Author:Mark W. Bierner
Affiliation
Affiliation information has been provided by Volume 19-20-21.
Institution
Boyce Thompson Arboretum
Location
Superior, Arizona
Treatments
A
H
- Helenium
- Helenium amarum
- Helenium amarum var. amarum
- Helenium amarum var. badium
- Helenium arizonicum
- Helenium autumnale
- Helenium bigelovii
- Helenium bolanderi
- Helenium brevifolium
- Helenium campestre
- Helenium drummondii
- Helenium elegans
- Helenium elegans var. amphibolum
- Helenium elegans var. elegans
- Helenium flexuosum
H cont.
- Helenium linifolium
- Helenium microcephalum
- Helenium microcephalum var. microcephalum
- Helenium microcephalum var. oöclinium
- Helenium pinnatifidum
- Helenium puberulum
- Helenium quadridentatum
- Helenium thurberi
- Helenium vernale
- Helenium virginicum
- Hymenoxys
- Hymenoxys ambigens
- Hymenoxys ambigens var. ambigens
- Hymenoxys ambigens var. floribunda
- Hymenoxys ambigens var. neomexicana
- Hymenoxys bigelovii
- Hymenoxys brachyactis
H cont.
- Hymenoxys brandegeei
- Hymenoxys cooperi
- Hymenoxys grandiflora
- Hymenoxys helenioides
- Hymenoxys hoopesii
- Hymenoxys jamesii
- Hymenoxys lemmonii
- Hymenoxys odorata
- Hymenoxys quinquesquamata
- Hymenoxys richardsonii
- Hymenoxys richardsonii var. floribunda
- Hymenoxys richardsonii var. richardsonii
- Hymenoxys rusbyi
- Hymenoxys subintegra
- Hymenoxys texana
- Hymenoxys vaseyi
- ... further results