Flora of North America species comparison

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Astragalus lentiginosus var. ambiguus
Photo is of parent taxon

freckled milkvetch, peach springs freckled milkvetch
Habit Plants perennial, 3–5 cm.
Leaves

7–14 cm;

leaflets 13–21, blades oblanceolate or oblong-obovate, (3–)7.5–15 mm, apex retuse-emarginate.
Racemes

loosely (7–)15–20-flowered, lax and open in fruit;

axis (4–)5.5–9 cm in fruit.
Peduncles

7–11 cm.
Flowers

(13–)15–16.7 mm;

calyx 6.7–8 mm, tube 5–5.7 mm, lobes 1.6–2.3 mm;

corolla purple.
Legumes

green and unmottled becoming stramineous, plumply ovoid or subglobose, inflated but firm, 15–22 × 9–13 mm, stiffly papery or almost leathery, usually glabrous, rarely puberulent;

beak 2–5 mm, unilocular.
Seeds

22–34.

Astragalus lentiginosus var. ambiguus
Phenology Flowering Apr–May.
Habitat Open limestone or granite hill­sides.
Elevation 1200–1500 m. (3900–4900 ft.)
Distribution
from FNA
AZ
[BONAP county map]
Discussion

Variety ambiguus is known from Mohave County south of the Colorado River.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus
Sibling taxa
A. lentiginosus var. albifolius, A. lentiginosus var. antonius, A. lentiginosus var. australis, A. lentiginosus var. chartaceus, A. lentiginosus var. coachellae, A. lentiginosus var. coulteri, A. lentiginosus var. diphysus, A. lentiginosus var. floribundus, A. lentiginosus var. fremontii, A. lentiginosus var. higginsii, A. lentiginosus var. idriensis, A. lentiginosus var. ineptus, A. lentiginosus var. kennedyi, A. lentiginosus var. kernensis, A. lentiginosus var. latus, A. lentiginosus var. lentiginosus, A. lentiginosus var. macrolobus, A. lentiginosus var. maricopae, A. lentiginosus var. micans, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, A. lentiginosus var. negundo, A. lentiginosus var. nigricalycis, A. lentiginosus var. oropedii, A. lentiginosus var. palans, A. lentiginosus var. piscinensis, A. lentiginosus var. platyphyllidius, A. lentiginosus var. pohlii, A. lentiginosus var. salinus, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, A. lentiginosus var. sesquimetralis, A. lentiginosus var. sierrae, A. lentiginosus var. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. trumbullensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus
Name authority Barneby: Mem. New York Bot. Gard. 13: 945. (1964)
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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