Sonchus asper, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, head (close up). Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias amplexicaulis, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Sonchus asper, Infructescence. Family Asteraceae, Subclass Asteridae. Origin: Introduced
Sonchus asper, Capitula at anthesis and past. Family Asteraceae, Subclass Asteridae. Origin: Introdu...
Sonchus asper, Capitulum past anthesis, close. Family Asteraceae, Subclass Asteridae. Origin: Introd...
Asclepias asperula, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Sonchus asper, Capitulum past anthesis, sectioned - fruit, pappus. Family Asteraceae, Subclass Aster...
Asclepias asperula, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Heterotheca subaxillaris, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Silphium radula, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Senecio aureus, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias tuberosa, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, head (close up). Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias amplexicaulis, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Sonchus asper, Infructescence. Family Asteraceae, Subclass Asteridae. Origin: Introduced
Sonchus asper, Capitula at anthesis and past. Family Asteraceae, Subclass Asteridae. Origin: Introdu...
Sonchus asper, Capitulum past anthesis, close. Family Asteraceae, Subclass Asteridae. Origin: Introd...
Asclepias asperula, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Sonchus asper, Capitulum past anthesis, sectioned - fruit, pappus. Family Asteraceae, Subclass Aster...
Asclepias asperula, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Heterotheca subaxillaris, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Silphium radula, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Senecio aureus, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias tuberosa, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Thymophylla pentachaeta, head (close up). Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias amplexicaulis, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native