1Up Info - A Portal with a Difference

1Up Travel - A Travel Portal with a Difference.    
1Up Info

Earth & Environment History Literature & Arts Health & Medicine People Places Plants & Animals  Philosophy & Religion   Science & Technology Social Science & Law Sports & Everyday Life Wildlife, Animals, & Plants Country Study Encyclopedia A -Z
North America Gazetteer

You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Graminoid > Species: Echinochloa crus-galli | Barnyard Grass

Wildlife, Animals, and Plants


Wildlife, Animals, and Plants


Wildlife Species











  Fern or Fern Ally








SPECIES: Echinochloa crus-galli | Barnyard Grass
GENERAL BOTANICAL CHARACTERISTICS : Barnyard grass is an introduced, nonrhizomatous, warm-season annual. Stems may be solitary or in small tufts, erect or reclining at the base, up to 6.6 feet tall (2 m) [16,28,39,52,80]. Leaves are flat, 4 to 12 inches (10-30 cm) long and 0.2 to 0.6 (5-15 mm) inch wide [18,19,27,46]. The panicle is 2 to 8.4 inches (5-21 cm) long, upright or nodding [19,46,68]. Barnyard grass has a fibrous root system [39,49]. RAUNKIAER LIFE FORM : Therophyte REGENERATION PROCESSES : Barnyard grass reproduces by seed. It is self-pollinating [51] and a prolific seed producer [28,44,68]. A healthy plant can produce from 750,000 to one million seeds [44]. Barnyard grass seed is water dispersed [1]. Seed viability in soil is variable [10,44]. In Stoneville, Mississippi, in 1972, a 50-year study on longevity of buried seed of barnyard grass was initiated. Seed viability was 1 percent after burial for 2.5 years; less than 6 percent of seed survived 6 months or longer [10]. However, according to Dawson [8], barnyard grass seed may be viable in the soil for up to 13 years. In another study by Mitich [44], seed viability of barnyard grass was 100 percent after 6 to 8 years of dry storage in irrigated sandy loam soil, and all seed was nonviable after 15 years. Watanabe [79] found that barnyard grass seed germination rate was 27 percent after burial for 6 months and 3 percent after burial for 6.5 years. Barnyard grass seed germinates over a wide temperature range, 55 to 104 degrees Fahrenheit (13-40 deg C), with optimum germination occurring from 68 to 86 degrees Fahrenheit (20-30 deg C) [53,62]. The buoyancy and hence dispersal by water of barnyard grass seeds is probably influenced by their weight. A survey of seed weight [1] demonstrated that seeds of E. crus-galli var. oryzicola were on the average 2 to 3 times heavier than those of E. crus-galli var. crus-galli. The lighter seeds of E. crus-galli var. crus-galli exhibited greater buoyancy, with approximately 50 percent of seeds remaining afloat after 4 to 5 days in water. In contrast, 95 percent of E. crus-galli var. oryzicola seeds had sunk after 5 days. Decay of dormancy in E. crus-galli var. oryzicola is more rapid than in E. crus-galli var. crus-galli following dry storage and burial in soil. SITE CHARACTERISTICS : Barnyard grass is widespread in fields, waste places, ditches, marshes, wet meadows, floodplains and along lakeshores and streambanks [18,20,33,38,39]. It is locally common in floodplains, riverbottoms, and seasonally wet habitats [1,63,80], but also occurs in drier habitats [24]. Barnyard grass is most often found on disturbed, generally nonsaline soils [25,53,63], but grows on a variety of soil types [38,53]. Echinochloa crus-galli var. crus-galli is generally absent from sites that have greater than 12 inches (30 cm) of standing water for more than 4 weeks at a time [42,63]. It occurs in shallow water or after drawdown [63]. Barnyard grass tolerates poor drainage and flooding, but not severe drought [7,31,44,60]. In California, the two varieties of barnyard grass differ in habitat preference and colonizing ability. Echinochloa crus-galli var. crus-galli is a cosmopolitan weed of wet, disturbed ground and occurs in shallow water around the periphery of rice fields. Echinochloa crus-galli var. oryzicola is a crop mimic that is found primarily in permanently flooded cultivated rice fields [1]. Elevations of barnyard grass are as follows: feet meters Arizona 150-7,000 45-2,100 [27] California <4,950 <1,500 [20] Colorado 4,500-7,500 1,350-2,250 [19] Kansas 3,370-4,675 1,021-1,417 [38] Montana 2,800-3,300 840-1,000 [86] South Dakota 1,940-2,025 587- 614 [71] Texas 7,400 2,320 [21] Utah 2,705-7,045 820-2,135 [80] Wyoming 3,700-5,100 1,110-1,530 [86] SUCCESSIONAL STATUS : Barnyard grass is a pioneer species that readily invades disturbed sites [63,68]. It is found most often in open, unshaded areas [25,44], and is intolerant of dense shade [44]. Barnyard grass invades South Dakota rangelands and rapidly colonizes overflow and subirrigated range sites that have been denuded or disturbed in Nebraska [37,68]. In Idaho, barnyard grass is an increaser species on periodically flooded sites along streams [58]. At a restoration prairie site in Ohio, barnyard grass established at the edge of an ephemeral pond that is subject to periodic flooding and drying [7]. In an old-field succession deciduous forest in southwestern Ohio, barnyard grass was found growing in a 2-year-old stand, but was not present in stands 10, 50, 90, or 200 years old [56,74]. SEASONAL DEVELOPMENT : Barnyard grass flowering dates for several states are as follows: Arizona July-Sept [27] California July-Oct [46] Colorado Aug-Sept [86] Florida all year [84] Illinois Aug-Oct [45] Montana June-Oct [86] Nebraska Aug-Sept [61] North Carolina July-Oct [52] North Dakota July 15 [65] South Carolina July-Oct [52] West Virginia Aug-Oct [67] Wyoming Aug-Oct [86] Great Plains June-Sept [16]

Related categories for Species: Echinochloa crus-galli | Barnyard Grass

Send this page to a friend
Print this Page

Content on this web site is provided for informational purposes only. We accept no responsibility for any loss, injury or inconvenience sustained by any person resulting from information published on this site. We encourage you to verify any critical information with the relevant authorities.

Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

About Us | Contact Us | Terms of Use | Privacy | Links Directory
Link to 1Up Info | Add 1Up Info Search to your site

1Up Info All Rights reserved. Site best viewed in 800 x 600 resolution.