Taxonomy

Antennaria dioica (L.) Gaertn., Fruct. Sem. Pl. 2:410. 1791

Common synonyms

Antennaria acuminata Greene; Antennaria affinis Fernald; Antennaria albescens (E.E.Nelson) Rydb.; Antennaria albicans Fernald; Antennaria alborosea A.E.Porsild ex Porsild; Antennaria alborosea subsp. rosea; Antennaria angustifolia Rydb.; Antennaria arida E.E.Nelson; Antennaria arida subsp. arida; Antennaria arida subsp. visci E.E.Nelson; Antennaria arida subsp. viscidula E.E.Nelson; Antennaria arida var. arida; Antennaria arida var. humilis (Rydb.) E.E.Nelson; Antennaria breitungii A.E.Porsild; Antennaria brevistyla Fernald; Antennaria chlorantha Greene; Antennaria concinna E.E.Nelson; Antennaria confinis Greene; Antennaria dioeca (L.) Gaertn.; Antennaria dioica var. australis Gris; Antennaria dioica var. dioica; Antennaria dioica var. hyperborea (D.Don) DC.; Antennaria dioica var. hyperborea (D.Don) Greene; Antennaria dioica var. kernensis Jeps.; Antennaria dioica var. rosea (Greene) D.C.Eaton; Antennaria dioica var. rosea Cockerell; Antennaria elegans A.E.Porsild; Antennaria foliacea var. humilis Rydb.; Antennaria formosa Greene; Antennaria fusca E.E.Nelson; Antennaria gaspensis (Fernald) Fernald; Antennaria hendersonii Piper; Antennaria hibernica Braun-Blanq.; Antennaria howellii subsp. gaspensis (Fernald) Chmiel.; Antennaria hyperborea D.Don; Antennaria imbricata E.E.Nelson; Antennaria incarnata A.E.Porsild; Antennaria insularis Greene; Antennaria isolepis Greene; Antennaria laingii A.E.Porsild; Antennaria lanulosa Greene; Antennaria leontopodioides (Willd.) Cody; Antennaria leontopodioides (Willd.) Nakai; Antennaria leuchippi Porsild; Antennaria maculata Greene; Antennaria manicouagana P.Landry; Antennaria media subsp. fusca (E.E.Nelson) Chmiel.; Antennaria microphylla Gand.; Antennaria microphylla var. solititialis Lunell; Antennaria montana Gray; Antennaria neglecta var. gaspensis (Fernald) Cronquist; Antennaria neodioica var. chlorantha (Greene) B.Boivin; Antennaria neodioica var. gaspensis Fernald; Antennaria oxyphylla Greene; Antennaria parvifolia var. rosea (D.C.Eaton) Greene; Antennaria peasei Fernald; Antennaria polyphylla Greene; Antennaria polyphylla Greene ex C.F.Baker; Antennaria pulvinata Greene; Antennaria pulvinata subsp. albescens E.E.Nelson; Antennaria pulvinata subsp. pulvinata; Antennaria pulvinata var. pulvinata; Antennaria rosea (D.C.Eaton) Greene; Antennaria rosea f. decipiens B.Boivin; Antennaria rosea f. rosea; Antennaria rosea subsp. arida (E.E.Nelson) R.J.Bayer; Antennaria rosea subsp. confinis (Greene) R.J.Bayer; Antennaria rosea subsp. divaricata E.E.Nelson; Antennaria rosea subsp. elegans (Porsild) Bayer; Antennaria rosea subsp. pulvinata (Greene) R.J.Bayer; Antennaria rosea subsp. rosea; Antennaria rosea var. angustifolia (Rydb.) E.E.Nelson; Antennaria rosea var. imbricata (E.E.Nelson) B.Boivin; Antennaria rosea var. imbricata (E.E.Nelson) E.E.Nelson; Antennaria rosea var. rosea; Antennaria sansonii Greene; Antennaria sansonii subsp. pulvinata; Antennaria scariosa E.E.Nelson; Antennaria sedoides Greene; Antennaria sedoides subsp. confinis; Antennaria sordida Greene; Antennaria speciosa E.Nelson; Antennaria speciosa Greene; Antennaria steetziana Turcz.; Antennaria straminea Fernald; Antennaria subviscosa Fernald; Antennaria tomentella E.E.Nelson; Antennaria viscidula (E.E.Nelson) A.Nelson; Antennaria viscidula (E.E.Nelson) A.Nelson ex Rydb.; Chamaezelum dioicum Link; Cyttarium dioicum Peterm.; Filago leontopodioides Willd.; Gnaphalium alpinum Asso; Gnaphalium alpinum Asso ex DC.; Gnaphalium boreale Turcz.; Gnaphalium boreale Turcz. ex DC.; Gnaphalium dioicum L.; Gnaphalium dioicum var. dioicum; Gnaphalium hyberboreum Winch; Gnaphalium hyberboreum Winch ex DC.; Gnaphalium leontopodioides (Willd.) Willd.; Gnaphalium leontopodium var. sibiricum Franch.; Gnaphalium pes-cati Garsault; Leontopodium alpinum f. gracile Beauverd; Leontopodium alpinum var. depauperatum Beauverd; Leontopodium leontopodioides (Willd.) Beauverd; Leontopodium leontopodioides var. humile Beauverd; Leontopodium leontopodioides var. leontopodioides; Leontopodium sibiricum Cass.; Leontopodium sibiricum var. sibiricum

Common name

Cat's foot, pussytoes

Description

Propagule or dispersal unit is the fruit with pappus. Fertile part 0.6-1.3 mm long, 0.2-0.4 mm wide, in side view widest in upper part (obovoid), rarely widest in the middle, +/- straight, the upper (apical) end narrowing, in cross-section flattened, basal scar (carpopodium) pronounced and well-differentiated, central, rarely off to the side (oblique) or at least asymmetric, beak (=thinner sterile stalk between seed and pappus) absent, wings absent, fruit surface light brown or straw or dark brown, smooth (except at cellular level), with no hairs (glabrous), thickened margin absent, longitudinal ribs absent or present, 3-5, their surfaces smooth, with no hairs (glabrous).

Pappus type bristles / hairs, pappus elements all +/- similar, up to 6-8 mm long, in one row, pappus elements numerous, falling off as a whole, the individual bristles smooth or rough / serrated (barbellate), +/- equal width along length, white / translucent.

Ecology

Perennial, stoloniferous herb, dioecious, fruits wind-dispersed. Temperate to arctic regions. Found in mountain grasslands, heaths, and sometimes dry pastures.

Native range

Canada, United States, north-western Mexico, Greenland, Europe including northern Mediterranean, Asian Russia, Caucasus, northern China