Flora of North America species comparison

usually unbranched, sometimes branched (reddish purple);

hairs stalked, glandular throughout.

sparsely or profusely branched;

hairs stalked, glandular throughout.

petiole green to purple, subterete, (0.2–)1–3 cm;

leaflet blade (conduplicate), linear, 1–5 × 0.05–0.2 cm, margins entire, apex obtuse, mucronulate, surfaces sparsely glandular abaxially, glabrous or sparsely glandular adaxially, (fleshy).

petiole green to purple, angled, 1.5–4.5(–6) cm, (glandular);

leaflet blade broadly elliptic to oblanceolate, 2–4 × 1–2 cm, margins entire, apex obtuse, mucronulate, surfaces sparsely glandular.

1–3 cm (6–8 cm in fruit);

bracts trifoliate, elliptic, 5–15 mm.

5–20 cm (10–30 cm in fruit);

bracts unifoliate, ovate, 8–12 mm.

5–15 mm.

10–25(–40) mm.

sepals (reflexed), pale yellow, lanceolate to deltate, 1.6–2.6 × 0.7–1.2 mm, clawed, margins entire, apex acute to obtuse, glandular;

petals white, oblong-ovate, abaxial pair 1.5–3 × 1–2 mm (6 or 7-lobed), apex emarginate to lacerate, adaxial pair 3.5–5 × 2–3 mm (barely clawed, 4 or 5-lobed), apex emarginate to lacerate;

nectary glands yellow (drying purple), 0.5 mm;

stamens 8–13, slightly exserted, yellow, 3–6 mm;

anthers yellow with maroon tip, 1–2 mm;

gynophore 1.7–4 mm in fruit;

ovary 2.5–5(–7) mm;

style persistent in fruit, 2.5–4.5 mm;

stigma red.

sepals purple, oblong, 3–6 × 1.5–2.5 mm, margins entire, apex acuminate, glandular;

petals white, narrowly spatulate, clawed, abaxial pair 10–20 × 2–3(–5) mm, apex emarginate to lacerate, adaxial pair 15–30 × 3–5 mm, apex emarginate;

nectary glands bright orange, not conspicuous (in fruit);

stamens 20–27, exserted, purple, 20–50 mm;

anthers purple, 1–1.3 mm;

gynophore 0–2 mm in fruit;

ovary 5–10 mm;

style deciduous in fruit, 20–40 mm;

stigma purple.

40–60 × 2–4 mm, reticulate, glandular or glabrous.

(somewhat inflated), 60–100 × 7–10 mm, reticulate, glandular.

18–36, reddish brown, spheroidal, 0.7–0.9 mm, pebbled (without transverse ridges).

20–65, dark reddish brown, globose to oblong, 1.5–2 mm, smooth.

= 20.

= 20.