Flora of North America species comparison

creeping and short-ascending, much-branched, (densely glandular-pubescent basally), not bearing rosettes.

± procumbent, branched, (glabrous or glandular-hairy), not bearing rosettes.

erect, simple or branched, 5–18(–30) cm, (glabrous or sparsely hairy);

leaf blades linear to ovate, base scarcely spurred;

offsets not formed.

erect (or ascending), simple, 15–40 cm, (glabrous or glandular-hairy);

leaf blades linear-lanceolate, base spurred;

offsets not formed.

alternate, patent or appressed, sessile;

blade green, often reddish, not glaucous, linear to ovate, subterete but adaxial surface somewhat flattened, 4–20(–25) × 1–20 mm, base scarcely spurred, not scarious, apex obtuse or rounded, (surfaces glabrous or sparsely hairy).

alternate, (imbricate), erect, sessile;

blade green, sometimes glaucous, linear-lanceolate, terete, 10–15 × 1–2.5 mm, base spurred, not scarious, apex mucronate, (surfaces glabrous).

paniculate cymes, 15–50+-flowered, 3–5-branched;

branches reflexed, forked;

bracts similar to leaves, smaller.

terminal corymbiform cymes (erect and flat-topped in bud), 10–50+-flowered, 3–5-branched;

branches scarcely recurved, sometimes forked;

bracts similar to leaves, glandular-pubescent.

3–5 mm.

to 1 mm.

5-merous;

sepals erect, connate basally, green, ovate to triangular, equal, 0.5–1.5 × 0.2–0.5 mm, apex acute, (glabrous or sparsely and minutely puberulent);

petals spreading, distinct, white or rarely pink, lanceolate, not carinate, 2–4.5 mm, apex subacute;

filaments white;

anthers red;

nectar scales white or yellow, spatulate.

(5–)6–8-merous;

sepals erect, connate basally, gray-green, lanceolate, equal, 3–6 × 1–2 mm, apex long-acuminate, (densely glandular-pubescent);

petals erect or suberect, distinct, yellowish, lanceolate, carinate, 8–10 mm, apex acute;

filaments white, (glabrous);

anthers yellow;

nectar scales greenish, square.

erect in fruit, distinct, whitish.

erect in fruit, connate basally, brown.

= 34, 51, 68, 85, 102, 136.

= 34, 68, 102.