Native Plants
Plant Database
Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Carya illinoinensis
Carya illinoinensis (Wangenh.) K. Koch
Pecan
Juglandaceae (Walnut Family)
Synonym(s): Carya oliviformis, Carya pecan, Hicoria pecan
USDA Symbol: CAIL2
USDA Native Status: L48 (N)
The largest of the hickories, pecan typically grows 70-100 ft. and can reach 160 ft. It is massive-trunked, with stout branches supporting a symmetrical, oval crown. Slate gray bark remains smooth for years. Pinnately-compound, deciduous leaves are 12-20 in. long with 11-17 leaflets. Midrib of the leaflet off center with the wider part of the blade toward the leaf tip. Flowers inconspicuous, male in elongate clusters, both sexes on same tree. Fruit an oblong nut enclosed in a thin husk splitting open at maturity, husk often persistent on the tree for weeks after the nut has fallen.
Pecan is one of the most valuable cultivated plants originating in North America. Improved varieties with large, thin-shelled nuts are grown in plantations or orchards in the Southeast; pecans are also harvested locally from wild trees. The wood is used for furniture, flooring, veneer, and charcoal for smoking meats. The word pecan is of Algonquin origin. The Latin species name is from an old term, "Illinois nuts," and refers to the region where traders found wild trees and nuts. Native Americans may have extended the range by planting. This tree of the Mississippi valley was unknown to British colonists on the Atlantic coast. Thomas Jefferson planted seeds at Monticello and gave some to George Washington; now these Pecans are the oldest trees in Mount Vernon.
Plant Characteristics
Duration: PerennialHabit: Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Pinnate
Leaf Shape: Lanceolate
Leaf Venation: Pinnate
Breeding System: Flowers Unisexual , Monoecious
Fruit Type: Nut
Size Notes: Up to about 160 feet.
Leaf: Yellow-Green
Bloom Information
Bloom Color: YellowBloom Time: Mar , Apr , May
Distribution
USA: AL , AR , FL , GA , IA , IL , IN , KS , KY , LA , MD , MO , MS , NC , OH , OK , SC , TN , TX , VANative Distribution: AL to TX, n. to OH, s.e. IN, IL, s.e. IA & s.e. KS
Native Habitat: Wooded bottomlands; stream banks
Growing Conditions
Water Use: HighLight Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: Low
Cold Tolerant: yes
Soil Description: Rich, moist, well-drained soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Caliche type
Conditions Comments: The sweet, edible nut, makes pecan the best hickory for fruit production. The tree does not bear liberal quantities of fruit in the northern part of its range, but makes an interesting ornamental there. Susceptible to galls, twig girdlers, aphids, borers, weevils, pecan scab, tent caterpillars, and webworms. Slow-growing. Difficult to transplant because of a large taproot.
Benefit
Use Ornamental: Excellent nut and shade tree, fall conspicuous.Use Wildlife: Fruit mammals and birds, Substrate-insectivorous birds.
Use Food: Fruits-nutrition
Use Other: Furniture, veneer for wood paneling, charcoal.
Interesting Foliage: yes
Attracts: Butterflies
Larval Host: Gray hairstreak butterfly
Butterflies and Moths of North America (BAMONA)
Gray Hairstreak (Strymon melinus) Larval Host |
Propagation
Propagation Material: SeedsSeed Collection: Collect nuts from September to November. Husks usually dry and split open by themselves when the nuts are mature. Persistent husks can be removed with a corn sheller.
Commercially Avail: yes
Maintenance: Remove dead growth, Prune to maintain strong branching, Prevent complete soil dryness, Maintain mulch layer, Fertilize 3 times a year with lawn fertilizer 3:1:2 ratio, Spray, as required, to control insects & desease, Highly alkaline soils may require zinc spr
Find Seed or Plants
View propagation protocol from Native Plants Network.
Mr. Smarty Plants says
Edible Plants for North Georgia
January 10, 2010
We are planning a forest food garden in the hollers of the N GA Mountains.
Which edible fruit, nut, berry, herb and creepers would be best for this reddish, clay-like soil? The food garden is in...
view the full question and answer
Edible plants native to Austin, TX
August 05, 2009
Hello,
I am a chef from Buenos Aires Argentina visiting Austin, Texas and would like to learn about native, edible plants in the region.
Please let me know if there are any native, edible plants...
view the full question and answer
Trees that are non-toxic for horses
May 02, 2008
I live in Ponder, Tx. We have some acreage and horses and wish to plant trees to afford some shade for the horses. Can you tell me what trees are toxic to horses.
view the full question and answer
Native trees for cemetery plot in Karnes County, TX
April 08, 2007
I'm looking for a tree for a cemetery plot in Karnes County at Pana Maria. There will be someone to regularly water it. I understand live oak and pecan are native to the area. I assume these would...
view the full question and answer
Invasive, non-native Paulownia
May 03, 2006
Hi. We would like to plant a fast growing tree that will provide shade for our house. What do you think of the Paulownia tree (Empress Tree) as a possibility for the Austin area? If this is not a g...
view the full question and answer
National Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | FACU | FAC | FACU | FAC | FACW | FACW | FAC |
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:Lady Bird Johnson Wildflower Center - Austin, TX
Brackenridge Field Laboratory - Austin, TX
Nueces River Authority - Uvalde, TX
Texas Parks and Wildlife Department - Austin, TX
NPSOT - Fredericksburg Chapter - Fredericksburg, TX
NPSOT - Austin Chapter - Austin, TX
Jacob's Well Natural Area - Wimberley, TX
NPSOT - Williamson County Chapter - Georgetown, TX
Herbarium Specimen(s)
NPSOT 0374 Collected Apr 28, 1987 in Bexar County by Harry CliffeNPSOT 0448 Collected Jun 5, 1987 in Bexar County by Harry Cliffe
Bibliography
Bibref 298 - Field Guide to Texas Trees (1999) Simpson, B.J.Bibref 355 - Landscaping with Native Plants of Texas and the Southwest (1991) Miller, G. O.
Bibref 354 - Native & Naturalized Woody Plants of Austin & the Hill Country (1981) Lynch, D.
Bibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 291 - Texas Wildscapes: Gardening for Wildlife (1999) Damude, N. & K.C. Bender
Bibref 297 - Trees of Central Texas (1984) Vines, Robert A.
Search More Titles in Bibliography
From the Archive
Wildflower Newsletter 1993 VOL. 10, NO.6 - Saving Trees and Plants at New Center Site a Big Job, Director's Report, Wildflo...Additional resources
USDA: Find Carya illinoinensis in USDA PlantsFNA: Find Carya illinoinensis in the Flora of North America (if available)
Google: Search Google for Carya illinoinensis
Metadata
Record Modified: 2015-11-13Research By: TWC Staff