Flora of North America species comparison

ascending, simple or branched, sometimes bearing rosettes.

erect, simple, 6–23 cm;

leaf blades linear, base with 2 sagittate spurs (unique in this species);

offsets not formed.

alternate, spreading, sessile;

blade pale yellow-green, not glaucous, linear to oblanceolate or spatulate, subterete, 5–32 × 1.5–5 mm, base sagittately short-spurred, not scarious, apex obtuse to rounded, (surfaces papillose in rosette).

cymes, 10–40-flowered, 3-branched;

branches secund or recurved, not forked;

bracts absent or similar to leaves, smaller.

to 1 mm.

4(–7)-merous;

sepals erect, distinct, light green, linear-lanceolate, unequal, 1.3–5.8 × 0.5–1.5 mm, apex acute or obtuse;

petals erect or subdivergent, distinct, white to purple, narrowly linear-lanceolate or elliptic-lanceolate, carinate and slightly channeled basally, 4–10 mm, apex acute or obtuse;

filaments white or pinkish;

anthers red or purple;

nectar scales white, pinkish white, or yellow, square.

spreading in fruit, distinct, light brown.

= 22, ca. 42.