The Lure of San Francisco: A Romance Amid Old Landmarks
s; anthers often uni
rils
their anthers in
nvolucrate head
nvolucrate; corolla irr
or nearly so, as many as its lobes; stip
te, inserted o
ewer than the corolla-
leaves oppos
s in a dense involucra
2–5-
nd without stipu
horled, and with sti
petioles sometimes with stipule-li