Indigofera kirilowii

Shrubs, pubescent, hairs sparse, appressed. Stems erect, arching, branched, 3–10 dm. Leaves 6–15 cm; stipules narrowly long-triangular, attenuate, 4–6 mm; petiole 0.1–2.5(–3) cm; stipels 2–3 mm; petiolules 2–2.5 mm; leaflets (5 or)7–11, opposite, blades broadly ovate, ovate-rhombic, or elliptic, 15–40(–50) × 10–23(–30) mm, base cuneate to broadly cuneate, apex rounded to acute, surfaces appressed-pubescent, pale abaxially. Peduncles 2–3 cm. Racemes 40–60+-flowered, dense, 7–8.5 cm. Pedicels 3–5 mm, glabrous. Flowers 12–14(–18) mm; calyx 2.5–4 mm, lobes triangular; corolla usually pink, rarely white. Legumes brown, deflexed, cylindric, straight, 35–70 mm, leathery, glabrous. Seeds 8–12, reddish brown, ellipsoidal. 2n = 16.

Phenology: Flowering May–Oct.
Habitat: Ruderal areas, edges of woods.
Elevation: 100–150 m.

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Introduced; Tenn., Asia (China, Japan, Korea).

Discussion

Indigofera kirilowii has been in cultivation in the United States since about 1899 (A. J. Rehder 1940). It is known in the flora area only from Madison County.

Selected References

None.

Lower Taxa