178 Order CAMPANULALES 
5. Sideranthus (Aplopappus). 932. 
Leaves spinescently toothed, not pinnatifid. 
Rays wanting; perennial with a woody caudex. 1. S. grindelioides. 
Rays present; annual. 2. S. annuus. 
Leaves pinnatifid. 3. S. spinulosus. 
1. Sideranthus grindelioides (Nutt.) Britton. 
Eriocarpum grindelioides Nutt. 
On dry plains in the western part of the state. Callaway; Banner 
county; Hat Creek basin. 
2. Sideranthus annuus Rydb. 
In dry, sandy soil in the western part of the state. 
3. Sideranthus spinulosus (Nutt.) Sweet. 
Common in dry soil in the western part of the state. Broken Bow; 
Cambridge; Culbertson; Deuel county; Fairbury; Niobrara; Red 
Cloud; Thedford; Valentine; Wild Cat mountains. 
6. Stenotus. 933. 
1. Stenotus armerioides Nutt. 
Nebraska, according to Britton’s Manual. 
7. Solidago. 933. 
Goldenrods. 
Inflorescence a panicle or thyrsus; not flat-topped. 
Leaves not triple-veined. 
Outer involucral bracts with spreading tips. 1. S. petiolaris. 
All the involucral bracts with appressed tips. 
Heads not secund on the branches of the inflorescence. 
2. S. rigidiuscula. 
Heads secund on the branches of the inflorescence. 
Racemes few; leaves coarsely serrate. 3. S. ulmifolia. 
Racemes numerous; leaves crenate-dentate. 8. S. nemoralis. 
Leaves triple-veined, i. e., with 2 lateral veins much larger than 
the rest. 
Stems glabrous. 
Leaves of the stem lanceolate, sharply serrate. 4. S. serotina. 
Leaves of the stem linear-lanceolate, entire or sparingly ser- 
rate with low teeth. 5. S. glaberrima. 
Stems pubescent or scabrous. 
Leaves lanceolate. 
Plants mostly over 6 dm. high, not yellowish. 
Leaves sharply serrate, not cinereous-pubescent. 
6. S. canadensis. 
Leaves less serrate, sometimes all entire, cinereous-pubes- 
cent. 7. S. altissima. 
Plants not over 3 dm. high, yellowish canescent, leaves re- 
motely serrate above the middle or entire. 
8. S. gilvocanescens. 
Leaves oblong, oblanceolate or spatulate. 
Panicle one-sided, its branches recurved or spreading; leaves 
obscurely 3-veined. 9. S. nemoralis. 
Panicle not one-sided, its branches erect; leaves strongly 3- 
veined. 10. S. mollis. 
Inflorescence a flat-topped corymbose cyme. 11. S. rigida. 
