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woolly goldenweed, woolly mock goldenweed, woolly stenotus

Habit Plants loosely cespitose, 4–31 cm; taproots branched, poorly developed.
Stems

villous to lanate, eglandular or densely stipitate-glandular.

Leaves

basal;

petioles slender;

blades 3-nerved, linear to narrowly oblanceolate or spatulate, 24–70(–100) × 1.5–9 mm, pliable (abaxial faces ± plane), bases attenuate, margins eciliate, eglandular, apices acute to obtuse, faces villous to lanate (trichomes multicellular), or glabrous adaxially, and/or stipitate-glandular.

Peduncles

20–155 mm, usually lanate at least immediately proximal to heads, sometimes stipitate-glandular.

Involucres

broadly campanulate to hemispheric, 13–28 × 9–15 mm.

Ray florets

9–17;

laminae elliptic, 8–14 × 2.5–7 mm.

Disc florets

30–45(–57);

corollas funnelform to narrowly vase-shaped, 5.5–8.5 mm, tubes sparsely hairy, lobes 0.7–1.4 mm, ca. 1/8–1/6 length of corollas;

anthers 2.5–3 mm, style-branch appendages subulate to broadly lanceolate, 0.6–1.4 × 0.7 mm, stigmatic lines 0.6–1.8 mm, lengths nearly 2 times appendages.

Phyllaries

18–37(–64) in 2–3 series, 1- or 3-nerved, scarcely unequal, outer lanceolate to narrowly oblong, 7.5–11.5 × 1–3 mm, mid and inner lanceolate, 8–12.5 × 1–4 mm, proximally rather indurate, distally herbaceous and pliable, margins scarious, sometimes broadly so, often fimbriate, wholly green except for margins or with narrow green portions longer than broad, apices acute to acuminate, abaxial faces villous and/or stipitate-glandular.

Heads

borne singly.

Cypselae

2.5–5(–6.5) mm, lengths 2/3 disc corollas, faces thinly sericeous;

pappus bristles 40–50, 5–9.5 mm, nearly equaling to slightly longer than disc corollas.

Stenotus lanuginosus

Distribution
from FNA
CA; ID; NV; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Mid phyllaries 2–4 mm wide, scarious margins 0.3–0.7 mm; peduncles lanate proximal to heads, eglandular to sparsely stipitate-glandular
var. lanuginosus
1. Mid phyllaries 1–2.2(–2.4) mm wide, scarious margins 0–0.2 mm; peduncles villous or glabrous proximal to heads (rarely lanate), usually sparsely to densely stipitate-glandular (rarely eglandular)
var. andersonii
Source FNA vol. 20, p. 176.
Parent taxa Asteraceae > tribe Astereae > Stenotus
Sibling taxa
S. acaulis, S. armerioides
Subordinate taxa
S. lanuginosus var. andersonii, S. lanuginosus var. lanuginosus
Synonyms Haplopappus lanuginosus
Name authority (A. Gray) Greene: Erythea 2: 72. (1894)
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