Astragalus ceramicus var. ceramicus |
Astragalus ceramicus var. apus |
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painted milkvetch |
Bonneville County milkvetch, painted milkvetch |
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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, mostly reduced to filiform rachis; leaflets 0(–5). |
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. |
2–40 × 15–24 mm; stipe 0 m m. Seeds (17–)20–29. |
Seeds | 12–16(–26). |
|
2n | = 22. |
= 22. |
Astragalus ceramicus var. ceramicus |
Astragalus ceramicus var. apus |
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Phenology | Flowering late Apr–Jul. | Flowering May–Jul. |
Habitat | Dunes, sandy sites in pinyon-juniper, sagebrush, stream banks, grasslands, mixed desert shrub communities. | Dunes, sandy flats. |
Elevation | 1200–2500 m. (3900–8200 ft.) | 1300–1500 m. (4300–4900 ft.) |
Distribution |
AZ; CO; NM; UT |
ID; MT |
Discussion | Variety apus occurs on the eastern end of the Snake River Plains eastward to Bonneville and Madison counties, Idaho, and Beaverhead County, Montana. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Name authority | unknown | Barneby: Mem. New York Bot. Gard. 13: 341. (1964) |
Web links |