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devil's paintbrush, king-devil, orange hawkweed

alpine hawkweed, slender hawkweed

Habit Plants 15–60 cm; taprooted, stoloniferous. Plants (2.5)4–30 cm; taprooted.
Stems

erect; simple, pilose-hispid, usually also stipitate-glandular, tomentulose distally.

erect; simple, tomentulose, sometimes glabrous proximally.

Leaves

basal, sometimes 1 near stem base, oblanceolate, 5–20 cm;

margins entire;

tips acute or obtuse;

surfaces pilose-setose;

petioles short, winged.

basal, broadly or narrowly elliptic to oblanceolate, 3–12+ cm;

margins entire, rarely obscurely denticulate;

tips acute or obtuse;

surfaces usually glabrous, rarely stipitate-glandular, petiolate.

Inflorescences

raceme- or panicle-like arrays, bracteate or not.

raceme-like arrays or heads solitary, bracteate or not.

Involucres

campanulate in flower; ovoid in fruit, 6–8 mm.

cylindric or campanulate; ovoid in fruit, 6–10 mm.

Florets

25–100+;

ligules 10–15 mm; reddish orange, drying purplish.

20–60+;

ligules 7–11 mm, yellow.

Phyllaries

linear-lanceolate;

surfaces blackish stipitate-glandular, usually setose-hispid; inner 13–30; outer > inner.

linear-lanceolate;

surfaces stellatetomentulose; black-villous, stipitate-glandular; inner 12–20+; outer gradually shorter.

Fruits

columnar, 1.2–2 mm, dark brown.

columnar, 1.5–3.5 mm, dark brown.

2n

=18, 27, 36, 45, 54, 63, 72.

=18.

Hieracium aurantiacum

Hieracium triste

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Disturbed areas, roadsides, clearcuts, riverbanks, pastures. Flowering Jun–Aug. 100–1400 m. BW, Casc, CR, ECas. CA, ID, NV, WA; scattered in North America; Europe. Exotic.

Hieracium aurantiacum is a conspicuous and well-known weed over much of the United States and southern Canada. Its scattered distribution in Oregon indicates an ability to disperse by seed, and once established it may persist and spread by both seeds and stolons.

Subalpine meadows, rocky slopes, streamsides, forests. Flowering Jul–Sep. 1300–3000 m. BW, Casc, ECas. CA, ID, WA; north to AK, northeast to Northwest Territories, east to WY, southeast to NM. Native.

Source Flora of Oregon, volume 2, page 288
Kenton Chambers
Flora of Oregon, volume 2, page 291
Kenton Chambers
Sibling taxa
H. albiflorum, H. bolanderi, H. caespitosum, H. greenei, H. horridum, H. lachenalii, H. longiberbe, H. murorum, H. parryi, H. pilosella, H. piloselloides, H. sabaudum, H. scouleri, H. triste, H. umbellatum
H. albiflorum, H. aurantiacum, H. bolanderi, H. caespitosum, H. greenei, H. horridum, H. lachenalii, H. longiberbe, H. murorum, H. parryi, H. pilosella, H. piloselloides, H. sabaudum, H. scouleri, H. umbellatum
Synonyms Hieracium gracile, Hieracium gracile var. densifloccosum, Hieracium gracile var. gracile, Hieracium triste var. gracile
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