Browse photos by Richard Old:
Achillea
Achillea ptarmica – 4 photos
Agoseris
Ambrosia
Ambrosia trifida – 10 photos
Anaphalis
Anthemis
Anthemis cotula – 4 photos
Artemisia
Artemisia annua – 4 photos
Artemisia biennis – 7 photos
Artemisia frigida – 2 photos
Artemisia vulgaris – 12 photos
Bidens
Bidens cernua – 5 photos
Bidens frondosa – 2 photos
Carduus
Carduus acanthoides – 3 photos
Carduus nutans – 4 photos
Carthamus
Centaurea
Centaurea montana – 4 photos
Chondrilla
Chondrilla juncea – 5 photos
Chrysothamnus
Cirsium
Cirsium arvense – 7 photos
Cirsium brevifolium – 3 photos
Cirsium undulatum – 3 photos
Conyza
Conyza bonariensis – 3 photos
Coreopsis
Coreopsis tinctoria – 2 photos
Cosmos
Cosmos bipinnatus – 6 photos
Cota
Cota austriaca – 3 photos
Cota tinctoria – 3 photos
Crepis
Crepis capillaris – 4 photos
Crepis tectorum – 3 photos
Crupina
Crupina vulgaris – 7 photos
Cyclachaena
Dieteria
Dieteria canescens – 21 photos
Erechtites
Erechtites minimus – 4 photos
Ericameria
Ericameria nauseosa – 3 photos
Erigeron
Erigeron strigosus – 4 photos
Euthamia
Galinsoga
Gamochaeta
Gamochaeta ustulata – 4 photos
Grindelia
Grindelia squarrosa – 10 photos
Guizotia
Guizotia abyssinica – 5 photos
Helianthus
Helianthus annuus – 3 photos
Helianthus tuberosus – 10 photos
Hieracium
Hieracium caespitosum – 12 photos
Hypochaeris
Inula
Inula helenium – 7 photos
Iva
Iva axillaris – 14 photos
Jacobaea
Jacobaea vulgaris – 8 photos
Lactuca
Lactuca biennis – 6 photos
Lactuca canadensis – 2 photos
Lactuca sativa – 6 photos
Lactuca serriola – 10 photos
Lapsana
Lapsana communis – 1 photo
Leucanthemum
Madia
Madia elegans – 4 photos
Madia gracilis – 4 photos
Madia sativa – 3 photos
Matricaria
Pseudognaphalium
Ratibida
Rhaponticum
Rhaponticum repens – 4 photos
Rudbeckia
Silybum
Silybum marianum – 13 photos
Solidago
Soliva
Soliva sessilis – 4 photos
Sonchus
Sonchus oleraceus – 17 photos
Stephanomeria
Symphyotrichum
Tanacetum
Tanacetum balsamita – 4 photos
Tragopogon
Tragopogon mirus – 8 photos
Tragopogon pratensis – 19 photos
Tussilago
Tussilago farfara – 6 photos
Xanthium
Xanthium strumarium – 2 photos