Flora of North America species comparison

cylindrical, 3–6 mm diam., (distinctly constricted at intervals, non-uniform diam., fleshy, slightly fragile, with dentate leaf scars).

erect, unbranched, 0.9–3(–4) dm.

3-foliolate, 7–20 cm, leaflets petiolulate or subsessile;

petiole 4–15 cm;

lateral leaflets subsessile or petiolulate, blade often similar to terminal, base often oblique;

terminal leaflet (petiolule 0.2–1(–1.7) cm), blade broadly ovate to oblong, 2–7.5 cm × 12–37 mm, base cuneate to obtuse, margins coarsely dentate to sharply incised, or deeply cleft into 2 or 3 lobes (lobes dentate or incised, margins puberulent).

2 or 3, 3-foliolate, (rarely subopposite), petiolate, leaflets petiolulate or subsessile;

petiole (0.5–)1–4(–6.5) cm, base not auriculate;

lateral and terminal leaflets similar to rhizomal, distalmost sometimes much smaller.

(rarely absent), usually petiolate, sometimes sessile;

blade (simple or compound), base auriculate or not, margins entire or dentate to pinnately lobed.

ebracteate.

usually ebracteate (Selenia bracteate throughout), often elongated in fruit.

sepals (erect to ascending), oblong, 5–7 × 2–3 mm, lateral pair slightly saccate basally;

petals white or pink, oblanceolate, 10–17 × 3–6 mm, (not clawed, apex rounded);

filaments: median pairs 4–8 mm, lateral pair 3–6.5 mm;

anthers linear, 1.7–2.7 mm.

actinomorphic;

sepals erect to spreading or ascending, lateral pair seldom saccate basally;

petals white, yellow, pink, lilac, or purple, claw usually present, rarely absent, often distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

(flowering ones) horizontal to divaricate or deflexed, 7–20 mm.

(undeveloped), linear-lanceolate, to 3 cm × 2 mm;

ovules 10–14 per ovary;

style 3.5–7 mm.

silicles or siliques, dehiscent, unsegmented, terete, 4-angled, or latiseptate, rarely angustiseptate;

ovules 4–300[–numerous] per ovary;

style distinct or obsolete (absent in Subularia);

stigma usually entire.

not known.

biseriate or uniseriate;

cotyledons usually accumbent, sometimes incumbent.

absent or simple.

= 120, 124, 132, 138, 156, 161, ca. 208.