Flora of North America species comparison

erect or slightly basally ascending, hirsute or hirsuto-villous to strigose or glabrate, eglandular.

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.

basal (persistent) and cauline;

basal blades oblanceolate to oblanceolate-spatulate, 40–150 × 3–15 mm, margins usually entire, sometimes shallowly dentate, faces hirsute or hirsuto-villous to sparsely strigose or glabrate, eglandular;

cauline blades usually becoming lanceolate, abruptly or gradually reduced distally (bases sometimes subclasping).

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.

5–9 × 10–20 mm.

3–5 × 6–13 mm.

125–175;

corollas white to pink or blue, 8–15 mm, laminae (nearly filiform) coiling tardily at tips.

40–125;

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

4–5.5 mm.

2–3.5 mm.

in (2–)3–4 series (greenish), hirsute to strigose, eglandular.

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

1–15.

1(–3, on proximal branches).

1.2–1.5 mm, 2-nerved, faces sparsely strigose;

pappi: outer of setae, inner of 16–20 bristles.

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

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

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

= 18, 27, 36, 45, 54.