ASTERACKAi: 





Achillea 



(Nat, i 



1. Heads white 



a. Heads single ; leaves finely disse 



b. Heads double; leaves simple 



2. Heads yellow 





Chrysanthemum— Chrysanthemum, 1 



(Gr. chrysos, gold, snthsmon, 



1. Heads large, few or solitary 



a. Heads with a single row of whit- 



(1) Leaves spatulate 



(a) Weed with narrow, deeply cul l< 



(b) Cultivated plant with thick crenate li 



(2) Leaves lance-ovate, toothed; cul' 



b. Heads variously colored, usually with many r< 



(1) The various showy "chrysanthemums"' arc hybri 



and C. morifoliuin 



(2) Heads rose or pink, single garden form 



2. Heads small, numerous, often double; leaves deeply cut pinnatifid 



Matricaria I Chamomile 

 (From its use in medicine; cfr. Lat, matrix) 



Annual, with smooth aromatic deeply cut leaves and small white 



or double At. 



Boltonia— Boltonia 



i Named for Bolton, an English botanist of tl 



Leaves entire; rays white to purplish 



Tagetes -Marigold 



oubtful m< • 

 Leaves pinnate; head single or double; rays yellow or orange 



Grindelia I Irindelia 

 (Named for Grlndel, a Russian 



Leaves simple, toothed; heads yellow, sticky 



Helenium Sneezeweed 



(Gr. heienion, i a nl ■ 



1. Stems winged; heads 2-4 cm. wide 



2. Stems not winged ; heads 6-8 cm. wide 











Gaillardia Gaillan 



i Named for the botai 



1. Annual; rays brown-purple, yellow at tip 



2. Perennial; rays yellow, or brown-purple at base 



Calendula Mari 



(Lat. kalendae, months, 

 Leaves oblong, sessile; heads single or double 



Taraxacum- 1 >.m<:< 



(Gr. tarassc, I 

 Leaves lobed or dissected ; b< a 



Dys 



(Gr. dysodes, lll-sm.-lllnir. n B 

 Leaves deeply pinnatifid; heads small, yellow 



Tragopogon Salsify, i nt, ' ; " 



(Gr, tra'gos. goat, pog.m 



1. Heads yellow; bracts not longer than th( 



2. Heads purple; bracts much longer thai 





