Flora of North America species comparison

rhizomes, horizontal, much-branched, bearing rosettes.

creeping, much-branched, forming terminal rosettes on branches (primary rosettes usually 1–2.7 cm diam.).

erect, simple, (6–)10–28 cm;

leaf blades suborbiculate or obovate, base not spurred;

offsets not formed.

erect, simple, 3.5–17.5 cm;

leaf blades narrowly oblong to linear, base short-spurred;

offsets not formed.

alternate, ascending to spreading, sessile to subsessile;

blade green, glaucous, not strongly pruinose, obovate or oblanceolate, subterete, 10–36 × 5–16 mm, base not spurred, not scarious, apex emarginate to retuse.

alternate, spreading to ascending, petiolate;

blade pale green or blue-green, usually glaucous, oblanceolate to spatulate, laminar, (6–)10–18 × 1–4.5 mm, base petiolelike, with simple, short spur, not scarious, apex obtuse, (surfaces papillose).

panicles, 10–120-flowered, 3–20-branched;

branches not recurved, dichotomously forked;

bracts similar to leaves, smaller.

cymes, 5–30-flowered, 3-branched;

branches erect or only slightly recurved, sometimes forked;

bracts similar to leaves, smaller.

2–5 mm.

absent.

5-merous;

sepals (persistent, closely appressed to corolla tube), erect, connate basally, greenish, ovate, equal, 3.2–3.5 × 1–3 mm, apex subacute;

petals (persistent until fruiting), erect basally, divergent apically, connate basally, creamy white, yellowish white, or pale yellow, elliptic-oblong or oblanceolate-oblong, cucullate, 5–9(–11.5) mm, apex abruptly pointed;

filaments pale yellow;

anthers yellow;

nectar scales white or yellow, subreniform.

4-merous;

sepals divergent, distinct, green, linear-lanceolate, unequal, 3.6–6.3 × 0.9–1.6 mm, apex obtuse, (papillose);

petals spreading, distinct, white, lanceolate, minutely hooded, 4–9 mm, apex acuminate;

filaments white;

anthers dark red to almost purple;

nectar scales white, subquadrate.

erect in fruit, distinct, brown, (strongly 5-veined).

widely divergent in fruit, slightly connate basally, brown.

= 90.

= 28, 44, 45–49.