Seeds from Horkelia hendersonii Hendersons horkelia. This 5 to 8 inch plant is a rare species of flowering plant in the rose family. A perennial herb producing a low mat of hairy, glandular gray green foliage about a woody base. Inflorescence dense with 5 to 20 flowers topping reddish stem with few small leaves. The leaves are cylindrical and sometimes tapering to a point, growing erect in a patch around the caudex. It is included in the cnps Inventory of Rare and Endangered Plants list. Hardy in zones 8 to 9