Gamochaeta pensylvanica (Willd.) Cabrera, Bol. Soc. Argent. Bot. 9 375 1961. (Syn: Gnaphalium peregrinum Fernald; Gnaphalium purpureum var. spathulatum (Lam.) H.E.Ahles; Gnaphalium purpureum var. spathulatum (Lam.) Baker; Gnaphalium spathulatum Lam.; Gnaphalium spathulatum Burm. f.; (≡) Gnaphalium pensylvanicum Willd. ); . Pennsylvania Cudweed, Pennsylvania everlasting; . Annual herb, up to 25 cm tall, slightly branched, leaves […]