The crown of the plant is covered with tan woolly hairs. Leaves all basal, 3 to several-veined, narrowly elliptic or lance-elliptic, 4 to 12 inches long, usually less than 1 1/2 inches wide. Flowering ...

This paper describes six species of plants, the first known from this region, comprising a large Equisetum and five Cycadophytes, associated with the shells of Unio, from the upper part of the Red ...

Leaves are alternate, lacking petioles, oblong or lance-shaped, divided into spiny-tipped irregular lobes. Flowers are unisexual, on separate plants; flowers purple (occasionally white) in heads 1/2 ...