Taxonomy

Picris hieracioides L., Sp. Pl.. 1753

Common synonyms

Apargia hieracioides (L.) Willd.; Apargia rigens Mart.; Apargia rigens Mart. ex Rchb.; Bidens biternata var. mayebarae (Kitam.) Kitam.; Bidens mayebarai Kitam.; Closirospermum asperum Bubani; Crepis hieracioides Lam.; Crepis lappacea Lapeyr.; Crepis lappacea Willd.; Crepis scabra Lapeyr.; Crepis virgata Lapeyr.; Hedypnois hieracioides (L.) Huds.; Hieracium muricellum Fr.; Hieracium muricellum subsp. muricellum; Leontodon hieracioides (Willd.) DC.; Picris angustissima Chenevard; Picris arvalis Boreau; Picris aspera Gilib.; Picris asperrima Lindl.; Picris attenuata A.Cunn.; Picris crinita Reut.; Picris dahurica DC.; Picris gracilis Jord.; Picris hamulosa Wall.; Picris hieraciifolia; Picris hieracioides subsp. kamtschatica; Picris hieracioides subsp. mayebarae Kitam.; Picris hieracioides var. akaishiensis Kitam.; Picris hieracioides var. alpina Koidz.; Picris hieracioides var. angustissima (Arv.-Touv. ex Chenevard) Hegi; Picris hieracioides var. arenaria (Nyár.) P. D. Sell; Picris hieracioides var. dentata Ledeb.; Picris hieracioides var. glabrata Hook.f.; Picris hieracioides var. indica Wight; Picris hieracioides var. jessoensis (Tatew.) Ohwi; Picris hieracioides var. kelleriana (Arv.-Touv.) Hegi; Picris hieracioides var. leteae (Nyár.) P. D. Sell; Picris hieracioides var. litoralis Kitam.; Picris hieracioides var. mayebarae (Kitam.) Ohwi; Picris hieracioides var. silvatica Wimm. & Grab.; Picris hieracioides var. sinuata Ledeb.; Picris hieracioides var. sinuatodentata Schur; Picris hieracioides var. subruncinata Schur; Picris hieracioides var. subumbellata Schur; Picris hieracium With.; Picris japonica var. akaishiensis (Kitam.) Ohwi; Picris japonica var. jessoensis (Tatew.) Ohwi; Picris japonica var. mayebarae (Kitam.) Ohwi; Picris jessoensis Tatew.; Picris kelleriana Arv.-Touv.; Picris lappacea (Willd.) Rchb.; Picris nepalensis W.H.Baxter; Picris oligocephala Schur; Picris prenanthoides Schur; Picris rigida Ledeb. ex Spreng.; Picris ruderalis F.W.Schmidt; Picris ruderalis F.W.Schmidt ex Willd.; Picris sonchoides var. arenaria Nyár.; Picris sonchoides var. leteae Nyár.; Picris strigosa Wall.; Picris strigosa subsp. goniocaula (Boiss.) Lock; Picris strigosa subsp. macroticha Lack; Picris transsilvanica Schur; Picris undulata Dulac

Common name

Hawkweed

Description

Propagule or dispersal unit is the fruit with pappus. Fertile part 4-4.5(-5) mm long, 0.5-0.9 mm wide, in side view widest in lower part (ovoid), widest in the middle, rarely widest in upper part (obovoid), +/- straight or conspicuously curved, the upper (apical) end narrowing, in cross-section flattened, basal scar (carpopodium) inconspicuous and undifferentiated, central, beak (=thinner sterile stalk between seed and pappus) absent, beak length 0-0.3 mm, wings absent, fruit surface light brown or straw, wrinkled, with no hairs (glabrous), thickened margin absent, longitudinal ribs present, rarely absent (by misinterpretation), 5-12, their surfaces toothed, serrated or scale-like, with no hairs (glabrous).

Pappus type bristles / hairs, pappus elements all +/- similar, rarely clearly differentiated, up to 6-8 mm long, in several (?) rows, pappus elements numerous, falling off as a whole, the individual bristles feathery (plumose) along most of length, +/- equal width along length, white / translucent or yellowish.