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Protocol Information

Morris J. Houck, Jr.
Natural Resources Conservation Service- James E. "Bud" Smith Plant Materials Center
3776 Farm Road 1292
Knox City, Texas 79529-2514
(940) 658-3922
(940) 658-3047

Family Scientific Name: Poaceae
Family Common Name: Grass Family
Scientific Name: Leptochloa dubia (H.B.K.) Nees
Common Name: Green sprangletop
Species Code: LEDU
Ecotype: Ross Maxwell Scenic Drive
General Distribution: Rocky hills and canyons and sandy soil, southern Florida; Oklahoma and Texas to Arizona, south through Mexico; Argentina.
Propagation Goal: Plants
Propagation Method: Seed
Product Type: Bareroot (field grown)
Target Specifications: Stock Type: Field production.
Height: 4 ft.
Caliper: N/A.
Root System: Tufted perennial.
Propagule Collection: Collected in NRCS James E. ‘Bud’ Smith Plant Materials Center, Knox City, Texas by Ray Cragar and Lynn Pace on 11/07/1990.
Propagule Processing: Seed Processing: Seed harvested with direct combine. Seed cleaned with shaker air-screen separation, at the NRCS PMC.
Seeds/Kg: N/A.
Germination: 79%.
Purity: 93%.
Pre-Planting Treatments: N/A.
Growing Area Preparation/
Annual Practices for Perennial Crops:

Propagation Environment: Field production planting.
Seed Propagation Method: Direct seeding on listed beds, irrigation, cultivation and fertilization.
Establishment Phase: Sowing Date: Late winter and early spring.
% Emergence and Date: 90% emergence within several weeks of irrigation.
Sowing/Planting Technique: Direct seeding with grass drill.
Establishment Phase: N/A.
Active Growth Phase: N/A.
Hardening Phase: N/A.
Harvesting, Storage and Shipping: Harvest Date: summer to late fall.
Total Time To Harvest: June-November.
Storage Conditions: Temperature regulated seed storage at 50º Fahrenheit/50% Humidity.
Length of Storage: Storage Duration: 7 months.
Outplanting performance on typical sites: Outplanting Site: Big Bend National Park, Brewster Co., Texas.
Outplanting Date: Late winter and early spring.
References: North American Range Plants, 115; Manual of the Vascular Plants of Texas, 234; Manual of the Grasses of the United States, 491; The Grasses of Texas, 226; NRCS James E. ‘Bud’ Smith Plant Materials Center, Knox City, Texas, Plant Collection Information, PM-580.

Esquivel, Rudy G. 2001. Propagation protocol for production of field-grown Leptochloa dubia (H.B.K.) Nees plants; Natural Resources Conservation Service- James E. "Bud" Smith Plant Materials Center, Knox City, Texas. In: Native Plant Network. URL: http://www.nativeplantnetwork.org (accessed 28 August 2015). Moscow (ID): University of Idaho, College of Natural Resources, Forest Research Nursery.