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goat's-rue, Virginia tephrosia, wild goat's-rue

Habit Herbs.
Stems

erect, 30–70 cm, densely villous or sericeous to sparsely strigulose or glabrate.

Leaves

petiole 1–5(–10) mm;

leaflets (9–)13–23(–35), blades elliptic to oblong, 10–25(–30) × (3–)4–7 mm, length 2–5(–6) times width, apex obtuse or rounded to truncate, surfaces strigose to sericeous.

Racemes

10–40-flowered, 2–8 cm, mostly above level of leaves;

floral bracts caducous, setaceous.

Flowers

corolla yellow and pink (banner yellow, wings pink, keel yellow-pink striped), 15–20 mm;

stamens monadelphous;

style bearded.

Legumes

30–55 × 4–5 mm, strigose to villous.

2n

= 22.

Tephrosia virginiana

Phenology Flowering May–Jun(–Aug).
Habitat Sandhills, pinelands, dry, sandy oak-pine savannas, xeric and/or rocky wood­lands and forests, outcrops, barrens, dry roadbanks.
Elevation 50–700 m. (200–2300 ft.)
Distribution
from FNA
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; ME; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; WI; WV; ON
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[BONAP county map]
Discussion

Tephrosia virginiana is the only member of the genus that occurs in Canada, where it is known only from the vicinity of Turkey Point in southern Ontario.

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

Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Tephrosia
Sibling taxa
T. angustissima, T. chrysophylla, T. corallicola, T. curtissii, T. florida, T. hispidula, T. leiocarpa, T. lindheimeri, T. mohrii, T. mysteriosa, T. onobrychoides, T. potosina, T. rugelii, T. spicata, T. tenella, T. thurberi
Synonyms Cracca virginiana, T. latidens, T. virginiana var. glabra, T. virginiana var. holosericea, T. virginica
Name authority (Linnaeus) Persoon: Syn. Pl. 2: 329. (1807)
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