Greene's Hawkweed

Plants 10–35(–45+) cm. Stems proximally stellate-pubescent, rarely piloso-hirsute (hairs 1–3+ mm), distally usually densely, sometimes sparsely, stellate-pubescent. Leaves: basal 5–8+, cauline 2–3(–5+); blades spatulate to oblanceolate, 35–80(–150) × 8–15(–25) mm, lengths 2.5–5 times widths, bases ± cuneate, margins usually entire, rarely denticulate, apices rounded to acute, abaxial faces piloso-hirsute (hairs 2–3+ mm) and stellate-pubescent, sometimes stipitate-glandular as well, adaxial piloso-hirsute (hairs 2–3+ mm) and stellate-pubescent. Heads (3–)8–25(–50+) in paniculiform arrays (divaricately branched). Peduncles densely to sparsely stellate-pubescent. Calyculi: bractlets 3–5+. Involucres cylindric, 9–12 mm. Phyllaries 7–8+, apices rounded to obtuse, abaxial faces sparsely to densely stellate-pubescent. Florets 4–10(–15+); corollas yellow, 8–10 mm. Cypselae columnar, 4–5 mm; pappi of 60–80, white or stramineous to rufous bristles in 2+ series, 7–9 mm.

Hieracium oregonicum Zahn

Hieracium greenei (not to be confused with Hieracium greenii) is a species of hawkweed known by the common name Greene's hawkweed.

Hieracium greenei is native to the forests of the Klamath Mountains and neighboring ranges in southern Oregon and northern California.

Hieracium greenei is a small hawkweed forming a basal rosette of densely hairy gray-green leaves, each 5 to 10 centimeters (2-4 inches) long and some with toothed edges. It bolts a thin, hairy stem which reaches 20 to 40 centimeters (8-16 inches) tall. The stem bears an inflorescence of several flower heads containing yellow ray flowers but no disc flowers. The fruit is a ribbed achene about half a centimeter (0.2 inches) long with a light brown pappus.