Some relatively infrequent species appear characteristic of more open stands on drier ground (i1): Agalinis
gattingeri, Crotolaria sagittalis, Dichanthelium laxiflorum, Potentilla simplex, Spiranthes ovalis, Symphyotrichum laeve var.
auriculata, Desmodium ochroleucum, Echinacea purpurea, Prenanthes aspera, Silphium integrifolium (or perhaps S.
(Agalineae), the flowers of bee-pollinated North and South American species are bell-shaped, pink with guide spots and lines, and stigma and anthers positioned at the rim of the corolla tube (Pennell, 1935); the flowers of presumably hummingbird-pollinated South American species are tubular, red, with exserted stigma and stamens (J.
Other plants found at the site included Agalinis
SC/NM 6 N P U SpSu SCROPHULAREACEAE Agalinis
Herbaceous plants occurring in both sedge meadows include Agalinis
purpurea, Eupatorium perfoliatum, Filipendula rubra, Galium triflorum, Lobelia kalmii, Lysimachia quadriflora, Monarda fistulosa, Oxypolis rigidior, Pedicularis lanceolata, Pilea fontana, Pycnanthemum virginianum, Rudbeckia hirta var.
purpurea * * Forb Species Liberty Grove Croton texensis * Artemisia sp.
A light and scanning electron microscope study of seed morphology in Agalinis
(Scrophulariaceae) and its taxonomic significance.