Flora of North America species comparison

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Astragalus nuttallianus var. zapatanus
Photo is of parent taxon

loredo milkvetch, turkeypeas
Habit Plants hirsutulous, hairs 0.4–0.8 mm.
Stems

2–30 cm.
Leaves

1.5–4.5(–5) cm;

leaflets (7 or)9–17, blades narrowly cuneate to oblong, oval, or oblong-cuneate, apex retuse or deeply emarginate.
Racemes

1–4-flowered;

axis very short in fruit.
Peduncles

(0.2–)0.5–4.5 cm.
Flowers

calyx 3–4.6 mm, pilosulous, tube 1.6–2.7 mm, lobes 1.5–2.1 mm;

corolla banner (4–)4.9–6.7 mm;

keel apex triangular, slightly beaklike.
Legumes

13–18 × 2.6–3.2 mm, loosely strigulose.
Seeds

10–16.

Astragalus nuttallianus var. zapatanus
Phenology Flowering Feb–Mar.
Habitat Sandy, frequently disturbed sites.
Elevation 0–200 m. (0–700 ft.)
Distribution
from FNA
TX; Mexico (Tamaulipas)
[BONAP county map]
Discussion

Variety zapatanus occurs in the lower Rio Grande Valley from Laredo to the Gulf Coast and into northeastern Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Leptocarpi > Astragalus nuttallianus
Sibling taxa
A. nuttallianus var. austrinus, A. nuttallianus var. cedrosensis, A. nuttallianus var. imperfectus, A. nuttallianus var. macilentus, A. nuttallianus var. micranthiformis, A. nuttallianus var. nuttallianus, A. nuttallianus var. pleianthus, A. nuttallianus var. trichocarpus
Name authority Barneby: Field & Lab. 24: 36. (1956)
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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