1	"Leaves simply pinnate or 4-foliolates; plants trees or shrubs"	Steganotaenia
1	"Leaves repeatedly pinnately or ternately divided or, if simply pinnate, plants herbaceous"	2
2	"Ovary and fruit with glochidiate spines"	"Torilis {Torilis arvensis}"
2	"Ovary and fruit without glochidiate spines"	3
3	"Ovary hairy, at least along the margins, hairs not always persistent in fruit"	4
3	"Ovary and fruit glabrous"	9
4	"Bracts pinnately divided"	"Daucus {Daucus carota}"
4	"Bracts, if present, entire"	5
5	"Peduncles mostly 20 cm long or longer; umbels very dense, each umbellet with many staminate flowers surrounding a single pistillate flower"	"Pycnocycla {Pycnocycla glauca}"
5	"Peduncles up to 12 cm long; umbels not particularly dense; umbellets not as above"	6
6	"Plants 50-400 cm tall, distinctly woody below; umbels with 40-60 rays"	"Diplolophium {Diplolophium somaliense}"
6	"Plants up to 50 cm tall, herbaceous or softly woody below; umbels with fewer rays"	7
7	"Leaves rigid, once or twice ternately divided; plants robust perennials growing in rock crevices"	"Seseli {Seseli scopulorum}"
7	"Leaves not rigid, pinnately divided; plants slender"	8
8	"Vittae (2-)3(-3) in each goove; basal leaves once pinnate"	"Pimpinella {Pimpinella hirta}"
8	"Vittae 1 per groove; basal leaves 2-3 times pinnate"	"Trachyspermum {Trachyspermum pimpinelloides}"
9	"Outer 2 petals in outer flowers much larger than the others; fruits subglobose"	"Coriandrum {Coriandrum sativum}"
9	"All petals in all flowers similar in size; fruits variously shaped"	10
10	"Petals white"	11
10	"Petals yellow"	12
11	"Umbels sessile or almost so; basal and lower stem leaves simply pinnate with lanceolate to ovate segments"	"Apium {Apium nodiflorum}"
11	"Umbels distinctly pedunculate; basal and lower stem leaves 2-3 times pinnate with linear segments"	"Trachyspermum {Trachyspermum pimpinelloides}"
12	"Fruits slightly compressed, prominently ribbed but not winged"	"Foeniculum {Foeniculum vulgare}"
12	"Fruits strongly dorsally compressed, winged"	13
13	"Plants annual, less than 1 m tall; 1 vitta per groove"	"Anethum {Anethum graveolens}"
13	"Plants robust perennials, often more than 1 m tall; usually 3 vittae per groove"	"Ferula {Ferula communis}"