1	"Annual (except <i>Eriogonum inflatum</i>, perennial herb, keyed in Group 2 when flowering 1st year)"	2
1	"Perennial herb"	3
2	"Involucres angled to strongly ribbed, sessile and strongly appressed or at tips of short bracted branchlets (or peduncled) (subg. <i>Oregonium</i>)"	"Eriogonum Group 1"
2	"Involucres smooth, not ribbed or angled, generally peduncled, if sessile then not appressed (subg. <i>Ganysma</i>)"	"Eriogonum Group 2"
3	"Flower stipe present, sometimes weakly so, not winged; inflorescence bracts 2--13+ (subg. <i>Oligogonum</i>)"	"Eriogonum Group 3"
3	"Flower stipe 0 or +- winged; inflorescence bracts generally 3 (mainly subg. <i>Eucycla</i>)"	"Eriogonum Group 4"