Category
page 1Taxa named by John Thomas Howell
Trillium chloropetalum
species of plant
Iris chrysophylla
species of plant
Arctostaphylos edmundsii
species of plant
Physocarpus alternans
species of plant
John Thomas Howell
American botanist (1903-1994)
Monardella purpurea
species of plant
Eriogonum ampullaceum
species of plant
Ceanothus gloriosus
species of plant
Eriogonum apricum
species of plant
Lomatium gormanii
species of plant
Ceanothus sonomensis
species of plant
Ericameria ophitidis
Serpentine haplopappus
Eriogonum argillosum
species of plant
Ceanothus confusus
species of shrub
Microseris paludosa
species of plant
Galium munzii
species of plant