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Scouler's hawkweed, woolly weed

Greene's hawkweed

Habit Plants 30–100 cm; taprooted. Plants 10–60 cm; taprooted.
Stems

simple or branched;

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

erect; simple or branched, tomentulose, sometimes pilose near base.

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.

basal and sometimes 1 cauline, oblanceolate, 3–15 cm;

margins mostly entire; some usually blunt-toothed;

tips usually acute;

surfaces densely pilose-hispid;

petioles sometimes winged.

Inflorescences

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

panicle-like arrays, bracteate.

Involucres

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

cylindric in flower and fruit, 9–12 mm.

Florets

15–45+;

ligules 8–20 mm, yellow.

5–10+;

ligules 8–10 mm, yellow.

Phyllaries

linear-lanceolate;

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

linear-lanceolate;

surfaces lightly to moderately tomentulose; inner 6–10; outer gradually shorter.

Fruits

columnar, 2.5–3 mm, dark brown.

columnar, 3–3.5 mm, dark brown.

2n

=18.

=18.

Hieracium scouleri

Hieracium greenei

Distribution
[WildflowerSearch map]
[BONAP county map]
[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.

Rocky slopes and outcrops, roadcuts, forest openings. Flowering Jun–Aug. 600–2500 m. Casc, ECas, Sisk. CA. Native.

Occasional specimens are suggestive of hybridization with Hieracium bolanderi. The molecular phylogenetic studies by Gaskin and Wilson (2007) placed H. greenei as the sister taxon to H. parryi.

Source Flora of Oregon, volume 2 draft
Kenton Chambers
Flora of Oregon, volume 2, page 289
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
H. albiflorum, H. aurantiacum, H. bolanderi, H. caespitosum, H. horridum, H. lachenalii, H. longiberbe, H. murorum, H. parryi, H. pilosella, H. piloselloides, H. sabaudum, H. scouleri, H. triste, H. umbellatum
Synonyms Hieracium albertinum, Hieracium chapacanum, Hieracium cusickii, Hieracium cynoglossoides, Hieracium nudicaule, Hieracium scouleri var. albertinum, Hieracium scouleri var. scouleri
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