22 



Fig. 16. ANDE.OPOQON TJNTXATERAlilS Hack, in DC. Monog. Phan. 6: 

 533. 1889. {Soryhum secundum Chapm. Fl. So. U. S. 581. 1860; not A. secimdus 

 Kunth, 1833.) BANNER SORGHUM.— A rather .stout, erect perennial 6-12 dm. 

 (2°-4°) high, with narrow, one-sided, many-flowered panicles 18-25 cm. (7'-10') 

 long. Ligule 4-5 mm. (2"-2i") long; leaf blades flat or convolute when dry, 

 a-5 mm. (l"-2i") wide. Spikelets (a) linear-lanceolate, 7 mm. (3^") long; first 

 glume lb) coriaceous, a little shorter than the second glume (c); awn of the 

 fourth glume (d) 30-35 mm. (15"-17") long, stout, and spirally twisted below.— 

 Low pine lands. South Carolina and Florida. June to October. 



