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devil's paintbrush, king-devil, orange hawkweed

Hieracium longiberbe

long-bearded hawkweed

Habit Plants 15–60 cm; taprooted, stoloniferous. Plants 10–60 cm; taprooted.
Stems

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

simple or branched, glabrous or pilose.

Leaves

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

margins entire;

tips acute or obtuse;

surfaces pilose-setose;

petioles short, winged.

cauline, rarely a few basal early, spatulate to oblanceolate, 5–15 cm, bases attenuate;

margins entire or rarely denticulate;

surfaces glabrous to lightly or densely pilose-setose, usually sessile.

Inflorescences

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

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

Involucres

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

campanulate in flower; ovoid in fruit, 7–10 mm.

Florets

25–100+;

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

12–30;

ligules 10–15 mm, yellow.

Phyllaries

linear-lanceolate;

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

linear-lanceolate;

surfaces densely long-setose with brown or black hairs; inner 10–16; outer gradually shorter.

Fruits

columnar, 1.2–2 mm, dark brown.

columnar, 3–4 mm, brown.

2n

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

Hieracium aurantiacum

Hieracium longiberbe

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.

Rocky slopes and cliffs, open woods. Flowering May–Aug. 0–600 m. Casc. WA. Native.

This species is limited to the Columbia River Gorge and its immediate vicinity. Its distinctive, densely pilose-setose involucres, lacking either tomentulose or stipitate-glandular pubescence, distinguish it from the closely allied species Hieracium scouleri, a widespread taxon whose numerous pubescence vari­ants are not correlated with any particular geographical areas. Hieracium longiberbe and H. scouleri were shown to be sister taxa in a molecular phylogenetic study by Gaskin and Wilson (2007).

Source Flora of Oregon, volume 2, page 288
Kenton Chambers
Flora of Oregon, volume 2, page 289
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. murorum, H. parryi, H. pilosella, H. piloselloides, H. sabaudum, H. scouleri, H. triste, H. umbellatum
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