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Lindheimer's indigo

Habit Herbs, perennial, suffrutescent, cinereous-pubescent, hairs silvery greenish, appressed or ascending.
Stems

erect, several from rootstock, sparsely branched distally, 5–15 dm.

Leaves

8.5–10.5 cm;

stipules sometimes clusters of hairs, 0.5–2 mm;

petiole 1–1.5 cm;

stipels 0.5–1 mm;

petiolules 0.5–1 mm;

leaflets 7–15, opposite, blades obovate, narrowly or broadly oblanceolate, or elliptic, 8–16 × 4–8 mm, base cuneate, apex acute to obtuse, apiculate, surfaces densely pubescent.

Racemes

8–30+-flowered, lax, 5–12 cm.

Peduncles

0.8–1.2 cm.

Pedicels

1 mm.

Flowers

6–8 mm;

calyx 1.5–2 mm, lobes narrowly triangular;

corolla reddish.

Legumes

brown, divergent or reflexed, cylindric, straight or slightly curved to falcate, 18–25 mm, leathery, base bulbous and reddish, cinereous-pubescent.

Seeds

4–6, brown, cuboid.

2n

= 16.

Indigofera lindheimeriana

Phenology Flowering May–Sep.
Habitat River and creek bottoms or banks, dry beds, limestone, roadsides.
Elevation 200–1300 m. (700–4300 ft.)
Distribution
from FNA
TX; Mexico (Coahuila, Nuevo León)
[BONAP county map]
Discussion

Indigofera lindheimeriana is found in the flora area in southwest Texas, from its eastern extent in Comal and Llano counties west to Brewster and Terrell counties.

(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. kirilowii, I. miniata, I. oxycarpa, I. pilosa, I. sphaerocarpa, I. spicata, I. suffruticosa, I. texana, I. tinctoria
Synonyms Anila lindheimeriana
Name authority Scheele: Linnaea 21: 464. (1848)
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