Orthocarpus purpureoalbus Orthocarpus luteus Orthocarpus tolmiei Orthocarpus holmgreniorum Orthocarpus barbatus Orthocarpus bracteosus Orthocarpus cuspidatus Orthocarpus imbricatus Orthocarpus purpureo-albus Orthocarpus pachystachyus Orthocarpus tenuifolius
World Flora Online, accessed June 20, 2024