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Echinochloa crus-galli

Echinochloa crus-galli (L.) P. Beauv.

Echinochloa crus-galli (L.) P. Beauv. ssp. spiralis (Vasinger) Tzvelev

Panicum crus-galli L.

Barnyard Grass

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassLiliopsidaMonocots (plants with a single seed leaf); includes the lily family
SubclassCommelinidaeDayflowers and spiderworts, and several others
OrderCyperalesFlowering plants including grasses
FamilyPoaceaeGrasses (but not sedges or rushes)
GenusEchinochloaFrom the Greek echinos for “hedgehog” or “sea-urchin,” and chloe or chloa, “grass,” referring to the spikelets which are bristly
Speciescrus-galliFrom the Latin crus, “the leg or thigh,” and gallus, “a cock,” this specific epithet is supposed to mean “cock’s spur”

About plant names...

Barnyard grass occurs in tropical Asia and Africa, and Europe. First spotted in the Great Lakes region in the United States, it is found in moist areas throughout North America. It most areas it is considered an invasive species, because it absorbs up to 80% of the nitrogen that would otherwise grow forage crops. It absorbs so much nitrogen that it can poison livestock.

Identification: Culms (stems) are erect, up to 3' (1 m) or rarely 5' (1.5 m) high, or sometimes decumbent, lying flat. The grass may branch near the base. The grass blades are smooth and hairless, green sometimes tinged with purple, ⅛-½" (5-15 mm) wide, 4-8" (10-20 cm) long. The flowerheads, or panicles, are a group of racemes, each crowded with spikelets. Each spikelet is about ⅛" (3 mm) long, and each raceme about 4" (10 cm). The racemes are arranged around the stem rather like boughs of a Christmas tree, longer and further apart near the bottom. They may be green ranging to deep purple.

Online References:

Echinochloa crus-galli on Missouriplants.com

Echinochloa crus-galli on Wikipedia

Echinochloa crus-galli on the Virginia Tech Weed Identification Guide

Echinochloa crus-galli at Purdue University's Center for New Crops and Plants Products

Echinochloa crus-galli on Plants for a Future, a resource and information centre for edible and otherwise useful plants

Echinochloa crus-galli at the United States Geographical Society's Nonindigenous Aquatic Species site

Echinochloa crus-galli on the USDA Forest Service's Fire Effects Information Database

References:

Hitchcock, Albert Spear; revised by Chase, Agnes, Manual of the Grasses of the United States, Volume 1, Dover Books, 1971, p. 712

Echinochloa crus-galli (Barnyard Grass)

8/15/2013 · Groton Place and Sabine Woods, Groton, MA
≈ 7 × 6" (18 × 15 cm)

Echinochloa crus-galli (Barnyard Grass)

9/18/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 8 × 5" (19 × 13 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/5/2010 · Nashua River Rail Trail, near Nashoba Hospital, Ayer, MA
≈ 7 × 11" (18 × 27 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/3/2009 · Nashua River Rail Trail, Ayer, MA
≈ 7 × 11" (18 × 27 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/11/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 14 × 9" (35 × 23 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/3/2009 · Nashua River Rail Trail, Ayer, MA
≈ 4½ × 5" (11 × 13 cm) ID is uncertain

Echinochloa crus-galli description by Thomas H. Kent, last updated 16 Aug 2013.

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Echinochloa crus-galli (Barnyard Grass)

8/15/2013 · Groton Place and Sabine Woods, Groton, MA
≈ 10 × 7" (25 × 16 cm)

Echinochloa crus-galli (Barnyard Grass)

9/5/2010 · Nashua River Rail Trail, near Nashoba Hospital, Ayer, MA
≈ 8 × 12" (20 × 31 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/18/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 8 × 5" (19 × 13 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/11/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 17 × 12" (44 × 29 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/3/2009 · Nashua River Rail Trail, Ayer, MA
≈ 12 × 17" (29 × 44 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

8/18/2010 · J. Harry Rich Woods, off Nod Rd., Groton, MA
≈ 4½ × 7" (11 × 17 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/11/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 8 × 7" (20 × 18 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

8/18/2010 · J. Harry Rich Woods, off Nod Rd., Groton, MA
≈ 8 × 12" (20 × 31 cm) ID is uncertain

Echinochloa crus-galli (Barnyard Grass)

9/11/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 11 × 7" (27 × 18 cm) ID is uncertain

Range:

About this map...