|
plants less than 3 dm tall, usually 1-2
dm; NOT [plants more than 3 dm tall] |
|
plants NOT with a bluish tinge |
|
plants scapose; NOT [plants with stem
leaves] |
|
foliage NOT spiny |
|
leaves much divided, with leaflets or
segments numerous; NOT [leaves simple or divided into few well-developed
leaflets] |
|
lowest leaves (and the upper) compound;
NOT [lowest leaves simple] |
|
leaves pinnate, trifoliate, or simple;
NOT [leaves palmate with 5-7 large leaflets], foliage NOT digitately
compound |
|
leaves 2 or more times pinnate or
ternate; NOT [leaves once pinnate] |
|
NOT [leaves usually trifoliate; leaflets
palmate, 10-30 cm wide] |
|
plants lacking axillary bulblets; NOT
[plants with axillary bulblets largely replacing flowers] |
|
inflorescence NOT bluish |
|
flowers NOT in dense globose heads] |
|
umbel compound; NOT [umbel simple] |
|
umbel many-flowered; NOT [umbel
few-flowered] |
|
involucral bracts small; NOT [involucral
bracts large] |
|
involucral bracts slightly or not
dissected; NOT [involucral bracts pinnately dissected] |
|
bracts NOT spiny |
|
flowers white; NOT [flowers yellow] |
|
fruits more than 5 mm long; NOT [fruits
3-4 mm long] |
|
fruit generally 3 times as long as broad
or less; NOT [fruit several times longer than broad] |
|
fruit oblong to elliptical; NOT [fruit
linear to clavate] |
|
fruits flattened dorsally (at right
angles to the styles); NOT [fruits more or less rounded in
cross-section] |
|
fruit conspicuously winged on marginal
and dorsal nerves; NOT [fruit winged on the marginal nerves only or
wingless] |
|
fruit NOT spiny; NOT [fruit covered with
short, hooked spines] |