Flora of North America species comparison

first erect (greenish proximally; usually single, simple), then producing herbaceous, leafy, prostrate runners (usually with rooting plantlets at tips, populations often becoming clonal mats), strigose (often sparsely; hairs antrorsely appressed, consistent in orientation), sometimes slightly glandular distally.

erect, sometimes branched, hirsute (hairs unequal), ± minutely glandular.

basal (often persistent) and cauline;

basal blades broadly oblanceolate to elliptic, 20–55 × 3–9 mm;

cauline abruptly reduced distally, margins entire or dentate, faces strigose, eglandular.

mostly basal (persistent; petioles prominently ciliate, hairs spreading, thick-based);

blades narrowly oblanceolate to spatulate, (20–)30–80 × 2–4(–12) mm, cauline sometimes continuing distally to about midstem, margins entire, usually ciliate, sometimes coarsely so, faces sparsely to densely hirsute, sometimes minutely glandular.

3–5 × 6–13 mm.

5–9 × 9–20 mm.

40–125;

corollas white, often with an abaxial midstripe, often drying lilac, 4–10 mm, laminae not coiling or reflexing.

15–45 or 0;

corollas usually pink to bluish purple, sometimes white, 5–14 mm, laminae coiling.

2–3.5 mm.

(3.5–)4–5.5 mm.

in 2–3 series, strigose to loosely hirsute, minutely glandular.

in 2–3 series, sparsely to densely hirsuto-villous to hirsute, minutely glandular.

1(–3, on proximal branches).

1(–3) (from branches at or proximal to midstem).

0.8–1.3 mm, 2-nerved, faces sparsely strigose;

pappi: outer of setae, inner of 10–17 bristles.

2.5–3 mm, 2-nerved, faces densely strigoso-sericeous (obscured);

pappi: outer of setae, inner of 20–30 bristles.

or short-lived perennials, 3–15 cm; usually fibrous-rooted, sometimes taprooted, caudices lignescent, rarely branched.

= 18, 27, 36, 45, 54.