3.
Leontodon saxatilis
Lamarck, Fl. Franç. 2: 115. 1779.
Hairy hawkbit
Annuals or perennials,
10—40 cm.
Stems
1—15+, ascending, simple, glabrous or coarsely hispid.
Leaves:
blades oblanceolate to oblong, 2—15 × 0.5—2.5 cm, margins entire, dentate, or deeply lobed, faces hispid or hirsute, hairs minutely bifid.
Heads
borne singly.
Peduncles
ebracteate.
Calyculi
of 10—16, subulate bractlets 1—4 mm, glabrous or hirsute.
Involucres
campanulate, 6—13 × 4—9 mm.
Phyllaries
16—20, narrowly lanceolate, 6—8 mm, subequal, glabrate to coarsely hirsute.
Florets
20—30; corollas bright yellow to grayish yellow (outer faces), 8—15 mm.
Cypselae
fusiform, 4—5.5 mm, (outer curved, thick, not beaked, often enclosed by phyllaries, inner beaked, beaks 1—3 mm);
pappi
of 2 types: on outer cypselae, crowns of bristlelike scales ca. 0.5 mm; on inner, of dusky white or pale yellow, plumose bristles 5—6 mm.
2
n
= 8.
Subspecies 2 (2 in the flora): introduced; Europe.
Leontodon saxatilis
is widely introduced in North America. It is identified by heads borne singly, ebracteate peduncles, glabrous or hairy leaves, and mixed pappi. Some individuals are coarsely hirsute and easily confused with
L. hispidus
.
Leontodon taraxacoides
(Villars) Willdenow ex Mérat de Vaumartoise (1831), long used for this species, is a later homonym of
L. taraxacoides
Hoppe & Hornschuch (1821).
