Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Echinochloa crus-pavonis

Echinochloa crus var. crus-pavonis

guleaf barnyard-grass, gulf barnyard grass, gulf cockspur grass
Photo is of parent taxon
Habit Plants annual or short-lived perennials.
Culms

30-150 cm;

nodes glabrous.

Sheaths

glabrous, often purplish;

ligules absent;

blades 12-60 cm long, 10-25 mm wide, glabrous.

Panicles

10-30 cm, erect or drooping, nodes sparsely hispid, hairs papillose-based, internodes glabrous;

primary branches to 14 cm, nodes sometimes sparsely hispid, hairs papillose-based, internodes usually glabrous;

secondary branches to 3 cm.

Spikelets

2.5-3.4 mm long, 1.2-1.4 mm wide, disarticulating at maturity.

Caryopses

1.2-1.5 mm long, 1-1.3 mm wide;

embryos 50-70% as long as the caryopses.

Upper

glumes subequal to the spikelets;

lower florets sterile;

lower lemmas unawned or awned, awns 3-10(15) mm, curved;

lower paleas absent, vestigial, or well-developed;

upper lemmas narrowly elliptic, not or scarcely exceeding the upper glumes, acute or obtuse, with a well-differentiated, early-withering tip, glabrous or pubescent at the base of the tip, hairs not forming a line across the base;

anthers 0.5-0.7 mm.

2n

= 36.

Echinochloa crus-pavonis

Echinochloa crus var. crus-pavonis
Distribution
from FNA
AL; AR; AZ; CA; CO; FL; KS; LA; MD; MO; MS; NM; NV; OK; OR; TX; UT; PR
[WildflowerSearch map]
[BONAP county map]
Discussion

Echinochloa crus-pavonis is a native species found in scattered locations from British Columbia to Arizona, east to Florida, and south into South America. It favors marshes and wet places at lower elevations, often being found in the water.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Lower paleas more than 1/2 as long as the lemmas; panicles usually drooping
E. crus var. crus-pavonis
1. Lower paleas absent or much less than 1/2 as long as the lemmas; panicles usually stiffly erect
E. crus var. macera
Source FNA vol. 25, p. 398.
Parent taxa Poaceae > subfam. Panicoideae > tribe Paniceae > Echinochloa
Sibling taxa
E. colona, E. crus-galli, E. esculenta, E. frumentacea, E. muricata, E. oplismenoides, E. oryzicola, E. oryzoides, E. paludigena, E. polystachya, E. pyramidalis, E. walteri
Subordinate taxa
E. crus var. crus-pavonis, E. crus var. macera
Name authority unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers