Thymophylla pentachaeta, head (close up). Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias tuberosa, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Symphyotrichum subulatum, Capitula at anthesis; (Aster subulatus) . Family Asteraceae, Subclass Ast...
Tetraneuris linearifolia, Capitulum, from base, close. Family Asteraceae, Subclass Asteridae. Origin...
Thymophylla pentachaeta, head (close up). 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
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Heterotheca subaxillaris, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias asperula, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Asclepias verticillata, Inflorescence, close. Family Asclepiadaceae, Subclass Asteridae. Origin: Nat...
Parthenium hysterophorus, Capitulum from above. Family Asteraceae, Subclass Asteridae. Origin: Nativ...
Symphyotrichum patens, Inflorescence - side view. Family Asteraceae, Subclass Asteridae. Origin: Nat...
Symphyotrichum patens, inflorescence - front view. Family Asteraceae, Subclass Asteridae. Origin: Na...
Asclepias tuberosa, Plant in flower. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Asclepias verticillata, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Asclepias tuberosa, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Symphyotrichum subulatum, Capitula at anthesis; (Aster subulatus) . Family Asteraceae, Subclass Ast...
Tetraneuris linearifolia, Capitulum, from base, close. Family Asteraceae, Subclass Asteridae. Origin...
Thymophylla pentachaeta, head (close up). 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
Thymophylla pentachaeta, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Heterotheca subaxillaris, whole plant. Family Asteraceae, Subclass Asteridae. Origin: Native
Asclepias asperula, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Asclepias verticillata, Inflorescence, close. Family Asclepiadaceae, Subclass Asteridae. Origin: Nat...
Parthenium hysterophorus, Capitulum from above. Family Asteraceae, Subclass Asteridae. Origin: Nativ...
Symphyotrichum patens, Inflorescence - side view. Family Asteraceae, Subclass Asteridae. Origin: Nat...
Symphyotrichum patens, inflorescence - front view. Family Asteraceae, Subclass Asteridae. Origin: Na...
Asclepias tuberosa, Plant in flower. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Asclepias verticillata, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Asclepias tuberosa, whole plant. Family Asclepiadaceae, Subclass Asteridae. Origin: Native
Symphyotrichum subulatum, Capitula at anthesis; (Aster subulatus) . Family Asteraceae, Subclass Ast...
Tetraneuris linearifolia, Capitulum, from base, close. Family Asteraceae, Subclass Asteridae. Origin...