Flora of North America species comparison

trailing (nonflowering shoots ascending at tip), laxly branched, not bearing rosettes.

root-stocks, horizontal, branched, bearing terminal rosettes.

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

erect, mostly simple, 16–25 cm;

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

offsets not formed.

(usually deciduous, if persistent, then blade white, soft, papery), alternate, (densely imbricate), spreading, sessile;

blade yellow-green, not glaucous, triangular-ovate, terete to semiterete (elliptic in cross section), (2–)5(–8) × 1–4 mm, base obtusely short-spurred, not scarious, apex obtuse.

alternate, spreading to ascending, sessile;

blade blue-green with white margins (unique in flora area), glaucous, oblanceolate, oblanceolate-oblong, or spatulate, laminar, (14–)28–67 × (5–)11(–18) mm, base not spurred, not scarious, (margins somewhat erose), apex widely rounded or truncate, sometimes emarginate.

cymes, 2–12-flowered or flowers solitary, monochasially (1–)2(–3)-branched;

branches not recurved, rarely forked;

bracts similar to leaves, smaller.

elongated, paniculate cymes, 20–55-flowered, 3–15-branched;

branches not recurved, forked;

bracts similar to leaves, smaller.

absent or to 1 mm.

3–5(–8) mm.

5-merous;

sepals erect to spreading, distinct basally, green, oblong-ovate, unequal, 2–3 × 1.3–2.3, mm, apex obtuse;

petals spreading, distinct, bright yellow, oblong-ovate to lanceolate, not carinate, 5–9 mm, apex acute to acuminate;

filaments yellow;

anthers yellow, (oblong);

nectar scales yellowish green, square.

5-merous;

sepals erect, connate basally, green or sometimes slightly glaucous, lanceolate, equal, ca. 4.5 × 2.5 mm, apex acute or subacute, (sometimes minutely papillose-ciliate);

petals erect proximally, slightly spreading distally, (imbricate), connate basally, yellow, oblanceolate-oblong, often with minute, mucronate appendage, not carinate, ca. 9.5 mm, (distal margins erose), apex acute or obtuse;

filaments pale green;

anthers yellow;

nectar scales white, transversely oblong.

stellately patent in fruit, distinct, yellowish.

suberect, distinct, brown.

= 40, 60, 80, 100, 120.

= 30.