Flora of North America species comparison

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Astragalus lentiginosus var. maricopae
Photo is of parent taxon

maricopa milkvetch
Habit Plants perennial (short-lived), 45–65 cm, herbage green or subglabrescent.
Leaves

(4–)6–16 cm;

leaflets 17–25, blades ovate, broadly oval, oblong-elliptic, or obovate-cordate, (3–)5–22 mm, apex obtuse and apiculate or emarginate.
Racemes

loosely 13–30-flowered;

axis elongating, (3–)5–20 cm in fruit.
Peduncles

5–14 cm.
Flowers

15–16.5 mm;

calyx 7.2–8.6 mm, tube 5.6–6.4 mm, lobes 1.6–2.6 mm;

corolla ochroleucous (immaculate).
Legumes

green becoming stramineous, narrowly oblong- or linear-ellipsoid, not inflated, 20–30 × 3.7–5 mm, bilocular, somewhat fleshy becoming leathery or stiffly papery, glabrous;

beak 3–5 mm, unilocular.
Seeds

22–26.

Astragalus lentiginosus var. maricopae
Phenology Flowering Mar–May.
Habitat Washes, roadsides with Larrea.
Elevation 300–700 m. (1000–2300 ft.)
Distribution
from FNA
AZ
[BONAP county map]
Discussion

Variety maricopae is common in the Cave Creek and Fish Creek areas in Maricopa County. In years with higher rainfall it is weedy in subdivisions where desert vegetation remains intact.

(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. ambiguus, 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. 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: Leafl. W. Bot. 4: 140. (1945)
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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