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Photo is of parent taxon

painted milkvetch

Photo is of parent taxon

bradbury's milkvetch, painted milkvetch

Habit Plants with mostly malpighian hairs on stems and herbage. Plants with mostly basifixed hairs on stems and herbage.
Leaves

2–12 cm; usually 1–6 pairs of lateral leaflets proximally or throughout, distalmost often reduced to naked rachis.

2.5–17 cm;

sometimes 1 or 2 (or 3) pairs of lateral leaflets proximally, mostly reduced to filiform rachis throughout.

Racemes

6–15(–25)-flowered;

axis (1–)1.5–8(–15) cm in fruit.

2–7-flowered;

axis 1–4.5(–5.5) cm in fruit.

Flowers

6.3–8.3(–9.5) mm;

calyx 3.1–4.2 mm, tube 2.1–2.6(–3.3) mm, lobes 1–1.8 mm.

7.4–10.8 mm;

calyx (3.7–)4–6 mm, tube (2.3–)2.5–3.5 mm, lobes (1.4–)1.6–3 mm.

Legumes

(10–)15–30 × 5–15(–22) mm;

stipe (1–)1.5–3.3 mm.

(20–)30–50 × 14–26 mm.

Seeds

12–16(–26).

(17–)20–29;

stipe 1.5–3 mm.

2n

= 22.

= 22.

Astragalus ceramicus var. ceramicus

Astragalus ceramicus var. filifolius

Phenology Flowering late Apr–Jul. Flowering late Apr–Jul.
Habitat Dunes, sandy sites in pinyon-juniper, sagebrush, stream banks, grasslands, mixed desert shrub communities. Dunes, sandy hollows in rolling plains, sandy fields, sand bars of intermittent streams.
Elevation 1200–2500 m. (3900–8200 ft.) 900–2200(–2600) m. (3000–7200(–8500) ft.)
Distribution
from FNA
AZ; CO; NM; UT
[BONAP county map]
from FNA
CO; KS; MT; ND; NE; NM; OK; SD; WY
[BONAP county map]
Discussion

Variety filifolius is known from the Great Plains and eastern slope of the Rocky Mountains.

Astragalus angustus var. imperfectus (Sheldon) M. E. Jones, A. ceramicus var. imperfectus E. Sheldon, A. filifolius A. Gray (not A. filifolius Clos 1847), and A. longifolius (Pursh) Rydberg are illegitimate names that pertain here.

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

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Cusickiani > Astragalus ceramicus Fabaceae > subfam. Faboideae > Astragalus > sect. Cusickiani > Astragalus ceramicus
Sibling taxa
A. ceramicus var. apus, A. ceramicus var. filifolius
A. ceramicus var. apus, A. ceramicus var. ceramicus
Synonyms A. pictus var. filifolius, A. angustus var. longifolius, A. ceramicus var. longifolius, A. mitophyllus, Orobus longifolius, Phaca longifolia, Physondra longifolia
Name authority unknown (A. Gray) F. J. Hermann: J. Wash. Acad. Sci. 38: 237. (1948)
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