The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

devil's paintbrush, king-devil, orange hawkweed

narrowleaf hawkweed, umbellate hawkweed

Habit Plants 15–60 cm; taprooted, stoloniferous. Plants 30–100+ cm; fibrous-rooted.
Stems

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

usually simple or few-branched, glabrous or with villous; hispid, or puberulent hairs, sometimes puberulent distally.

Leaves

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

margins entire;

tips acute or obtuse;

surfaces pilose-setose;

petioles short, winged.

cauline, elliptic-lanceolate, 2–10 cm, reduced upwards;

margins entire or remotely denticulate;

surfaces hispid, 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, broadly ovoid in fruit, 8–12 mm.

Florets

25–100+;

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

30–80+;

ligules 15–20 mm, yellow.

Phyllaries

linear-lanceolate;

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

linear-lanceolate;

surfaces glabrous; inner 12–22+; outer gradually shorter.

Fruits

columnar, 1.2–2 mm, dark brown.

columnar, 2–3 mm, dark brown.

2n

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

=18, 27.

Hieracium aurantiacum

Hieracium umbellatum

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.

Disturbed areas, roadsides, forest edges, thickets, sandy areas. Flowering Jun–Sep. 200–1600 m. WV. WA; north to AK, northeast to Greenland, east to MA, southeast to WV; Asia, Europe. 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. triste
Web links