Eragrostis cilianensis |
Eragrostis pectinacea |
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stink grass, stinking lovegrass, éragrostide fétide |
eragrostide pecttnee, tuft love grass |
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Habit | Plants annual; tufted, without innovations. | Plants annual; tufted, without innovations, without glandular pits. | ||||||||
Culms | 15-45(65) cm, erect or decumbent, sometimes with crateriform glands below the nodes. |
10-80 cm, erect to geniculate or decumbent below, glabrous. |
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Sheaths | 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. |
hirsute at the apices, hairs to 4 mm; ligules 0.2-0.5 mm; blades 2-20 cm long, 1-4.5 mm wide, flat to involute, abaxial surfaces glabrous and smooth, adaxial surfaces scabridulous. |
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Panicles | (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. |
5-25 cm long, 3-12(15) cm wide, ovoid to pyramidal, usually open, sometimes contracted; primary branches 0.6-8.5 cm, appressed or diverging to 80° from the rachises, solitary or paired at the lowest 2 nodes; pulvini glabrous or sparsely hairy; pedicels 1-7 mm, flexible, appressed to widely divergent, sometimes capillary. |
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Spikelets | 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. |
3.5-11 mm long, 1.2-2.5 mm wide, linear-oblong to narrowly lanceolate, plumbeous, yellowish-brown, or dark reddish-purple, with 6-22 florets; disarticulation acropetal, paleas persistent. |
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Glumes | 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. |
subulate to ovate-lanceolate, hyaline; lower glumes 0.5-1.5 mm, at least 1/2 as long as the adjacent lemmas; upper glumes 1-1.7 mm, usually broader than the lower glumes; lemmas 1-2.2 mm, ovate-lanceolate, hyaline to membranous, grayish-green proximally, reddish-purple distally, lateral veins moderately conspicuous, apices acute; paleas 1-2 mm, hyaline to membranous, keels scabridulous, apices obtuse; anthers 3, 0.2-0.7 mm, purplish. |
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Caryopses | 0.5-0.7 mm, globose to broadly ellipsoid, smooth to faintly striate, not grooved, reddish-brown or translucent. |
0.5-1.1 mm, pyriform, slightly laterally compressed, smooth, faintly striate, brownish. |
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2n | = 20. |
= 60. |
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Eragrostis cilianensis |
Eragrostis pectinacea |
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Distribution |
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
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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; PR; BC; NB; NS; ON; QC; Virgin Islands
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Discussion | 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.) |
Eragrostis pectinacea is native from southern Canada to Argentina. In the Flora region, it grows in disturbed sites such as roadsides, railroad embankments, gardens, and cultivated fields, at 0-1200 m. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 25, p. 83. | FNA vol. 25, p. 81. | ||||||||
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 | (All.) Vignolo ex Janch | (Michx.) Nees | ||||||||
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