Flora of North America species comparison

root-stocks, ascending, much-branched, bearing rosettes.

erect or ascending, simple or much-branched, (glandular-hairy), not bearing rosettes.

erect or decumbent, simple or branched, 4–30(–40) cm;

leaf blades oblanceolate, spatulate, obovate, or suborbiculate, base not spurred;

offsets not formed.

spreading or erect, simple, 5–15 cm, (glabrous or with scattered glandular hairs);

leaf blades linear to oblong, base not spurred;

offsets not formed.

alternate, erect to spreading, sessile;

blade green, glaucous or not, not pruinose, oblanceolate, spatulate, or obovate, subterete or somewhat flattened, 10–50 × (4.5–)6–33 mm, base not spurred, not scarious, apex truncate to rounded or obtuse, emarginate or barely notched.

alternate, ascending, sessile;

blade green, sometimes glaucous, linear to oblong, semiterete or ± laminar, 4–20 × 1–2 mm, base not spurred, not scarious, apex obtuse, (surfaces usually glabrous or, rarely, glandular-hairy).

elongate, paniculate cymes, 12–80-flowered, monochasially 3+-branched;

branches not recurved, 2-forked;

bracts similar to leaves, smaller.

lax to ± dense cymes, 2–8-flowered or flowers solitary, 2–4-branched;

branches not recurved, not forked;

bracts similar to leaves, smaller.

0.6–6.3 mm.

to 0.5 mm.

5-merous;

sepals erect, (closely appressed to corolla tube), slightly connate basally, pale green, ovate or lanceolate, equal, (2–)2.6–5.1 × 2 mm, apex acute or subacute, (rarely obtuse in var. flavidum);

petals basally erect, divergent in distal 1/2, connate basally, pink, pinkish white, or white to yellowish white, lanceolate-oblong, oblanceolate-oblong, or elliptic-oblong, not carinate, 4–11 mm, apex obtuse, shortly mucronate or aristate;

filaments white, greenish white, or pink;

anthers red, reddish purple, red-brown, or yellow;

nectar scales white, yellow, or pink, reniform or transversely oblong.

5–9-merous;

sepals erect, connate basally, green, broadly triangular, equal, ca. 2 × 1 mm, apex acute, (glandular-pubescent);

petals spreading, distinct, white with pinkish midvein, lanceolate, not carinate, 4–5(–7) mm, apex narrowly acuminate;

filaments white;

anthers dark purple;

nectar scales white, spatulate-quadrate.

erect in fruit, distinct, brown.

stellate-spreading in fruit, connate basally, white or pale pink.

= 40.