Eragrostis ciliaris |
Eragrostis cilianensis |
|||||
---|---|---|---|---|---|---|
gophertail lovegrass |
stink grass, stinking lovegrass, éragrostide fétide |
|||||
Habit | Plants annual; tufted, without innovations, without glands. | Plants annual; tufted, without innovations. | ||||
Culms | (3)9-75 cm, erect or geniculate in the lower portion, not rooting at the lower nodes, glabrous. |
15-45(65) cm, erect or decumbent, sometimes with crateriform glands below the nodes. |
||||
Sheaths | hairy on the margins and at the apices, hairs to 4 mm; ligules 0.2-0.5 mm; blades 1.8-12(15) cm long, 2-5 mm wide, usually flat, occasionally involute, glabrous or ciliate basally. |
glabrous, occasionally glandular, apices hairy, hairs to 5 mm; ligules 0.4-0.8 mm, ciliate; blades (1)5-20 cm long, (1)3-5(10) mm wide, flat to involute, abaxial surfaces glabrous, sometimes glandular, adaxial surfaces scabridulous, occasionally also hairy. |
||||
Panicles | 1.7-15 cm long, 0.2-5 cm wide, cylindrical, contracted or open, branches usually forming glomerate lobes, sometimes more open, often interrupted in the lower portion; primary branches 0.4-4 cm, appressed or diverging to 50° from the rachises; pulvini usually glabrous, occasionally sparsely pilose; pedicels 0.1-1 mm, erect, shorter than the spikelets, glabrous. |
(3)5-16(20) cm long, 2-8.5 cm wide, oblong to ovate, condensed to open; primary branches 0.4-5 cm, appressed or diverging 20-80° from the rachises; pulvini glabrous or hairy; pedicels 0.2-3 mm, stout, straight, stiff, usually divergent, occasionally appressed. |
||||
Spikelets | 1.8-3.2 mm long, 1-2 mm wide, elliptical-ovate to ovate-lanceolate, yellowish-brown, sometimes with a purple tinge, with 6-11 florets; disarticulation basipetal, glumes peristent. |
6-20 mm long, 2-4 mm wide, ovate-lanceolate, plumbeous, greenish, with 10-40 florets; disarticulation below the florets, each floret falling as a unit, rachillas persistent. |
||||
Glumes | ovate to lanceolate, keels scabridulous, veins commonly green, apices acute; lower glumes 0.7-1.2 mm; upper glumes 1-1.6 mm; lemmas 0.8-1.3 mm, elliptical-ovate to lanceolate, membranous, keels scabridulous, lateral veins evident, apices obtuse to acute; paleas 0.8-1.3 mm, membranous, keels prominently ciliate, cilia 0.2-0.8 mm, apices obtuse to acute; anthers 2, 0.1-0.3 mm, purplish. |
broadly ovate to lanceolate, membranous, usually glandular; lower glumes 1.2-2 mm, usually 1-veined; upper glumes 1.2-2.6 mm, often 3-veined; lemmas 2-2.8 mm, broadly ovate, membranous, keels with 1-3 crateriform glands, apices obtuse to acute; paleas 1.2-2.1 mm, hyaline, keels scabrous, sometimes also ciliate, cilia to 0.3 mm, apices obtuse to acute; anthers 3, 0.2-0.5 mm, yellow. |
||||
Caryopses | 0.4-0.5 mm, ovoid, reddish-brown. |
0.5-0.7 mm, globose to broadly ellipsoid, smooth to faintly striate, not grooved, reddish-brown or translucent. |
||||
2n | = 20, 40. |
= 20. |
||||
Eragrostis ciliaris |
Eragrostis cilianensis |
|||||
Distribution |
AL; FL; GA; LA; MS; NJ; SC; TX; HI; PR; Virgin Islands
|
AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; HI; AB; BC; MB; NS; ON; QC; SK
|
||||
Discussion | Eragrostis ciliaris is native to the paleotropics. It is naturalized in parts of the United States, growing along roadsides, on waste sites, in xerothermic vegetation, and sometimes in saline habitats, at 0-200 m. It may be more widespread than indicated. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Eragrostis cilianensis is an introduced European species that now grows in disturbed sites such as pastures and roadsides, at 0-2300 m, through most of the contiguous United States and southern Canada. The English name refers to the odor of fresh plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 25, p. 71. | FNA vol. 25, p. 83. | ||||
Parent taxa | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis | Poaceae > subfam. Chloridoideae > tribe Cynodonteae > Eragrostis | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | E. megastachya, E. major | |||||
Name authority | (L.) R. Br. | (All.) Vignolo ex Janch | ||||
Web links |
|