Flora of North America species comparison

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Tephrosia thurberi

Thurber's hoary-pea
Habit Herbs.
Stems

erect, 30–60 cm, hirsute to hirsute-villous.
Leaves

petiole 10–30(–40) mm;

leaflets (9–)11–27, blades elliptic to narrowly oblong, 15–30 × (5–)7–13 mm, length 2.5–3.5(–4) times width, apex obtuse to rounded, surfaces loosely strigose to sericeous.
Racemes

congested, 8–14-flowered, 2–4 cm;

floral bracts setaceous, caducous.
Flowers

corolla pink and pink-purple or yellowish, aging pink-purple, 15–18 mm;

stamens weakly diadelphous;

style bearded.
Legumes

30–60 × 4 mm, villosulous.

Tephrosia thurberi
Phenology Flowering Jun–Sep.
Habitat Oak or pine woodlands, roadsides.
Elevation 1600–2000 m. (5200–6600 ft.)
Distribution
from FNA
AZ; Mexico (Chihuahua, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Tephrosia thurberi is similar to T. virginiana but far disjunct and in a different biome. In the flora area, it is restricted to Cochise and Santa Cruz counties in southeastern Arizona.

(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. virginiana
Synonyms Cracca thurberi
Name authority (Rydberg) C. E. Wood: Rhodora 51: 265. (1949)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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