Flora of North America species comparison

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

rootstocks, erect, rarely branched, (smooth or papillose), bearing erect shoots and axillary rosettes.

erect, usually simple, 5–10(–15) cm;

leaf blades triangular-ovate, base short-spurred;

offsets not formed.

erect, simple, 5–10 cm, (sometimes papillose distally);

leaf blades oblanceolate-elliptic, oblanceolate-oblong, or spatulate, base short-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 green or yellow-green, sometimes glaucous, obovate or oblong-spatulate, laminar, 9.5–15 × 1.5–3.5 mm, base spurred, not scarious, apex rounded to obtuse, (surfaces papillose).

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

branches not recurved, rarely forked;

bracts similar to leaves, smaller.

3-parted cymes, (4–)10–27-flowered, 1–3-branched, sometimes monochasially;

branches ± arched, spreading, or sometimes recurved, sometimes forked;

bracts similar to leaves, smaller.

absent or to 1 mm.

1–3.5 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 to spreading, distinct basally, yellow-green to yellow, lanceolate-linear or clavate-oblong, unequal, 4.5–12 × 1.4–2.6 mm, apex acute or obtuse, (papillose);

petals erect, curving upward distally, distinct, rarely slightly connate, white streaked with pink, lanceolate-elliptic, not carinate, 5–8 mm, apex obtuse, with minute mucronate appendage;

filaments white;

anthers purple or brown;

nectar scales yellow or creamy white, square.

stellately patent in fruit, distinct, yellowish.

erect in fruit, distinct, pale brown.

= 40, 60, 80, 100, 120.

= 28, 30, 32, (34), 58, 64.