Flora of North America species comparison

rhizomes, horizontal, much-branched, bearing rosettes.

decumbent, lateral branches from proximal axils, rosettes formed in proximal axils (giving rise to flowering shoots).

erect, simple, (6–)10–28 cm;

leaf blades suborbiculate or obovate, base not spurred;

offsets not formed.

ascending, appearing angled when dry, simple or branched, 4.7–6 cm;

leaf blades elliptic-oblong or oblanceolate, base not spurred;

offsets axillary rosettes only basally.

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, (loosely imbricate), divergent, sessile;

blade green, not glaucous, obovate or elliptic, rarely lanceolate, subterete, 4.7–7.5 × 2.5–3.4 mm, base not spurred, not scarious, apex obtuse, (surfaces finely papillose marginally).

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

branches not recurved, dichotomously forked;

bracts similar to leaves, smaller.

cymes, 3–15-flowered, 2–3-branched;

branches not or only slightly recurved, not forked;

bracts (2–3), similar to leaves, smaller.

2–5 mm.

absent or to 0.1 mm.

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.

5-merous;

sepals erect, basally connate, yellow-green, ovate, equal, ca. 2 × 15 mm, apex acute or obtuse;

petals widely spreading, distinct, yellowish green, lanceolate-elliptic, not carinate, 5–6.5 mm, apex acute with minute mucronate appendage;

filaments yellow;

anthers yellow;

nectar scales yellow to orange, rarely pale yellow to greenish white, square or ± square.

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

widely divergent in fruit, connate basally, brown.

= 90.

= 32, 43–51, 45–54, 50.