Flora of North America species comparison

rootstocks, decumbent and ascending, branched, (sometimes papillose), bearing terminal rosettes and above ground shoots.

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

erect, simple or branched, 3–18 cm;

leaf blades elliptic-lanceolate, base short-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.

(not easily detached), alternate, spreading-erect to erect or ascending, sessile;

blade dull gray-green or bluish green, green, or reddish green, often glaucous, lanceolate, elliptic-lanceolate, or elliptic-ovate, subterete, 4.2–13 × 1.5–3.5 mm, base very short-spurred, base of withered blade at times becoming scarious, apex obtuse or obtusely apiculate, (surfaces papillose).

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).

cymes, 5–25-flowered, (1–)3(–6)-branched;

branches ascending, spreading to erect, or recurved, forked;

bracts similar to leaves.

cymes, 3–15-flowered, 2–3-branched;

branches not or only slightly recurved, not forked;

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

absent or to 3 mm.

absent or to 0.1 mm.

5-merous;

sepals erect, connate basally, pale green to yellow-green, ovate or lanceolate, equal, 2–5 × 1–2 mm, apex acute or, rarely, obtuse, (often papillose);

petals widely spreading from suberect base, distinct, canary to golden yellow, lanceolate, elliptic-lanceolate, or linear-lanceolate, canaliculate, 6–9.2 mm, apex acute to acuminate with minute mucronate appendage;

filaments yellow;

anthers yellow, sometimes suffused with red;

nectar scales deep yellow to yellow-green, obovately square.

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, basally connate, brown.

widely divergent in fruit, connate basally, brown.

= 16.

= 32, 43–51, 45–54, 50.