Red de Herbarios Mexicanos Web-Key USU-WILD 4950 Group 4

habit

shrubs

herbaceous

longevity

annual or biennial

perennial

sap

latex absent (sap clear)

latex present

leaves/twigs aromatic when crushed

without marked odor

clearly odiferous

blade division

all simple

deeply lobed or divided

some or all fully compound

leaf attachment

sessile or nearly so

leaf stalk (petiole) clearly present

winged petiolate

leaf (leaflet) margin

entire

toothed

lobed

plant sexuality

monoecious

dioecious

bisexual flowers

corolla (petal) fusion

petals separate

fused, at least toward base

corolla symmetry

regular

bilateral

ovary position

sepals/petals attached above middle of ovary (inferior or partly inferior ovary)

sepals/petals attached below middle of ovary (ovary superior)

carpel number

1

2

fruit consistency at maturity

dry/leathery

fleshy

mature fruit dehiscence

opening along 1-2 seams

does not split open to release seed

head type

discoid (disk only)

radiate (rays and disks)

all ligulate

Clave