Flora of North America species comparison

decumbent, branched, bearing terminal rosettes.

procumbent, becoming erect, (reddish-shiny proximally), long-branched, not bearing rosettes.

erect, branched, 10–43 cm;

leaf blades linear, base with scarious spurs;

offsets rosettes, produced from axils of leaves and bracts.

erect, simple or branched, 2–4 cm;

leaf blades orbiculate to broadly ovate, base not spurred;

offsets not formed.

alternate, spreading to erect, sessile;

blade green, not glaucous, linear to elliptic-oblong (subulate when dry), subterete, 4.3–13.8 × 1.4–2.7 mm, base (persistent), spurred (spur simple, small), scarious, apex acute, (surfaces sometimes papillose marginally).

alternate, (densely set), erect to slightly spreading, sessile;

blade green with prominent red dots, not glaucous, sometimes waxy, orbiculate to broadly obovate, semiterete, 2.5–3.5(–5) × 2–2.5 mm, base not spurred, not scarious, apex rounded to acute.

solitary flowers or cymes, 9–15(–25)-flowered, mostly 3-branched;

branches slightly recurved, not forked;

bracts linear-lanceolate, smaller than leaves, base spurred.

subscorpioid cymes, 10–20-flowered, simple to 2-branched;

branches erect to spreading or recurved, sometimes forked;

bracts oblong, ca. 3 mm, base broadly spurred.

absent or to 0.5 mm.

absent.

5-merous;

sepals erect, distinct, pale green or yellow-green, lanceolate or ovate, equal, 2–3.7 × 0.9–1.7 mm, apex acute or long-acuminate;

petals stellately spreading, distinct, deep yellow with green to brown dorsal keel to almost white, lanceolate or elliptic, slightly carinate, 5.4–8 mm, apex obtuse, acute, or long-acuminate, sometimes with aristate appendage;

filaments yellow;

anthers yellow;

nectar scales greenish yellow or yellowish white, reniform-subquadrate or square.

5-merous;

sepals suberect, distinct basally, greenish, sometimes with reddish striations, subovate, unequal, 2–2.5 × 0.1–1.6 mm, apex obtuse, (papillose);

petals erect to spreading, distinct, yellow with prominent, short, longitudinal red stripes, lanceolate, carinate, 4.5–5 mm, apex subobtuse, narrowly mucronate;

filaments whitish or pale yellow;

anthers yellow;

nectar scales inconspicuous.

divergent in fruit, shortly connate, pale green, yellow-green, or brown.

spreading in fruit, distinct, tan or brown with reddish striations.

= 50–54, 58, 62–70, 63–64.

= 52, 53, 104.