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kirilow's indigo

Habit 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.

Racemes

40–60+-flowered, dense, 7–8.5 cm.

Peduncles

2–3 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.

Indigofera kirilowii

Phenology Flowering May–Oct.
Habitat Ruderal areas, edges of woods.
Elevation 100–150 m. (300–500 ft.)
Distribution
from FNA
TN; Asia (China, Japan, Korea) [Introduced in North America]
[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Indigofera
Sibling taxa
I. caroliniana, I. colutea, I. decora, I. hirsuta, I. lindheimeriana, I. miniata, I. oxycarpa, I. pilosa, I. sphaerocarpa, I. spicata, I. suffruticosa, I. texana, I. tinctoria
Name authority Maximowicz ex Palibin: Trudy Glavn. Bot. Sada 17: 62, plate 4. (1898)
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