126 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 
Eysenhardtia orthocarpa, see Eysenhardtia polystachya. 
Eysenliardtia polystachya (Orteg.) Sarg. Kidneywood. 
E. amorplioides H. B. K., E. orthocarpa (Gray) Cockerell. E. orthocarpa 
Wats., E. reticulata Penn., E. sui)coriacea Penuell, E, cobrifonnis Pennell, 
E. texana Scheele, Vihorquia polystachya Orteg. 
Range : 10, 11, 17, 20. 
Site: Dry, sun. 
Fruit: Legume, available in September. 
A large shrub to small or rarely large tree; flowers in May; fruit borne 
sparingly ; germination of seed about 50 percent. 
Observations: Particularly palatable to captive deer. A valuable boney 
plant. Good goat browse, and in southeastern Arizona one of the best summer 
and fall browses for horses and cattle. 
Eysenhardtia reticulata, see Eysenhardtia polystachya. 
Eysenhardtia subcoriacea, see Eysenhardtia polystachya. 
Eysenhardtia texana, see Eysenliardtia polystachya. 
Fagara clava-herculis, see Xanthoxyluni clava-herculis. 
Fagara fagara, see Xanthoxylum fagara. 
Fagara pterota, see Xanthoxyluni fagara. 
Fagus americana, see Fagus grandifoUa. 
Fagus grandifolia Ehrh. Beech. 
F. americana Sweet. 
Range : 20, 22, 23, 24, 25, 26, 27, 28, 29, 30. 
Site: Well-drained, sun, shade. 
Fruit: Nut, available September-October. 
A large tree; occurs on many slightly acid soils except sand; root system 
shallow and spreading; subject to sunscald ; easily injured by fire and late 
frosts ; root sprouts common ; generally free from insect attack ; wood used 
commercially ; grass ordinarily will not grow under this tree ; seeds often 
abortive ; 1,400-1,800 seeds per pound, germination 80 percent, about 250 usable 
plants per pound of seed. 
Stomach records: Ten species of birds, including ruffed grouse; opossum, rac- 
coon, gray and red fox, white-tailed deer ; found in 21.3 percent of raccoon 
stomachs examined November-January in New York. Ol)servations: Fifteen 
species of birds, including bobwhite, ruffed grouse, wild turkey, and ring-necked 
pheasant; black bear; preferred food of flying squirrel; white-tailed deer, Vir- 
ginia opossum, cottontail rabbit, red squirrel, red fox, gray fox, porcupine ; a 
most important food of raccoon in fall and early winter. 
Fallugia acuminata, see Fallugia pa^'adoxa. 
Fallugia paradoxa (Don) Endl. (pi. 14, C). Apache-plume. 
F. acuminata Cockerell, F. paradoxa acuminata Woot., F. micrantha Cock- 
erell, Sieversia paradoxa Don. 
Range : 9, 10, 11, 13, 14, 16, 17, 20. 
Site : Dry, well-drained, sun. 
Fruit : Achene, available August-November. 
A small to large, freely-branched, somewhat straggling, shrub; evergreen; 
flowers May-September; rapid growing when supplied with water; does not 
reach full height unless protected from grazing; seeds germinate well as soon 
as planted at 60-70° F. ; direct seeding experiments in New Mexico were un- 
successful; germination of seed 30-60 percent. 
Palatability fair to low for sheep, goats, and cattle; endures grazing well. 
Fatsia horrida, see Oplopanax horridum. 
Fendlera falcata Thornb. 
Range: 13, 14. 
Site: Dry, sun. 
Fruit: Capsule. 
A small to large shrub ; flowers May-July. 
