OregonFlora species comparison

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Hieracium scouleri

Scouler's hawkweed, woolly weed
Habit Plants 30–100 cm; taprooted.
Stems

simple or branched;

surfaces glabrous to tomentulose, puberulent, or pilose-setose, sometimes glandular-setose distally.
Leaves

basal or basal and cauline, narrowly or broadly oblanceolate or elliptic, 2.5–30 cm, bases attenuate;

margins entire, rarely denticulate;

surfaces pilose-setose and stellate-pubescent, rarely glabrous;

basal petioles often winged;

cauline usually sessile.
Inflorescences

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

campanulate in flower; ovoid in fruit, 5–12 mm.
Florets

15–45+;

ligules 8–20 mm, yellow.
Phyllaries

linear-lanceolate;

surfaces pilose-setose with black hairs; inner 12–20+; outer gradually shorter.
Fruits

columnar, 2.5–3 mm, dark brown.
2n

=18.

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

Forests, shrublands, grasslands, rocky ridges and slopes, roadsides. Flowering Jun–Sep. 0–2600 m. BR, BW, Casc, Col, ECas, Owy, Sisk, WV. CA, ID, NV, WA; north to British Co­lumbia, northeast to Alberta, east to WY. Native.

Hieracium scouleri is here given a broad circumscription to include such segregate taxa as H. albertinum and H. cynoglossoides, which are sometimes also recognized at varietal rank.
Source Flora of Oregon, volume 2 draft
Kenton Chambers
Sibling taxa
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. triste, H. umbellatum
Synonyms Hieracium albertinum, Hieracium chapacanum, Hieracium cusickii, Hieracium cynoglossoides, Hieracium nudicaule, Hieracium scouleri var. albertinum, Hieracium scouleri var. scouleri
Web links 
Unless otherwise noted, all data comes from OregonFlora.



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