall, as many are in local parks, but can grow as tall as 150 feet and higher in the open field. The native pecan trees shown in our database are estimated to be over 150 years old. Their trunks can grow to more than three feet in diameter!

Texas is the largest producer of native pecans, and is second only to Georgia in the production of hybrid (orchard grown) varieties. The pecan became the Texas state tree by act of the Texas Legislature in 1919. Governor James Hogg favored the tree so much that he requested that one be planted at his gravesite.

Chapter 97 (Senate Bill No. 317), 36th Legislature, Regular Session (1919) p. 234 Pecan (Carya illinoensis) is one of the better-known pecan-hickories. It is also called sweet pecan and in its range where Spanish is spoken, nogal morado or nuez encarcelada. The early settlers who came to America found the pecan growing over wide areas. These native pecans were and continue to be highly valued as sources of new varieties and as stock for selected clones. Besides the commercial edible nut that it produces, the pecan provides food for many varieties of wildlife. Pecans are an excellent multipurpose tree for the home landscape by providing a source of nuts, furniture-grade wood and landscaping esthetic value.

See the link for Glossary in the footer.

Leaf: Alternate, pinnately compound with 9 to 15 finely serrate and often curved leaflets, 12 to 18 inches long.

Flower: Male flowers in hanging, yellow-green catkins, often in pairs of three (4 to 5 inches long). Females are small and yellowish green, 4-angled.

Fruit: Large, oblong, brown, splotched with black, thin shelled nuts, 1 to 2 inches long, husks are thin, usually occur in clusters on trees. Mature in September and October.

Twig: Moderately stout, light brown, fuzzy particularly, when young; leaf scars large and three lobed; buds are yellowish brown to brown, hairy, terminal buds to inch long.

Bark: Smooth when young, becoming narrowly fissured into thin broken strips, often scaly.

Form: A large tree (can reach heights well over 100 feet) with spreading crown when in the open.

Pecan Taxonomic Hierarchy

Kingdom Plantae -- Plants
Subkingdom Tracheobionta -- Vascular plants
Superdivision Spermatophyta -- Seed plants
Division Magnoliophyta -- Flowering plants
Class Magnoliopsida -- Dicotyledons
Subclass Hamamelidae Order Juglandales Family Juglandaceae Walnut family
Genus Carya Nutt. hickory
Species Carya illinoinensis (Wangenh.) K. Koch pecan

Source: Dendrology at Virginia Tech U.S. Department of Agriculture

 

 

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